CVE-2025-38151

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux51003b2c872c63d28bcf5fbcc52cf7b05615f7b7 < 1ac40736c8c4255d8417b937c9715b193f4a87b3affected
LinuxLinuxc2b169fc7a12665d8a675c1ff14bca1b9c63fb9a < ac7897c0124066b9705ffca252a3662d54fc0c9baffected
LinuxLinuxd23fd7a539ac078df119707110686a5b226ee3bb < 02e45168e0fd6fdc6f8f7c42c4b500857aa5efb0affected
LinuxLinux45f5dcdd049719fb999393b30679605f16ebce14 < 8b05aa3692e45b8249379dc52b14acc6a104d2e5affected
LinuxLinux45f5dcdd049719fb999393b30679605f16ebce14 < 92a251c3df8ea1991cd9fe00f1ab0cfce18d7711affected
LinuxLinuxb172a4a0de254f1fcce7591833a9a63547c2f447affected
LinuxLinux6.1.135 < 6.1.142affected
LinuxLinux6.6.88 < 6.6.94affected
LinuxLinux6.12.25 < 6.12.34affected
LinuxLinux6.14.4 < 6.15affected
LinuxLinux6.15affected
LinuxLinux0 < 6.15unaffected
LinuxLinux6.1.142 <= 6.1.*unaffected
LinuxLinux6.6.94 <= 6.6.*unaffected
LinuxLinux6.12.34 <= 6.12.*unaffected
LinuxLinux6.15.3 <= 6.15.*unaffected
LinuxLinux6.16 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References