Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations") leads a NULL pointer deference in cache_set_flush(). 1721 if (!IS_ERR_OR_NULL(c->root)) 1722 list_add(&c->root->list, &c->btree_cache); >From the above code in cache_set_flush(), if previous registration code fails before allocating c->root, it is possible c->root is NULL as what it is initialized. __bch_btree_node_alloc() never returns NULL but c->root is possible to be NULL at above line 1721. This patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 0729029e647234fa1a94376b6edffec5c2cd75f6 before 4379c5828492a4c2a651c8f826a01453bd2b80b0; affected db9439cef0b5efccf8021fe89f4953e0f901e85b before 336e30f32ae7c043fde0f6fa21586ff30bea9fe2; affected 991e9c186a8ac6ab272a86e0ddc6f9733c38b867 before fb5fee35bdd18316a84b5f30881a24e1415e1464; affected 68118c339c6e1e16ae017bef160dbe28a27ae9c8 before 5202391970ffbf81975251b3526b890ba027b715; affected 028ddcac477b691dd9205c92f991cc15259d033e before cc05aa2c0117e20fa25a3c0d915f98b8f2e78667; affected 028ddcac477b691dd9205c92f991cc15259d033e before 5e0e913624bcd24f3de414475018d3023f060ee1; affected 028ddcac477b691dd9205c92f991cc15259d033e before b2e382ae12a63560fca35050498e19e760adf8c0; affected fe75e8a0c20127a8dc95704f1a7ad6b82c9a0ef8; affected 0cabf9e164660e8d66c4810396046383a1110a69; affected 5.4.251 before 5.4.287; affected 5.10.188 before 5.10.231; affected 5.15.121 before 5.15.174; affected 6.1.39 before 6.1.120; affected 4.19.291 before 4.20; affected 6.4.4 before 6.5 |
| Linux / Linux | affected 6.5; unaffected 0 before 6.5; unaffected 5.4.287 through 5.4.*; unaffected 5.10.231 through 5.10.*; unaffected 5.15.174 through 5.15.*; unaffected 6.1.120 through 6.1.*; unaffected 6.6.66 through 6.6.*; unaffected 6.12.5 through 6.12.*; unaffected 6.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/4379c5828492a4c2a651c8f826a01453bd2b80b0
- https://git.kernel.org/stable/c/336e30f32ae7c043fde0f6fa21586ff30bea9fe2
- https://git.kernel.org/stable/c/fb5fee35bdd18316a84b5f30881a24e1415e1464
- https://git.kernel.org/stable/c/5202391970ffbf81975251b3526b890ba027b715
- https://git.kernel.org/stable/c/cc05aa2c0117e20fa25a3c0d915f98b8f2e78667
- https://git.kernel.org/stable/c/5e0e913624bcd24f3de414475018d3023f060ee1
- https://git.kernel.org/stable/c/b2e382ae12a63560fca35050498e19e760adf8c0
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
No English description supplied.