CVE-2026-31642
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix call removal to use RCU safe deletion Fix rxrpc call removal from the rxnet->calls list to use list_del_rcu() rather than list_del_init() to prevent stuffing up reading /proc/net/rxrpc/calls from potentially getting into an infinite loop. This, however, means that list_empty() no longer works on an entry that's been deleted from the list, making it harder to detect prior deletion. Fix this by: Firstly, make rxrpc_destroy_all_calls() only dump the first ten calls that are unexpectedly still on the list. Limiting the number of steps means there's no need to call cond_resched() or to remove calls from the list here, thereby eliminating the need for rxrpc_put_call() to check for that. rxrpc_put_call() can then be fixed to unconditionally delete the call from the list as it is the only place that the deletion occurs.
EPSS 0.02% · 3.4th percentile
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| linux | linux_kernel | 4.13, 4.13, 4.13 |
| Linux | Linux | 2baec2c3f854d1f79c7bb28386484e144e864a14, 2baec2c3f854d1f79c7bb28386484e144e864a14, 2baec2c3f854d1f79c7bb28386484e144e864a14 |
Timeline
- Apr 24, 2026 CVE Published
- Apr 24, 2026 Security Advisory
- Apr 27, 2026 Security Advisory
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score
- May 26, 2026 EPSS Score
References
- https://git.kernel.org/stable/c/93fc15be44a35b8e3c58d0238ac0d9b7c53465ff url
- https://git.kernel.org/stable/c/c63abf25203b50243fe228090526f9dbf37727bd url
- https://git.kernel.org/stable/c/3be718f659683ad89fad6f1eb66bee99727cae64 url
- https://git.kernel.org/stable/c/ac5f54691be06a32246179d41be2d73598036deb url
- https://git.kernel.org/stable/c/146d4ab94cf129ee06cd467cb5c71368a6b5bad6 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-31642 advisory
- https://lists.debian.org/debian-security-announce/2026/msg00154.html advisory
- https://lists.debian.org/debian-security-announce/2026/msg00148.html advisory