Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix use-after-free in gfs2_glock_shrink_scan The GLF_LRU flag is checked under lru_lock in gfs2_glock_remove_from_lru() to remove the glock from the lru list in __gfs2_glock_put(). On the shrink scan path, the same flag is cleared under lru_lock but because of cond_resched_lock(&lru_lock) in gfs2_dispose_glock_lru(), progress on the put side can be made without deleting the glock from the lru list. Keep GLF_LRU across the race window opened by cond_resched_lock(&lru_lock) to ensure correct behavior on both sides - clear GLF_LRU after list_del under lru_lock.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 6948c6bc17d666663a84c124b3176039e64a58f4 before 38ce329534500bf4ae71f81df6a37a406cf187b4; affected b568ed385a18c0ddbe41862b69088b636550a04f before 92869945cc5b78ee8a1ef90336fe070893e3458a; affected 762bb3528249604bc680a9df635e8995740176de before 0364742decb0f02bc183404868b82896f7992595; affected bac8520892812dada1ac93f27d96317470d24b1f before 094bf5670e762afa243d2c41a5c4ab71c7447bf4; affected 7881ef3f33bb80f459ea6020d1e021fc524a6348 before 86fd5b27db743a0ce0cc245e3a34813b2aa6ec1d; affected 7881ef3f33bb80f459ea6020d1e021fc524a6348 before a61156314b66456ab6a291ed5deba1ebd002ab3c; affected 7881ef3f33bb80f459ea6020d1e021fc524a6348 before e87ef30fe73e7e10d2c85bdcc778dcec24dca553; affected 7881ef3f33bb80f459ea6020d1e021fc524a6348 before 1ab19c5de4c537ec0d9b21020395a5b5a6c059b2; affected 1e7a416fb765c9072479dc424780c0937ba99270; affected dcbdbe13796ffa561510d2686a6318564e728bbd; affected 4.4.181 before 4.4.274; affected 4.9.180 before 4.9.274; affected 4.14.123 before 4.14.238; affected 4.19.47 before 4.19.196; affected 5.0.20 before 5.1; affected 5.1.6 before 5.2 |
| Linux / Linux | affected 5.2; unaffected 0 before 5.2; unaffected 4.4.274 through 4.4.*; unaffected 4.9.274 through 4.9.*; unaffected 4.14.238 through 4.14.*; unaffected 4.19.196 through 4.19.*; unaffected 5.4.127 through 5.4.*; unaffected 5.10.45 through 5.10.*; unaffected 5.12.12 through 5.12.*; unaffected 5.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/38ce329534500bf4ae71f81df6a37a406cf187b4
- https://git.kernel.org/stable/c/92869945cc5b78ee8a1ef90336fe070893e3458a
- https://git.kernel.org/stable/c/0364742decb0f02bc183404868b82896f7992595
- https://git.kernel.org/stable/c/094bf5670e762afa243d2c41a5c4ab71c7447bf4
- https://git.kernel.org/stable/c/86fd5b27db743a0ce0cc245e3a34813b2aa6ec1d
- https://git.kernel.org/stable/c/a61156314b66456ab6a291ed5deba1ebd002ab3c
- https://git.kernel.org/stable/c/e87ef30fe73e7e10d2c85bdcc778dcec24dca553
- https://git.kernel.org/stable/c/1ab19c5de4c537ec0d9b21020395a5b5a6c059b2
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/38ce329534500bf4ae71f81df6a37a406cf187b4
- https://git.kernel.org/stable/c/92869945cc5b78ee8a1ef90336fe070893e3458a
- https://git.kernel.org/stable/c/0364742decb0f02bc183404868b82896f7992595
- https://git.kernel.org/stable/c/094bf5670e762afa243d2c41a5c4ab71c7447bf4
- https://git.kernel.org/stable/c/86fd5b27db743a0ce0cc245e3a34813b2aa6ec1d
- https://git.kernel.org/stable/c/a61156314b66456ab6a291ed5deba1ebd002ab3c
- https://git.kernel.org/stable/c/e87ef30fe73e7e10d2c85bdcc778dcec24dca553
- https://git.kernel.org/stable/c/1ab19c5de4c537ec0d9b21020395a5b5a6c059b2