Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: padata: avoid UAF for reorder_work Although the previous patch can avoid ps and ps UAF for _do_serial, it can not avoid potential UAF issue for reorder_work. This issue can happen just as below: crypto_request crypto_request crypto_del_alg padata_do_serial ... padata_reorder // processes all remaining // requests then breaks while (1) { if (!padata) break; ... } padata_do_serial // new request added list_add // sees the new request queue_work(reorder_work) padata_reorder queue_work_on(squeue->work) ... <kworker context> padata_serial_worker // completes new request, // no more outstanding // requests crypto_del_alg // free pd <kworker context> invoke_padata_reorder // UAF of pd To avoid UAF for 'reorder_work', get 'pd' ref before put 'reorder_work' into the 'serial_wq' and put 'pd' ref until the 'serial_wq' finish.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected bbefa1dd6a6d53537c11624752219e39959d04fb before f4f1b1169fc3694f9bc3e28c6c68dbbf4cc744c0; affected bbefa1dd6a6d53537c11624752219e39959d04fb before 4c6209efea2208597dbd3e52dc87a0d1a8f2dbe1; affected bbefa1dd6a6d53537c11624752219e39959d04fb before 7000507bb0d2ceb545c0a690e0c707c897d102c2; affected bbefa1dd6a6d53537c11624752219e39959d04fb before 6f45ef616775b0ce7889b0f6077fc8d681ab30bc; affected bbefa1dd6a6d53537c11624752219e39959d04fb before 8ca38d0ca8c3d30dd18d311f1a7ec5cb56972cac; affected bbefa1dd6a6d53537c11624752219e39959d04fb before a54091c24220a4cd847d5b4f36d678edacddbaf0; affected bbefa1dd6a6d53537c11624752219e39959d04fb before dd7d37ccf6b11f3d95e797ebe4e9e886d0332600; affected b4c8ed0bf977760a206997b6429a7ac91978f440; affected e43d65719527043f1ef79ecba9d4ede58cbc7ffe; affected 5.4.19 before 5.5; affected 5.5.3 before 5.6 |
| Linux / Linux | affected 5.6; unaffected 0 before 5.6; unaffected 5.10.235 through 5.10.*; unaffected 5.15.179 through 5.15.*; unaffected 6.1.129 through 6.1.*; unaffected 6.6.76 through 6.6.*; unaffected 6.12.13 through 6.12.*; unaffected 6.13.2 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/f4f1b1169fc3694f9bc3e28c6c68dbbf4cc744c0
- https://git.kernel.org/stable/c/4c6209efea2208597dbd3e52dc87a0d1a8f2dbe1
- https://git.kernel.org/stable/c/7000507bb0d2ceb545c0a690e0c707c897d102c2
- https://git.kernel.org/stable/c/6f45ef616775b0ce7889b0f6077fc8d681ab30bc
- https://git.kernel.org/stable/c/8ca38d0ca8c3d30dd18d311f1a7ec5cb56972cac
- https://git.kernel.org/stable/c/a54091c24220a4cd847d5b4f36d678edacddbaf0
- https://git.kernel.org/stable/c/dd7d37ccf6b11f3d95e797ebe4e9e886d0332600
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
No English description supplied.