CVE-2026-31642rxrpc: Fix call removal to use RCU safe deletion
Updated under an hour ago ()
Does this affect you?
It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 2baec2c3f854d1f79c7bb28386484e144e864a14 before 3e47a38e584b905359fe0ce5be5165d1e8592a90; from 2baec2c3f854d1f79c7bb28386484e144e864a14 before b15b1ce96777b88989a6a4de8d01efbcd81ad2d7; from 2baec2c3f854d1f79c7bb28386484e144e864a14 before 280efb85e9759881a9d31d0874baa04583cb6c09; from 2baec2c3f854d1f79c7bb28386484e144e864a14 before 93fc15be44a35b8e3c58d0238ac0d9b7c53465ff; from 2baec2c3f854d1f79c7bb28386484e144e864a14 before c63abf25203b50243fe228090526f9dbf37727bd; from 2baec2c3f854d1f79c7bb28386484e144e864a14 before 3be718f659683ad89fad6f1eb66bee99727cae64; from 2baec2c3f854d1f79c7bb28386484e144e864a14 before ac5f54691be06a32246179d41be2d73598036deb; from 2baec2c3f854d1f79c7bb28386484e144e864a14 before 146d4ab94cf129ee06cd467cb5c71368a6b5bad6 | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
linux linux_kernel linux:linux_kernel | from 4.13.1 before 6.6.135; from 6.7 before 6.12.82; from 6.13 before 6.18.23; from 6.19 before 6.19.13; 4.13; 7.0; 7.0; 7.0; and 4 more ranges | NVD |
References
- https://git.kernel.org/stable/c/3e47a38e584b905359fe0ce5be5165d1e8592a90
- https://git.kernel.org/stable/c/b15b1ce96777b88989a6a4de8d01efbcd81ad2d7
- https://git.kernel.org/stable/c/280efb85e9759881a9d31d0874baa04583cb6c09
- https://git.kernel.org/stable/c/93fc15be44a35b8e3c58d0238ac0d9b7c53465ffpatch
- https://git.kernel.org/stable/c/c63abf25203b50243fe228090526f9dbf37727bdpatch
- https://git.kernel.org/stable/c/3be718f659683ad89fad6f1eb66bee99727cae64patch
- https://git.kernel.org/stable/c/ac5f54691be06a32246179d41be2d73598036debpatch
- https://git.kernel.org/stable/c/146d4ab94cf129ee06cd467cb5c71368a6b5bad6patch
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.