Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: nilfs2: protect references to superblock parameters exposed in sysfs The superblock buffers of nilfs2 can not only be overwritten at runtime for modifications/repairs, but they are also regularly swapped, replaced during resizing, and even abandoned when degrading to one side due to backing device issues. So, accessing them requires mutual exclusion using the reader/writer semaphore "nilfs->ns_sem". Some sysfs attribute show methods read this superblock buffer without the necessary mutual exclusion, which can cause problems with pointer dereferencing and memory access, so fix it.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected da7141fb78db915680616e15677539fc8140cf53 before b90beafac05931cbfcb6b1bd4f67c1923f47040e; affected da7141fb78db915680616e15677539fc8140cf53 before ba97ba173f9625d5f34a986088979eae8b80d38e; affected da7141fb78db915680616e15677539fc8140cf53 before 157c0d94b4c40887329418c70ef4edd1a8d6b4ed; affected da7141fb78db915680616e15677539fc8140cf53 before b14e7260bb691d7f563f61da07d61e3c8b59a614; affected da7141fb78db915680616e15677539fc8140cf53 before 19cfeba0e4b8eda51484fcf8cf7d150418e1d880; affected da7141fb78db915680616e15677539fc8140cf53 before 8c6e43b3d5f109cf9c61bc188fcc8175404e924f; affected da7141fb78db915680616e15677539fc8140cf53 before 962562d4c70c5cdeb4e955d63ff2017c4eca1aad; affected da7141fb78db915680616e15677539fc8140cf53 before 683408258917541bdb294cd717c210a04381931e |
| Linux / Linux | affected 3.17; unaffected 0 before 3.17; unaffected 4.19.322 through 4.19.*; unaffected 5.4.284 through 5.4.*; unaffected 5.10.226 through 5.10.*; unaffected 5.15.167 through 5.15.*; unaffected 6.1.110 through 6.1.*; unaffected 6.6.51 through 6.6.*; unaffected 6.10.10 through 6.10.*; unaffected 6.11 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/b90beafac05931cbfcb6b1bd4f67c1923f47040e
- https://git.kernel.org/stable/c/ba97ba173f9625d5f34a986088979eae8b80d38e
- https://git.kernel.org/stable/c/157c0d94b4c40887329418c70ef4edd1a8d6b4ed
- https://git.kernel.org/stable/c/b14e7260bb691d7f563f61da07d61e3c8b59a614
- https://git.kernel.org/stable/c/19cfeba0e4b8eda51484fcf8cf7d150418e1d880
- https://git.kernel.org/stable/c/8c6e43b3d5f109cf9c61bc188fcc8175404e924f
- https://git.kernel.org/stable/c/962562d4c70c5cdeb4e955d63ff2017c4eca1aad
- https://git.kernel.org/stable/c/683408258917541bdb294cd717c210a04381931e
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.