diff options
| author | Gao Xiang <[email protected]> | 2022-12-05 23:00:50 +0800 |
|---|---|---|
| committer | Gao Xiang <[email protected]> | 2022-12-07 10:56:31 +0800 |
| commit | c505feba4c0d76084e56ec498ce819f02a7043ae (patch) | |
| tree | e6e3c5d70ced553c0342124ed799a576dd960aa2 /scripts/generate_rust_analyzer.py | |
| parent | d5d188b8f8b38d3d71dd05993874b4fc9284ce95 (diff) | |
erofs: validate the extent length for uncompressed pclusters
syzkaller reported a KASAN use-after-free:
https://syzkaller.appspot.com/bug?extid=2ae90e873e97f1faf6f2
The referenced fuzzed image actually has two issues:
- m_pa == 0 as a non-inlined pcluster;
- The logical length is longer than its physical length.
The first issue has already been addressed. This patch addresses
the second issue by checking the extent length validity.
Reported-by: [email protected]
Fixes: 02827e1796b3 ("staging: erofs: add erofs_map_blocks_iter")
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Gao Xiang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions