Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: Fix hang when cma_netevent_callback fails to queue_work The cited commit fixed a crash when cma_netevent_callback was called for a cma_id while work on that id from a previous call had not yet started. The work item was re-initialized in the second call, which corrupted the work item currently in the work queue. However, it left a problem when queue_work fails (because the item is still pending in the work queue from a previous call). In this case, cma_id_put (which is called in the work handler) is therefore not called. This results in a userspace process hang (zombie process). Fix this by calling cma_id_put() if queue_work fails.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 51003b2c872c63d28bcf5fbcc52cf7b05615f7b7 before 1ac40736c8c4255d8417b937c9715b193f4a87b3; affected c2b169fc7a12665d8a675c1ff14bca1b9c63fb9a before ac7897c0124066b9705ffca252a3662d54fc0c9b; affected d23fd7a539ac078df119707110686a5b226ee3bb before 02e45168e0fd6fdc6f8f7c42c4b500857aa5efb0; affected 45f5dcdd049719fb999393b30679605f16ebce14 before 8b05aa3692e45b8249379dc52b14acc6a104d2e5; affected 45f5dcdd049719fb999393b30679605f16ebce14 before 92a251c3df8ea1991cd9fe00f1ab0cfce18d7711; affected b172a4a0de254f1fcce7591833a9a63547c2f447; affected 6.1.135 before 6.1.142; affected 6.6.88 before 6.6.94; affected 6.12.25 before 6.12.34; affected 6.14.4 before 6.15 |
| Linux / Linux | affected 6.15; unaffected 0 before 6.15; unaffected 6.1.142 through 6.1.*; unaffected 6.6.94 through 6.6.*; unaffected 6.12.34 through 6.12.*; unaffected 6.15.3 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/1ac40736c8c4255d8417b937c9715b193f4a87b3
- https://git.kernel.org/stable/c/ac7897c0124066b9705ffca252a3662d54fc0c9b
- https://git.kernel.org/stable/c/02e45168e0fd6fdc6f8f7c42c4b500857aa5efb0
- https://git.kernel.org/stable/c/8b05aa3692e45b8249379dc52b14acc6a104d2e5
- https://git.kernel.org/stable/c/92a251c3df8ea1991cd9fe00f1ab0cfce18d7711
ADP enrichment
No English description supplied.