CVSS 7.8 · High EPSS 0,24%
Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 4.4.181 hingga sebelum 4.4.274 |
| linux | linux kernel | Versi 4.9.180 hingga sebelum 4.9.274 |
| linux | linux kernel | Versi 4.14.123 hingga sebelum 4.14.238 |
| linux | linux kernel | Versi 4.19.47 hingga sebelum 4.19.196 |
| linux | linux kernel | Versi 5.0.20 hingga sebelum 5.1 |
| linux | linux kernel | Versi 5.1.6 hingga sebelum 5.4.127 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.45 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.12.12 |
| linux | linux kernel | Versi 5.13 rc1 |
| linux | linux kernel | Versi 5.13 rc2 |
| linux | linux kernel | Versi 5.13 rc3 |
| linux | linux kernel | Versi 5.13 rc4 |