mirror of https://gitee.com/openkylin/linux.git
443064cb0b
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. Signed-off-by: Viktor Slavkovic <viktors@google.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| ion | ||
| uapi | ||
| Kconfig | ||
| Makefile | ||
| TODO | ||
| ashmem.c | ||
| ashmem.h | ||