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| author | Satya Durga Srinivasu Prabhala <satyap@codeaurora.org> | 2017-02-21 13:34:06 -0800 |
|---|---|---|
| committer | Satya Durga Srinivasu Prabhala <satyap@codeaurora.org> | 2017-02-27 20:23:40 -0800 |
| commit | 4d1903a891b439b8bbe248144ee40d6c962fd021 (patch) | |
| tree | 2e33700c5a475cdf32b43bed59cefbb08aeea59e /net/switchdev/switchdev.c | |
| parent | 3bf75ddd22dc6e7303e962a262c8d64e5ab87b15 (diff) | |
soc: qcom: sysmon-qmi: fix object corruption due to use after free
While executing multimedia tests which include ADSP SSR testing,
below object corruption observed due to use after free condition.
Add mutex lock to fix the issue.
===============================================
BUG kmalloc-1024 (Tainted: G W O ): \
Poison overwritten
-----------------------------------------------
INFO: 0xffffffc030db0cb0-0xffffffc030db0cba. \
First byte 0xff instead of 0x6b
INFO: Allocated in qmi_handle_create+0x4c/0x320 \
age=14486 cpu=4 pid=32505
alloc_debug_processing+0x138/0x18c
___slab_alloc.constprop.61+0x4ec/0x5d0
__slab_alloc.isra.58.constprop.60+0x48/0x74
kmem_cache_alloc_trace+0xd4/0x25c
qmi_handle_create+0x4c/0x320
sysmon_clnt_svc_arrive+0x34/0xe4
process_one_work+0x234/0x40c
worker_thread+0x2e0/0x410
kthread+0xf4/0xfc
ret_from_fork+0x10/0x40
INFO: Freed in qmi_handle_destroy+0x154/0x16c \
age=1159 cpu=4 pid=3784
free_debug_processing+0x290/0x368
__slab_free+0x74/0x3ac
kfree+0x21c/0x290
qmi_handle_destroy+0x154/0x16c
sysmon_clnt_svc_exit+0x20/0x30
process_one_work+0x234/0x40c
worker_thread+0x2e0/0x410
kthread+0xf4/0xfc
ret_from_fork+0x10/0x40
CRs-Fixed: 2009777
Change-Id: If3730f5f972424d49d43d552b7fd1a28e4e0b794
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions