diff options
| author | Cong Wang <xiyou.wangcong@gmail.com> | 2019-07-22 20:41:22 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-04 09:34:54 +0200 |
| commit | 687075923787e436f6601557cca5ea6d0e6c107d (patch) | |
| tree | 98506c4b98888a3b2b5ea47b5471f4085a8ac7b8 /include/linux/timerqueue.h | |
| parent | 6979ab4d3c7c94beb18de3abd430301579281a6e (diff) | |
netrom: hold sock when setting skb->destructor
[ Upstream commit 4638faac032756f7eab5524be7be56bee77e426b ]
sock_efree() releases the sock refcnt, if we don't hold this refcnt
when setting skb->destructor to it, the refcnt would not be balanced.
This leads to several bug reports from syzbot.
I have checked other users of sock_efree(), all of them hold the
sock refcnt.
Fixes: c8c8218ec5af ("netrom: fix a memory leak in nr_rx_frame()")
Reported-and-tested-by: <syzbot+622bdabb128acc33427d@syzkaller.appspotmail.com>
Reported-and-tested-by: <syzbot+6eaef7158b19e3fec3a0@syzkaller.appspotmail.com>
Reported-and-tested-by: <syzbot+9399c158fcc09b21d0d2@syzkaller.appspotmail.com>
Reported-and-tested-by: <syzbot+a34e5f3d0300163f0c87@syzkaller.appspotmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-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>
Diffstat (limited to 'include/linux/timerqueue.h')
0 files changed, 0 insertions, 0 deletions