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commit e7661a8e5ce10b5321882d0bbaf3f81070903319 upstream.
When instrumenting the SCSI layer to run into the
!blk_rq_nr_phys_segments(rq) case the following warning emitted from the
block layer:
blk_peek_request: bad return=-22
This happens because since commit fd3fc0b4d730 ("scsi: don't BUG_ON()
empty DMA transfers") we return the wrong error value from
scsi_prep_fn() back to the block layer.
[mkp: silenced checkpatch]
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Fixes: fd3fc0b4d730 scsi: don't BUG_ON() empty DMA transfers
Cc: <stable@vger.kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[iwamatsu: - backport for 4.4.y and 4.9.y
- Use rq->nr_phys_segments instead of blk_rq_nr_phys_segments]
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 8066e6b449e050675df48e7c4b16c29f00507ff0 ]
When proxy mode is enabled the vxlan device might reply to Neighbor
Solicitation (NS) messages on behalf of remote hosts.
In case the NS message includes the "Source link-layer address" option
[1], the vxlan device will use the specified address as the link-layer
destination address in its reply.
To avoid an infinite loop, break out of the options parsing loop when
encountering an option with length zero and disregard the NS message.
This is consistent with the IPv6 ndisc code and RFC 4886 which states
that "Nodes MUST silently discard an ND packet that contains an option
with length zero" [2].
[1] https://tools.ietf.org/html/rfc4861#section-4.3
[2] https://tools.ietf.org/html/rfc4861#section-4.6
Fixes: 4b29dba9c085 ("vxlan: fix nonfunctional neigh_reduce()")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 79a1f0ccdbb4ad700590f61b00525b390cb53905 ]
Socket option IPV6_ADDRFORM supports UDP/UDPLITE and TCP at present.
Previously the checking logic looks like:
if (sk->sk_protocol == IPPROTO_UDP || sk->sk_protocol == IPPROTO_UDPLITE)
do_some_check;
else if (sk->sk_protocol != IPPROTO_TCP)
break;
After commit b6f6118901d1 ("ipv6: restrict IPV6_ADDRFORM operation"), TCP
was blocked as the logic changed to:
if (sk->sk_protocol == IPPROTO_UDP || sk->sk_protocol == IPPROTO_UDPLITE)
do_some_check;
else if (sk->sk_protocol == IPPROTO_TCP)
do_some_check;
break;
else
break;
Then after commit 82c9ae440857 ("ipv6: fix restrict IPV6_ADDRFORM operation")
UDP/UDPLITE were blocked as the logic changed to:
if (sk->sk_protocol == IPPROTO_UDP || sk->sk_protocol == IPPROTO_UDPLITE)
do_some_check;
if (sk->sk_protocol == IPPROTO_TCP)
do_some_check;
if (sk->sk_protocol != IPPROTO_TCP)
break;
Fix it by using Eric's code and simply remove the break in TCP check, which
looks like:
if (sk->sk_protocol == IPPROTO_UDP || sk->sk_protocol == IPPROTO_UDPLITE)
do_some_check;
else if (sk->sk_protocol == IPPROTO_TCP)
do_some_check;
else
break;
Fixes: 82c9ae440857 ("ipv6: fix restrict IPV6_ADDRFORM operation")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.227
scsi: scsi_devinfo: fixup string compare
usb: gadget: f_uac2: fix error handling in afunc_bind (again)
platform/x86: acer-wmi: setup accelerometer when ACPI device was found
esp6: fix memleak on error path in esp6_input
IB/mlx4: Fix an error handling path in 'mlx4_ib_rereg_user_mr()'
ALSA: hda - No loopback on ALC299 codec
spi: dw: use "smp_mb()" to avoid sending spi data error
s390/ftrace: save traced function caller
ARC: Fix ICCM & DCCM runtime size checks
x86/mmiotrace: Use cpumask_available() for cpumask_var_t variables
net: bmac: Fix read of MAC address from ROM
net/ethernet/freescale: rework quiesce/activate for ucc_geth
net: ethernet: stmmac: Enable interface clocks on probe for IPQ806x
pppoe: only process PADT targeted at local interfaces
mmc: fix compilation of user API
slcan: Fix double-free on slcan_open() error path
slip: not call free_netdev before rtnl_unlock in slip_open
scsi: ufs: Release clock if DMA map fails
devinet: fix memleak in inetdev_init()
NFC: st21nfca: add missed kfree_skb() in an error path
vsock: fix timeout in vsock_accept()
l2tp: add sk_family checks to l2tp_validate_socket
l2tp: do not use inet_hash()/inet_unhash()
USB: serial: qcserial: add DW5816e QDL support
USB: serial: usb_wwan: do not resubmit rx urb on fatal errors
USB: serial: option: add Telit LE910C1-EUX compositions
vt: keyboard: avoid signed integer overflow in k_ascii
staging: rtl8712: Fix IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
x86/cpu: Add a steppings field to struct x86_cpu_id
x86/cpu: Add 'table' argument to cpu_matches()
x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation
x86/speculation: Add SRBDS vulnerability and mitigation documentation
x86/speculation: Add Ivy Bridge to affected list
iio: vcnl4000: Fix i2c swapped word reading.
uprobes: ensure that uprobe->offset and ->ref_ctr_offset are properly aligned
Linux 4.4.227
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib2e396e7c9444adb4cad958e3423afe3c4d5963d
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commit 013b2deba9a6b80ca02f4fafd7dedf875e9b4450 upstream.
uprobe_write_opcode() must not cross page boundary; prepare_uprobe()
relies on arch_uprobe_analyze_insn() which should validate "vaddr" but
some architectures (csky, s390, and sparc) don't do this.
We can remove the BUG_ON() check in prepare_uprobe() and validate the
offset early in __uprobe_register(). The new IS_ALIGNED() check matches
the alignment check in arch_prepare_kprobe() on supported architectures,
so I think that all insns must be aligned to UPROBE_SWBP_INSN_SIZE.
Another problem is __update_ref_ctr() which was wrong from the very
beginning, it can read/write outside of kmap'ed page unless "vaddr" is
aligned to sizeof(short), __uprobe_register() should check this too.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Sven Schnelle <svens@linux.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[ check for ref_ctr_offset removed for backport - gregkh ]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 18dfb5326370991c81a6d1ed6d1aeee055cb8c05 ]
The bytes returned by the i2c reading need to be swapped
unconditionally. Otherwise, on be16 platforms, an incorrect value will be
returned.
Taking the slow path via next merge window as its been around a while
and we have a patch set dependent on this which would be held up.
Fixes: 62a1efb9f868 ("iio: add vcnl4000 combined ALS and proximity sensor")
Signed-off-by: Mathieu Othacehe <m.othacehe@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 3798cc4d106e91382bfe016caa2edada27c2bb3f upstream
Make the docs match the code.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 7222a1b5b87417f22265c92deea76a6aecd0fb0f upstream
Add documentation for the SRBDS vulnerability and its mitigation.
[ bp: Massage.
jpoimboe: sysfs table strings. ]
Signed-off-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 7e5b3c267d256822407a22fdce6afdf9cd13f9fb upstream
SRBDS is an MDS-like speculative side channel that can leak bits from the
random number generator (RNG) across cores and threads. New microcode
serializes the processor access during the execution of RDRAND and
RDSEED. This ensures that the shared buffer is overwritten before it is
released for reuse.
While it is present on all affected CPU models, the microcode mitigation
is not needed on models that enumerate ARCH_CAPABILITIES[MDS_NO] in the
cases where TSX is not supported or has been disabled with TSX_CTRL.
The mitigation is activated by default on affected processors and it
increases latency for RDRAND and RDSEED instructions. Among other
effects this will reduce throughput from /dev/urandom.
* Enable administrator to configure the mitigation off when desired using
either mitigations=off or srbds=off.
* Export vulnerability status via sysfs
* Rename file-scoped macros to apply for non-whitelist table initializations.
[ bp: Massage,
- s/VULNBL_INTEL_STEPPING/VULNBL_INTEL_STEPPINGS/g,
- do not read arch cap MSR a second time in tsx_fused_off() - just pass it in,
- flip check in cpu_set_bug_bits() to save an indentation level,
- reflow comments.
jpoimboe: s/Mitigated/Mitigation/ in user-visible strings
tglx: Dropped the fused off magic for now
]
Signed-off-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Tested-by: Neelima Krishnan <neelima.krishnan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 93920f61c2ad7edb01e63323832585796af75fc9 upstream
To make cpu_matches() reusable for other matching tables, have it take a
pointer to a x86_cpu_id table as an argument.
[ bp: Flip arguments order. ]
Signed-off-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit e9d7144597b10ff13ff2264c059f7d4a7fbc89ac upstream
Intel uses the same family/model for several CPUs. Sometimes the
stepping must be checked to tell them apart.
On x86 there can be at most 16 steppings. Add a steppings bitmask to
x86_cpu_id and a X86_MATCH_VENDOR_FAMILY_MODEL_STEPPING_FEATURE macro
and support for matching against family/model/stepping.
[ bp: Massage.
tglx: Lightweight variant for backporting ]
Signed-off-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b399151cb48db30ad1e0e93dd40d68c6d007b637 upstream.
x86_mask is a confusing name which is hard to associate with the
processor's stepping.
Additionally, correct an indent issue in lib/cpu.c.
[ Backport by Mark Gross to simplify the SRBDS backport ]
Signed-off-by: Jia Zhang <qianyue.zj@alibaba-inc.com>
[ Updated it to more recent kernels. ]
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bp@alien8.de
Cc: tony.luck@intel.com
Link: http://lkml.kernel.org/r/1514771530-70829-1-git-send-email-qianyue.zj@alibaba-inc.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 15ea976a1f12b5fd76b1bd6ff3eb5132fd28047f upstream.
The value in shared headers was fixed 9 years ago in commit 8d661f1e462d
("ieee80211: correct IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK macro") and
while looking at using shared headers for other duplicated constants
I noticed this driver uses the old value.
The macros are also defined twice in this file so I am deleting the
second definition.
Signed-off-by: Pascal Terjan <pterjan@google.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200523211247.23262-1-pterjan@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b86dab054059b970111b5516ae548efaae5b3aae upstream.
When k_ascii is invoked several times in a row there is a potential for
signed integer overflow:
UBSAN: Undefined behaviour in drivers/tty/vt/keyboard.c:888:19 signed integer overflow:
10 * 1111111111 cannot be represented in type 'int'
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.11 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xce/0x128 lib/dump_stack.c:118
ubsan_epilogue+0xe/0x30 lib/ubsan.c:154
handle_overflow+0xdc/0xf0 lib/ubsan.c:184
__ubsan_handle_mul_overflow+0x2a/0x40 lib/ubsan.c:205
k_ascii+0xbf/0xd0 drivers/tty/vt/keyboard.c:888
kbd_keycode drivers/tty/vt/keyboard.c:1477 [inline]
kbd_event+0x888/0x3be0 drivers/tty/vt/keyboard.c:1495
While it can be worked around by using check_mul_overflow()/
check_add_overflow(), it is better to introduce a separate flag to
signal that number pad is being used to compose a symbol, and
change type of the accumulator from signed to unsigned, thus
avoiding undefined behavior when it overflows.
Reported-by: Kyungtae Kim <kt0755@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200525232740.GA262061@dtor-ws
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 399ad9477c523f721f8e51d4f824bdf7267f120c upstream.
Add Telit LE910C1-EUX compositions:
0x1031: tty, tty, tty, rmnet
0x1033: tty, tty, tty, ecm
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Link: https://lore.kernel.org/r/20200525211106.27338-1-dnlplm@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 986c1748c84d7727defeaeca74a73b37f7d5cce1 upstream.
usb_wwan_indat_callback() shouldn't resubmit rx urb if the previous urb
status is a fatal error. Or the usb controller would keep processing the
new urbs then run into interrupt storm, and has no chance to recover.
Fixes: 6c1ee66a0b2b ("USB-Serial: Fix error handling of usb_wwan")
Cc: stable@vger.kernel.org
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3429444abdd9dbd5faebd9bee552ec6162b17ad6 upstream.
Add support for Dell Wireless 5816e Download Mode (AKA boot & hold mode /
QDL download mode) to drivers/usb/serial/qcserial.c
This is required to update device firmware.
Signed-off-by: Matt Jolly <Kangie@footclan.ninja>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 02c71b144c811bcdd865e0a1226d0407d11357e8 ]
syzbot recently found a way to crash the kernel [1]
Issue here is that inet_hash() & inet_unhash() are currently
only meant to be used by TCP & DCCP, since only these protocols
provide the needed hashinfo pointer.
L2TP uses a single list (instead of a hash table)
This old bug became an issue after commit 610236587600
("bpf: Add new cgroup attach type to enable sock modifications")
since after this commit, sk_common_release() can be called
while the L2TP socket is still considered 'hashed'.
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 7063 Comm: syz-executor654 Not tainted 5.7.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:inet_unhash+0x11f/0x770 net/ipv4/inet_hashtables.c:600
Code: 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e dd 04 00 00 48 8d 7d 08 44 8b 73 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 55 05 00 00 48 8d 7d 14 4c 8b 6d 08 48 b8 00 00
RSP: 0018:ffffc90001777d30 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88809a6df940 RCX: ffffffff8697c242
RDX: 0000000000000001 RSI: ffffffff8697c251 RDI: 0000000000000008
RBP: 0000000000000000 R08: ffff88809f3ae1c0 R09: fffffbfff1514cc1
R10: ffffffff8a8a6607 R11: fffffbfff1514cc0 R12: ffff88809a6df9b0
R13: 0000000000000007 R14: 0000000000000000 R15: ffffffff873a4d00
FS: 0000000001d2b880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000006cd090 CR3: 000000009403a000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
sk_common_release+0xba/0x370 net/core/sock.c:3210
inet_create net/ipv4/af_inet.c:390 [inline]
inet_create+0x966/0xe00 net/ipv4/af_inet.c:248
__sock_create+0x3cb/0x730 net/socket.c:1428
sock_create net/socket.c:1479 [inline]
__sys_socket+0xef/0x200 net/socket.c:1521
__do_sys_socket net/socket.c:1530 [inline]
__se_sys_socket net/socket.c:1528 [inline]
__x64_sys_socket+0x6f/0xb0 net/socket.c:1528
do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x441e29
Code: e8 fc b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffdce184148 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441e29
RDX: 0000000000000073 RSI: 0000000000000002 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000402c30 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 23b6578228ce553e ]---
RIP: 0010:inet_unhash+0x11f/0x770 net/ipv4/inet_hashtables.c:600
Code: 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e dd 04 00 00 48 8d 7d 08 44 8b 73 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 55 05 00 00 48 8d 7d 14 4c 8b 6d 08 48 b8 00 00
RSP: 0018:ffffc90001777d30 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88809a6df940 RCX: ffffffff8697c242
RDX: 0000000000000001 RSI: ffffffff8697c251 RDI: 0000000000000008
RBP: 0000000000000000 R08: ffff88809f3ae1c0 R09: fffffbfff1514cc1
R10: ffffffff8a8a6607 R11: fffffbfff1514cc0 R12: ffff88809a6df9b0
R13: 0000000000000007 R14: 0000000000000000 R15: ffffffff873a4d00
FS: 0000000001d2b880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000006cd090 CR3: 000000009403a000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Fixes: 0d76751fad77 ("l2tp: Add L2TPv3 IP encapsulation (no UDP) support")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: James Chapman <jchapman@katalix.com>
Cc: Andrii Nakryiko <andriin@fb.com>
Reported-by: syzbot+3610d489778b57cc8031@syzkaller.appspotmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit d9a81a225277686eb629938986d97629ea102633 ]
syzbot was able to trigger a crash after using an ISDN socket
and fool l2tp.
Fix this by making sure the UDP socket is of the proper family.
BUG: KASAN: slab-out-of-bounds in setup_udp_tunnel_sock+0x465/0x540 net/ipv4/udp_tunnel.c:78
Write of size 1 at addr ffff88808ed0c590 by task syz-executor.5/3018
CPU: 0 PID: 3018 Comm: syz-executor.5 Not tainted 5.7.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x188/0x20d lib/dump_stack.c:118
print_address_description.constprop.0.cold+0xd3/0x413 mm/kasan/report.c:382
__kasan_report.cold+0x20/0x38 mm/kasan/report.c:511
kasan_report+0x33/0x50 mm/kasan/common.c:625
setup_udp_tunnel_sock+0x465/0x540 net/ipv4/udp_tunnel.c:78
l2tp_tunnel_register+0xb15/0xdd0 net/l2tp/l2tp_core.c:1523
l2tp_nl_cmd_tunnel_create+0x4b2/0xa60 net/l2tp/l2tp_netlink.c:249
genl_family_rcv_msg_doit net/netlink/genetlink.c:673 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:718 [inline]
genl_rcv_msg+0x627/0xdf0 net/netlink/genetlink.c:735
netlink_rcv_skb+0x15a/0x410 net/netlink/af_netlink.c:2469
genl_rcv+0x24/0x40 net/netlink/genetlink.c:746
netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329
netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:672
____sys_sendmsg+0x6e6/0x810 net/socket.c:2352
___sys_sendmsg+0x100/0x170 net/socket.c:2406
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2439
do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca29
Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007effe76edc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000004fe1c0 RCX: 000000000045ca29
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000005
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000094e R14: 00000000004d5d00 R15: 00007effe76ee6d4
Allocated by task 3018:
save_stack+0x1b/0x40 mm/kasan/common.c:49
set_track mm/kasan/common.c:57 [inline]
__kasan_kmalloc mm/kasan/common.c:495 [inline]
__kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:468
__do_kmalloc mm/slab.c:3656 [inline]
__kmalloc+0x161/0x7a0 mm/slab.c:3665
kmalloc include/linux/slab.h:560 [inline]
sk_prot_alloc+0x223/0x2f0 net/core/sock.c:1612
sk_alloc+0x36/0x1100 net/core/sock.c:1666
data_sock_create drivers/isdn/mISDN/socket.c:600 [inline]
mISDN_sock_create+0x272/0x400 drivers/isdn/mISDN/socket.c:796
__sock_create+0x3cb/0x730 net/socket.c:1428
sock_create net/socket.c:1479 [inline]
__sys_socket+0xef/0x200 net/socket.c:1521
__do_sys_socket net/socket.c:1530 [inline]
__se_sys_socket net/socket.c:1528 [inline]
__x64_sys_socket+0x6f/0xb0 net/socket.c:1528
do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
entry_SYSCALL_64_after_hwframe+0x49/0xb3
Freed by task 2484:
save_stack+0x1b/0x40 mm/kasan/common.c:49
set_track mm/kasan/common.c:57 [inline]
kasan_set_free_info mm/kasan/common.c:317 [inline]
__kasan_slab_free+0xf7/0x140 mm/kasan/common.c:456
__cache_free mm/slab.c:3426 [inline]
kfree+0x109/0x2b0 mm/slab.c:3757
kvfree+0x42/0x50 mm/util.c:603
__free_fdtable+0x2d/0x70 fs/file.c:31
put_files_struct fs/file.c:420 [inline]
put_files_struct+0x248/0x2e0 fs/file.c:413
exit_files+0x7e/0xa0 fs/file.c:445
do_exit+0xb04/0x2dd0 kernel/exit.c:791
do_group_exit+0x125/0x340 kernel/exit.c:894
get_signal+0x47b/0x24e0 kernel/signal.c:2739
do_signal+0x81/0x2240 arch/x86/kernel/signal.c:784
exit_to_usermode_loop+0x26c/0x360 arch/x86/entry/common.c:161
prepare_exit_to_usermode arch/x86/entry/common.c:196 [inline]
syscall_return_slowpath arch/x86/entry/common.c:279 [inline]
do_syscall_64+0x6b1/0x7d0 arch/x86/entry/common.c:305
entry_SYSCALL_64_after_hwframe+0x49/0xb3
The buggy address belongs to the object at ffff88808ed0c000
which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 1424 bytes inside of
2048-byte region [ffff88808ed0c000, ffff88808ed0c800)
The buggy address belongs to the page:
page:ffffea00023b4300 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0
flags: 0xfffe0000000200(slab)
raw: 00fffe0000000200 ffffea0002838208 ffffea00015ba288 ffff8880aa000e00
raw: 0000000000000000 ffff88808ed0c000 0000000100000001 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88808ed0c480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88808ed0c500: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88808ed0c580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff88808ed0c600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88808ed0c680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
Fixes: 6b9f34239b00 ("l2tp: fix races in tunnel creation")
Fixes: fd558d186df2 ("l2tp: Split pppol2tp patch into separate l2tp and ppp parts")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: James Chapman <jchapman@katalix.com>
Cc: Guillaume Nault <gnault@redhat.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
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[ Upstream commit 7e0afbdfd13d1e708fe96e31c46c4897101a6a43 ]
The accept(2) is an "input" socket interface, so we should use
SO_RCVTIMEO instead of SO_SNDTIMEO to set the timeout.
So this patch replace sock_sndtimeo() with sock_rcvtimeo() to
use the right timeout in the vsock_accept().
Fixes: d021c344051a ("VSOCK: Introduce VM Sockets")
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 3decabdc714ca56c944f4669b4cdec5c2c1cea23 ]
st21nfca_tm_send_atr_res() misses to call kfree_skb() in an error path.
Add the missed function call to fix it.
Fixes: 1892bf844ea0 ("NFC: st21nfca: Adding P2P support to st21nfca in Initiator & Target mode")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 1b49cd71b52403822731dc9f283185d1da355f97 ]
When devinet_sysctl_register() failed, the memory allocated
in neigh_parms_alloc() should be freed.
Fixes: 20e61da7ffcf ("ipv4: fail early when creating netdev named all or default")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 17c7d35f141ef6158076adf3338f115f64fcf760 upstream.
In queuecommand path, if DMA map fails, it bails out with clock held. In
this case, release the clock to keep its usage paired.
[mkp: applied by hand]
Link: https://lore.kernel.org/r/0101016ed3d66395-1b7e7fce-b74d-42ca-a88a-4db78b795d3b-000000@us-west-2.amazonses.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[EB: resolved cherry-pick conflict caused by newer kernels not having
the clear_bit_unlock() line]
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f596c87005f7b1baeb7d62d9a9e25d68c3dfae10 upstream.
As the description before netdev_run_todo, we cannot call free_netdev
before rtnl_unlock, fix it by reorder the code.
Signed-off-by: yangerkun <yangerkun@huawei.com>
Reviewed-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to <4.11: free_netdev() is called through sl_free_netdev()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit 9ebd796e2400 ("can: slcan: Fix use-after-free Read in
slcan_open") was incorrectly backported to 4.4 and 4.9 stable
branches.
Since they do not have commit cf124db566e6 ("net: Fix inconsistent
teardown and release of private netdev state."), the destructor
function slc_free_netdev() is already responsible for calling
free_netdev() and slcan_open() must not call both of them.
yangerkun previously fixed the same bug in slip.
Fixes: ce624b2089ea ("can: slcan: Fix use-after-free Read in slcan_open") # 4.4
Fixes: f59604a80fa4 ("slcan: not call free_netdev before rtnl_unlock ...") # 4.4
Fixes: 56635a1e6ffb ("can: slcan: Fix use-after-free Read in slcan_open") # 4.9
Fixes: a1c9b23142ac ("slcan: not call free_netdev before rtnl_unlock ...") # 4.9
Cc: yangerkun <yangerkun@huawei.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 83fc5dd57f86c3ec7d6d22565a6ff6c948853b64 upstream.
The definitions of MMC_IOC_CMD and of MMC_IOC_MULTI_CMD rely on
MMC_BLOCK_MAJOR:
#define MMC_IOC_CMD _IOWR(MMC_BLOCK_MAJOR, 0, struct mmc_ioc_cmd)
#define MMC_IOC_MULTI_CMD _IOWR(MMC_BLOCK_MAJOR, 1, struct mmc_ioc_multi_cmd)
However, MMC_BLOCK_MAJOR is defined in linux/major.h and
linux/mmc/ioctl.h did not include it.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200511161902.191405-1-Jerome.Pouiller@silabs.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We don't want to disconnect a session because of a stray PADT arriving
while the interface is in promiscuous mode.
Furthermore, multicast and broadcast packets make no sense here, so
only PACKET_HOST is accepted.
Reported-by: David Balažic <xerces9@gmail.com>
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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[ Upstream commit a96ac8a0045e3cbe3e5af6d1b3c78c6c2065dec5 ]
The ipq806x_gmac_probe() function enables the PTP clock but not the
appropriate interface clocks. This means that if the bootloader hasn't
done so attempting to bring up the interface will fail with an error
like:
[ 59.028131] ipq806x-gmac-dwmac 37600000.ethernet: Failed to reset the dma
[ 59.028196] ipq806x-gmac-dwmac 37600000.ethernet eth1: stmmac_hw_setup: DMA engine initialization failed
[ 59.034056] ipq806x-gmac-dwmac 37600000.ethernet eth1: stmmac_open: Hw setup failed
This patch, a slightly cleaned up version of one posted by Sergey
Sergeev in:
https://forum.openwrt.org/t/support-for-mikrotik-rb3011uias-rm/4064/257
correctly enables the clock; we have already configured the source just
before this.
Tested on a MikroTik RB3011.
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 79dde73cf9bcf1dd317a2667f78b758e9fe139ed ]
ugeth_quiesce/activate are used to halt the controller when there is a
link change that requires to reconfigure the mac.
The previous implementation called netif_device_detach(). This however
causes the initial activation of the netdevice to fail precisely because
it's detached. For details, see [1].
A possible workaround was the revert of commit
net: linkwatch: add check for netdevice being present to linkwatch_do_dev
However, the check introduced in the above commit is correct and shall be
kept.
The netif_device_detach() is thus replaced with
netif_tx_stop_all_queues() that prevents any tranmission. This allows to
perform mac config change required by the link change, without detaching
the corresponding netdevice and thus not preventing its initial
activation.
[1] https://lists.openwall.net/netdev/2020/01/08/201
Signed-off-by: Valentin Longchamp <valentin@longchamp.me>
Acked-by: Matteo Ghidoni <matteo.ghidoni@ch.abb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ef01cee2ee1b369c57a936166483d40942bcc3e3 ]
In bmac_get_station_address, We're reading two bytes at a time from ROM,
but we do that six times, resulting in 12 bytes of read & writes. This
means we will write off the end of the six-byte destination buffer.
This change fixes the for-loop to only read/write six bytes.
Based on a proposed fix from Finn Thain <fthain@telegraphics.com.au>.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Reported-by: Stan Johnson <userm57@yahoo.com>
Tested-by: Stan Johnson <userm57@yahoo.com>
Reported-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit d7110a26e5905ec2fe3fc88bc6a538901accb72b ]
When building with Clang + -Wtautological-compare and
CONFIG_CPUMASK_OFFSTACK unset:
arch/x86/mm/mmio-mod.c:375:6: warning: comparison of array 'downed_cpus'
equal to a null pointer is always false [-Wtautological-pointer-compare]
if (downed_cpus == NULL &&
^~~~~~~~~~~ ~~~~
arch/x86/mm/mmio-mod.c:405:6: warning: comparison of array 'downed_cpus'
equal to a null pointer is always false [-Wtautological-pointer-compare]
if (downed_cpus == NULL || cpumask_weight(downed_cpus) == 0)
^~~~~~~~~~~ ~~~~
2 warnings generated.
Commit
f7e30f01a9e2 ("cpumask: Add helper cpumask_available()")
added cpumask_available() to fix warnings of this nature. Use that here
so that clang does not warn regardless of CONFIG_CPUMASK_OFFSTACK's
value.
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Link: https://github.com/ClangBuiltLinux/linux/issues/982
Link: https://lkml.kernel.org/r/20200408205323.44490-1-natechancellor@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 43900edf67d7ef3ac8909854d75b8a1fba2d570c ]
As of today the ICCM and DCCM size checks are incorrectly using
mismatched units (KiB checked against bytes). The CONFIG_ARC_DCCM_SZ
and CONFIG_ARC_ICCM_SZ are in KiB, but the size calculated in
runtime and stored in cpu->dccm.sz and cpu->iccm.sz is in bytes.
Fix that.
Reported-by: Paul Greco <pmgreco@us.ibm.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b4adfe55915d8363e244e42386d69567db1719b9 ]
A typical backtrace acquired from ftraced function currently looks like
the following (e.g. for "path_openat"):
arch_stack_walk+0x15c/0x2d8
stack_trace_save+0x50/0x68
stack_trace_call+0x15a/0x3b8
ftrace_graph_caller+0x0/0x1c
0x3e0007e3c98 <- ftraced function caller (should be do_filp_open+0x7c/0xe8)
do_open_execat+0x70/0x1b8
__do_execve_file.isra.0+0x7d8/0x860
__s390x_sys_execve+0x56/0x68
system_call+0xdc/0x2d8
Note random "0x3e0007e3c98" stack value as ftraced function caller. This
value causes either imprecise unwinder result or unwinding failure.
That "0x3e0007e3c98" comes from r14 of ftraced function stack frame, which
it haven't had a chance to initialize since the very first instruction
calls ftrace code ("ftrace_caller"). (ftraced function might never
save r14 as well). Nevertheless according to s390 ABI any function
is called with stack frame allocated for it and r14 contains return
address. "ftrace_caller" itself is called with "brasl %r0,ftrace_caller".
So, to fix this issue simply always save traced function caller onto
ftraced function stack frame.
Reported-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit bfda044533b213985bc62bd7ca96f2b984d21b80 ]
Because of out-of-order execution about some CPU architecture,
In this debug stage we find Completing spi interrupt enable ->
prodrucing TXEI interrupt -> running "interrupt_transfer" function
will prior to set "dw->rx and dws->rx_end" data, so this patch add
memory barrier to enable dw->rx and dw->rx_end to be visible and
solve to send SPI data error.
eg:
it will fix to this following low possibility error in testing environment
which using SPI control to connect TPM Modules
kernel: tpm tpm0: Operation Timed out
kernel: tpm tpm0: tpm_relinquish_locality: : error -1
Signed-off-by: fengsheng <fengsheng5@huawei.com>
Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Link: https://lore.kernel.org/r/1578019930-55858-1-git-send-email-kong.kongxinwei@hisilicon.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit fa16b69f1299004b60b625f181143500a246e5cb upstream.
ALC299 has no loopback mixer, but the driver still tries to add a beep
control over the mixer NID which leads to the error at accessing it.
This patch fixes it by properly declaring mixer_nid=0 for this codec.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=195775
Fixes: 28f1f9b26cee ("ALSA: hda/realtek - Add new codec ID ALC299")
Cc: stable@vger.kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3dc7c7badb7502ec3e3aa817a8bdd9e53aa54c52 upstream.
Before returning -EPERM we should release some resources, as already done
in the other error handling path of the function.
Fixes: d8f9cc328c88 ("IB/mlx4: Mark user MR as writable if actual virtual memory is writable")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 7284fdf39a912322ce97de2d30def3c6068a418c upstream.
This ought to be an omission in e6194923237 ("esp: Fix memleaks on error
paths."). The memleak on error path in esp6_input is similar to esp_input
of esp4.
Fixes: e6194923237 ("esp: Fix memleaks on error paths.")
Fixes: 3f29770723f ("ipsec: check return value of skb_to_sgvec always")
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f9ac89f5ad613b462339e845aeb8494646fd9be2 upstream.
The 98d610c3739a patch was introduced since v4.11-rc1 that it causes
that the accelerometer input device will not be created on workable
machines because the HID string comparing logic is wrong.
And, the patch doesn't prevent that the accelerometer input device
be created on the machines that have no BST0001. That's because
the acpi_get_devices() returns success even it didn't find any
match device.
This patch fixed the HID string comparing logic of BST0001 device.
And, it also makes sure that the acpi_get_devices() returns
acpi_handle for BST0001.
Fixes: 98d610c3739a ("acer-wmi: setup accelerometer when machine has appropriate notify event")
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=193761
Reported-by: Samuel Sieb <samuel-kbugs@sieb.net>
Signed-off-by: "Lee, Chun-Yi" <jlee@suse.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit e87581fe0509020f77ebf0b7c4c1c338c6a4bcf6 upstream.
If usb_ep_autoconfig() fails (i.e. returns a null endpoint descriptor),
we expect afunc_bind() to fail (i.e. return a negative error code).
However, due to v4.10-rc1 commit f1d3861d63a5 ("usb: gadget: f_uac2: fix
error handling at afunc_bind"), afunc_bind() returns zero, telling the
caller that it succeeded. This then generates NULL pointer dereference
in below scenario on Rcar H3-ES20-Salvator-X target:
rcar-gen3:/home/root# modprobe g_audio
[ 626.521155] g_audio gadget: afunc_bind:565 Error!
[ 626.526319] g_audio gadget: Linux USB Audio Gadget, version: Feb 2, 2012
[ 626.533405] g_audio gadget: g_audio ready
rcar-gen3:/home/root#
rcar-gen3:/home/root# modprobe -r g_audio
[ 728.256707] ==================================================================
[ 728.264293] BUG: KASAN: null-ptr-deref in u_audio_stop_capture+0x70/0x268 [u_audio]
[ 728.272244] Read of size 8 at addr 00000000000000a0 by task modprobe/2545
[ 728.279309]
[ 728.280849] CPU: 0 PID: 2545 Comm: modprobe Tainted: G WC 4.14.47+ #152
[ 728.288778] Hardware name: Renesas Salvator-X board based on r8a7795 ES2.0+ (DT)
[ 728.296454] Call trace:
[ 728.299151] [<ffff2000080925ac>] dump_backtrace+0x0/0x364
[ 728.304808] [<ffff200008092924>] show_stack+0x14/0x1c
[ 728.310081] [<ffff200008f8d5cc>] dump_stack+0x108/0x174
[ 728.315522] [<ffff2000083c77c8>] kasan_report+0x1fc/0x354
[ 728.321134] [<ffff2000083c611c>] __asan_load8+0x24/0x94
[ 728.326600] [<ffff2000021e1618>] u_audio_stop_capture+0x70/0x268 [u_audio]
[ 728.333735] [<ffff2000021f8b7c>] afunc_disable+0x44/0x60 [usb_f_uac2]
[ 728.340503] [<ffff20000218177c>] usb_remove_function+0x9c/0x210 [libcomposite]
[ 728.348060] [<ffff200002183320>] remove_config.isra.2+0x1d8/0x218 [libcomposite]
[ 728.355788] [<ffff200002186c54>] __composite_unbind+0x104/0x1f8 [libcomposite]
[ 728.363339] [<ffff200002186d58>] composite_unbind+0x10/0x18 [libcomposite]
[ 728.370536] [<ffff20000152f158>] usb_gadget_remove_driver+0xc0/0x170 [udc_core]
[ 728.378172] [<ffff20000153154c>] usb_gadget_unregister_driver+0x1cc/0x258 [udc_core]
[ 728.386274] [<ffff200002180de8>] usb_composite_unregister+0x10/0x18 [libcomposite]
[ 728.394116] [<ffff2000021d035c>] audio_driver_exit+0x14/0x28 [g_audio]
[ 728.400878] [<ffff200008213ed4>] SyS_delete_module+0x288/0x32c
[ 728.406935] Exception stack(0xffff8006cf6c7ec0 to 0xffff8006cf6c8000)
[ 728.413624] 7ec0: 0000000006136428 0000000000000800 0000000000000000 0000ffffd706efe8
[ 728.421718] 7ee0: 0000ffffd706efe9 000000000000000a 1999999999999999 0000000000000000
[ 728.429792] 7f00: 000000000000006a 000000000042c078 0000000000000000 0000000000000005
[ 728.437870] 7f20: 0000000000000000 0000000000000000 0000000000000004 0000000000000000
[ 728.445952] 7f40: 000000000042bfc8 0000ffffbc7c8f40 0000000000000000 00000000061363c0
[ 728.454035] 7f60: 0000000006136428 0000000000000000 0000000000000000 0000000006136428
[ 728.462114] 7f80: 000000000042c000 0000ffffd7071448 000000000042c000 0000000000000000
[ 728.470190] 7fa0: 00000000061350c0 0000ffffd7070010 000000000041129c 0000ffffd7070010
[ 728.478281] 7fc0: 0000ffffbc7c8f48 0000000060000000 0000000006136428 000000000000006a
[ 728.486351] 7fe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 728.494434] [<ffff200008084780>] el0_svc_naked+0x34/0x38
[ 728.499957] ==================================================================
[ 728.507801] Unable to handle kernel NULL pointer dereference at virtual address 000000a0
[ 728.517742] Mem abort info:
[ 728.520993] Exception class = DABT (current EL), IL = 32 bits
[ 728.527375] SET = 0, FnV = 0
[ 728.530731] EA = 0, S1PTW = 0
[ 728.534361] Data abort info:
[ 728.537650] ISV = 0, ISS = 0x00000006
[ 728.541863] CM = 0, WnR = 0
[ 728.545167] user pgtable: 4k pages, 48-bit VAs, pgd = ffff8006c6100000
[ 728.552156] [00000000000000a0] *pgd=0000000716a8d003
[ 728.557519] , *pud=00000007116fc003
[ 728.561259] , *pmd=0000000000000000
[ 728.564985] Internal error: Oops: 96000006 [#1] PREEMPT SMP
[ 728.570815] Modules linked in:
[ 728.574023] usb_f_uac2
[ 728.576560] u_audio
[ 728.578827] g_audio(-)
[ 728.581361] libcomposite
[ 728.584071] configfs
[ 728.586428] aes_ce_blk
[ 728.588960] sata_rcar
[ 728.591421] crypto_simd
[ 728.594039] cryptd
[ 728.596217] libata
[ 728.598396] aes_ce_cipher
[ 728.601188] crc32_ce
[ 728.603542] ghash_ce
[ 728.605896] gf128mul
[ 728.608250] aes_arm64
[ 728.610692] scsi_mod
[ 728.613046] sha2_ce
[ 728.615313] xhci_plat_hcd
[ 728.618106] sha256_arm64
[ 728.620811] sha1_ce
[ 728.623077] renesas_usbhs
[ 728.625869] xhci_hcd
[ 728.628243] renesas_usb3
[ 728.630948] sha1_generic
[ 728.633670] ravb_streaming(C)
[ 728.636814] udc_core
[ 728.639168] cpufreq_dt
[ 728.641697] rcar_gen3_thermal
[ 728.644840] usb_dmac
[ 728.647194] pwm_rcar
[ 728.649548] thermal_sys
[ 728.652165] virt_dma
[ 728.654519] mch_core(C)
[ 728.657137] pwm_bl
[ 728.659315] snd_soc_rcar
[ 728.662020] snd_aloop
[ 728.664462] snd_soc_generic_card
[ 728.667869] snd_soc_ak4613
[ 728.670749] ipv6
[ 728.672768] autofs4
[ 728.675052] CPU: 0 PID: 2545 Comm: modprobe Tainted: G B WC 4.14.47+ #152
[ 728.682973] Hardware name: Renesas Salvator-X board based on r8a7795 ES2.0+ (DT)
[ 728.690637] task: ffff8006ced38000 task.stack: ffff8006cf6c0000
[ 728.696814] PC is at u_audio_stop_capture+0x70/0x268 [u_audio]
[ 728.702896] LR is at u_audio_stop_capture+0x70/0x268 [u_audio]
[ 728.708964] pc : [<ffff2000021e1618>] lr : [<ffff2000021e1618>] pstate: 60000145
[ 728.716620] sp : ffff8006cf6c7a50
[ 728.720154] x29: ffff8006cf6c7a50
[ 728.723760] x28: ffff8006ced38000
[ 728.727272] x27: ffff200008fd7000
[ 728.730857] x26: ffff2000021d2340
[ 728.734361] x25: 0000000000000000
[ 728.737948] x24: ffff200009e94b08
[ 728.741452] x23: 00000000000000a0
[ 728.745052] x22: 00000000000000a8
[ 728.748558] x21: 1ffff000d9ed8f7c
[ 728.752142] x20: ffff8006d671a800
[ 728.755646] x19: 0000000000000000
[ 728.759231] x18: 0000000000000000
[ 728.762736] x17: 0000ffffbc7c8f40
[ 728.766320] x16: ffff200008213c4c
[ 728.769823] x15: 0000000000000000
[ 728.773408] x14: 0720072007200720
[ 728.776912] x13: 0720072007200720
[ 728.780497] x12: ffffffffffffffff
[ 728.784001] x11: 0000000000000040
[ 728.787598] x10: 0000000000001600
[ 728.791103] x9 : ffff8006cf6c77a0
[ 728.794689] x8 : ffff8006ced39660
[ 728.798193] x7 : ffff20000811c738
[ 728.801794] x6 : 0000000000000000
[ 728.805299] x5 : dfff200000000000
[ 728.808885] x4 : ffff8006ced38000
[ 728.812390] x3 : ffff200008fb46e8
[ 728.815976] x2 : 0000000000000007
[ 728.819480] x1 : 3ba68643e7431500
[ 728.823066] x0 : 0000000000000000
[ 728.826574] Process modprobe (pid: 2545, stack limit = 0xffff8006cf6c0000)
[ 728.833704] Call trace:
[ 728.836292] Exception stack(0xffff8006cf6c7910 to 0xffff8006cf6c7a50)
[ 728.842987] 7900: 0000000000000000 3ba68643e7431500
[ 728.851084] 7920: 0000000000000007 ffff200008fb46e8 ffff8006ced38000 dfff200000000000
[ 728.859173] 7940: 0000000000000000 ffff20000811c738 ffff8006ced39660 ffff8006cf6c77a0
[ 728.867248] 7960: 0000000000001600 0000000000000040 ffffffffffffffff 0720072007200720
[ 728.875323] 7980: 0720072007200720 0000000000000000 ffff200008213c4c 0000ffffbc7c8f40
[ 728.883412] 79a0: 0000000000000000 0000000000000000 ffff8006d671a800 1ffff000d9ed8f7c
[ 728.891485] 79c0: 00000000000000a8 00000000000000a0 ffff200009e94b08 0000000000000000
[ 728.899561] 79e0: ffff2000021d2340 ffff200008fd7000 ffff8006ced38000 ffff8006cf6c7a50
[ 728.907636] 7a00: ffff2000021e1618 ffff8006cf6c7a50 ffff2000021e1618 0000000060000145
[ 728.915710] 7a20: 0000000000000008 0000000000000000 0000ffffffffffff 3ba68643e7431500
[ 728.923780] 7a40: ffff8006cf6c7a50 ffff2000021e1618
[ 728.928880] [<ffff2000021e1618>] u_audio_stop_capture+0x70/0x268 [u_audio]
[ 728.936032] [<ffff2000021f8b7c>] afunc_disable+0x44/0x60 [usb_f_uac2]
[ 728.942822] [<ffff20000218177c>] usb_remove_function+0x9c/0x210 [libcomposite]
[ 728.950385] [<ffff200002183320>] remove_config.isra.2+0x1d8/0x218 [libcomposite]
[ 728.958134] [<ffff200002186c54>] __composite_unbind+0x104/0x1f8 [libcomposite]
[ 728.965689] [<ffff200002186d58>] composite_unbind+0x10/0x18 [libcomposite]
[ 728.972882] [<ffff20000152f158>] usb_gadget_remove_driver+0xc0/0x170 [udc_core]
[ 728.980522] [<ffff20000153154c>] usb_gadget_unregister_driver+0x1cc/0x258 [udc_core]
[ 728.988638] [<ffff200002180de8>] usb_composite_unregister+0x10/0x18 [libcomposite]
[ 728.996472] [<ffff2000021d035c>] audio_driver_exit+0x14/0x28 [g_audio]
[ 729.003231] [<ffff200008213ed4>] SyS_delete_module+0x288/0x32c
[ 729.009278] Exception stack(0xffff8006cf6c7ec0 to 0xffff8006cf6c8000)
[ 729.015946] 7ec0: 0000000006136428 0000000000000800 0000000000000000 0000ffffd706efe8
[ 729.024022] 7ee0: 0000ffffd706efe9 000000000000000a 1999999999999999 0000000000000000
[ 729.032099] 7f00: 000000000000006a 000000000042c078 0000000000000000 0000000000000005
[ 729.040172] 7f20: 0000000000000000 0000000000000000 0000000000000004 0000000000000000
[ 729.048263] 7f40: 000000000042bfc8 0000ffffbc7c8f40 0000000000000000 00000000061363c0
[ 729.056337] 7f60: 0000000006136428 0000000000000000 0000000000000000 0000000006136428
[ 729.064411] 7f80: 000000000042c000 0000ffffd7071448 000000000042c000 0000000000000000
[ 729.072484] 7fa0: 00000000061350c0 0000ffffd7070010 000000000041129c 0000ffffd7070010
[ 729.080563] 7fc0: 0000ffffbc7c8f48 0000000060000000 0000000006136428 000000000000006a
[ 729.088636] 7fe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 729.096733] [<ffff200008084780>] el0_svc_naked+0x34/0x38
[ 729.102259] Code: 9597d1b3 aa1703e0 9102a276 958792b9 (f9405275)
[ 729.108617] ---[ end trace 7560c5fa3d100243 ]---
After this patch is applied, the issue is fixed:
rcar-gen3:/home/root# modprobe g_audio
[ 59.217127] g_audio gadget: afunc_bind:565 Error!
[ 59.222329] g_audio ee020000.usb: failed to start g_audio: -19
modprobe: ERROR: could not insert 'g_audio': No such device
rcar-gen3:/home/root# modprobe -r g_audio
rcar-gen3:/home/root#
Fixes: f1d3861d63a5 ("usb: gadget: f_uac2: fix error handling at afunc_bind")
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b8018b973c7cefa5eb386540130fa47315b8e337 upstream.
When checking the model and vendor string we need to use the minimum
value of either string, otherwise we'll miss out on wildcard matches.
And we should take care when matching with zero size strings; results
might be unpredictable. With this patch the rules for matching devinfo
strings are as follows:
- Vendor strings must match exactly
- Empty Model strings will only match if the devinfo model
is also empty
- Model strings shorter than the devinfo model string will
not match
Fixes: 5e7ff2c ("SCSI: fix new bug in scsi_dev_info_list string matching")
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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https://source.codeaurora.org/quic/la/kernel/msm-4.4 into lineage-17.1-caf-msm8998
* tag 'LA.UM.8.4.r1-05700-8x98.0' of https://source.codeaurora.org/quic/la/kernel/msm-4.4:
msm: adsprpc: Fix array index underflow problem
profiler: Fix compilation errors
fbdev: msm: fix ret value while translating to mdp format
clk: msm: Fix compilation errors with clang
ath10k: Fix compilation issue
drm/msm/sde: Fix clang compilation in SDE driver
ais: cam_soc_api: Fix compilation error
msm: camera: reset atomic variable
msm: v4l2loopback: Fix clang compilation error
msm: Fix compilation error
asoc: msm-8998: Add new FE's for TDM Primary
diag: dci: Synchronize dci mempool buffers alloc and free
headers_lib: rename Android.bp
kbuild: skip install/check of headers right under uapi directories
uapi: export all arch specifics directories
kernel_headers: Fix headers not detected in incremental builds
kernel headers: Update comparison logic
Kbuild : Use no-export-headers to avoid exporting headers
kernel_headers: kernel headers library package
kbuild: replace genhdr-y with generated-y
uapi: export all headers under uapi directories
uapi: sound: move necessary sound headers under uapi
kernel: Fix build errors with LLVM
Revert "ARM: dts: msm: Remove cpu max frequency restriction on cold temp for msm8996."
ARM: dts: msm: Remove cpu max frequency restriction on cold temp for msm8996.
input: touchpanel: Fix compilation errors with clang
asoc: msm-8998: TDM device grouping changes for capture path
kbuild, x86: Track generated headers with generated-y
kbuild: Remove stale asm-generic wrappers
ARM: put types.h in uapi
msm: ais: jpegdma: Fix uninitialized variable
Makefile.headersinst: remove destination-y option
msm: adsprpc: DSP device node to provide restricted access to ADSP/SLPI
Conflicts:
.gitignore
drivers/mmc/core/sdio_cis.c
Change-Id: I70cf2a0fbcfcbc834a21cf7fa8db9bd2e1c755b1
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Add check to restrict index underflow.This is to avoid
that it does not access invalid index.
Change-Id: Ib971033c5820ca4dab38ace3b106c7b1b42529e4
Acked-by: Gururaj Chalger <gchalger@qti.qualcomm.com>
Signed-off-by: Mohammed Nayeem Ur Rahman <mohara@codeaurora.org>
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Change-Id: I0dc595d9d471a7e738a8a8c9213721585f8b01e4
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Fix return value for error case while converting from
grayscale to mdp format, use integer instead of
unsigned int.
Change-Id: I5b5b529bfab566938a6c55844cd18813fad400b7
Signed-off-by: Raghavendra Ambadas <rambad@codeaurora.org>
Signed-off-by: Vinoth Jayaram <c_vinoja@codeaurora.org>
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Fix below compilation error with clang
warning: attribute 'packed' is ignored, place it after
"union" to apply attribute to type declaration
[-Wignored-attributes].
Change-Id: Id8cebb3d60b61d8d2168b8f8d77c79107edb4953
Signed-off-by: Swetha Chikkaboraiah <schikk@codeaurora.org>
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Fix below compilation error with clang
warning: address of array 'arg->ie' will always evaluate
to 'true' [-Wpointer-bool-conversion].
Change-Id: I83b3f584813720ded1c9c986f9aeaa3db1d71fcf
Signed-off-by: Swetha Chikkaboraiah <schikk@codeaurora.org>
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