Files
linux/drivers/staging/android
Viktor Slavkovic f689b67a36 staging: android: ashmem: fix a race condition in ASHMEM_SET_SIZE ioctl
A lock-unlock is missing in ASHMEM_SET_SIZE ioctl which can result in a
race condition when mmap is called. After the !asma->file check, before
setting asma->size, asma->file can be set in mmap. That would result in
having different asma->size than the mapped memory size. Combined with
ASHMEM_UNPIN ioctl and shrinker invocation, this can result in memory
corruption.

Bug: 66954097
Signed-off-by: Viktor Slavkovic <viktors@google.com>
Change-Id: I268225133f96fde0fadd1ec621aafef27d392d65
2018-01-09 15:40:58 +08:00
..
2016-02-18 15:18:27 +08:00
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