CVE-2026-46187wifi: rsi: fix kthread lifetime race between self-exit and external-stop
Updated under an hour ago ()
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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.
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In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: fix kthread lifetime race between self-exit and external-stop RSI driver use both self-exit(kthread_complete_and_exit) and external-stop (kthread_stop) when killing a kthread. Generally, kthread_stop() is called first, and in this case, no particular issues occur. However, in rare instances where kthread_complete_and_exit() is called first and then kthread_stop() is called, a UAF occurs because the kthread object, which has already exited and been freed, is accessed again. Therefore, to prevent this with minimal modification, you must remove kthread_stop() and change the code to wait until the self-exit operation is completed.
- CVSS
- 4.7 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:H/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) | 4c62764d0fc21a34ffc44eec1210038c3a2e4473 builds before 4ac3095da22fc50e51ec10c3b8323c21ab3e441a; from 4c62764d0fc21a34ffc44eec1210038c3a2e4473 before 9dfe8a4458a063c6433526bc59112a169eee1aa3; from 4c62764d0fc21a34ffc44eec1210038c3a2e4473 before 4f697813162d5f9151726a6d2bee82bffe4b0256; from 4c62764d0fc21a34ffc44eec1210038c3a2e4473 before 95fcb436586dc3c2983537d557ac05bbc6a027f3; from 4c62764d0fc21a34ffc44eec1210038c3a2e4473 before 16d9f674c619838bdeae42abc0929c9c5477ea1f; from 4c62764d0fc21a34ffc44eec1210038c3a2e4473 before 4f9a4ae8d2c198f01611ea376034c326ef43ab56; from 4c62764d0fc21a34ffc44eec1210038c3a2e4473 before 4f4c9b13c485abd0a2d2c97f9db339d1dd8e147f; from 4c62764d0fc21a34ffc44eec1210038c3a2e4473 before db57a1aa54ff68669781976e4edb045e09e2b65b; and 10 more ranges | 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 3.18.139 before 3.19; from 4.4.179 before 4.5; from 4.9.170 before 4.10; from 4.14.113 before 4.15; from 4.19.36 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; and 5 more ranges | NVD |
References
- https://git.kernel.org/stable/c/4ac3095da22fc50e51ec10c3b8323c21ab3e441apatch
- https://git.kernel.org/stable/c/9dfe8a4458a063c6433526bc59112a169eee1aa3patch
- https://git.kernel.org/stable/c/4f697813162d5f9151726a6d2bee82bffe4b0256patch
- https://git.kernel.org/stable/c/95fcb436586dc3c2983537d557ac05bbc6a027f3patch
- https://git.kernel.org/stable/c/16d9f674c619838bdeae42abc0929c9c5477ea1fpatch
- https://git.kernel.org/stable/c/4f9a4ae8d2c198f01611ea376034c326ef43ab56patch
- https://git.kernel.org/stable/c/4f4c9b13c485abd0a2d2c97f9db339d1dd8e147fpatch
- https://git.kernel.org/stable/c/db57a1aa54ff68669781976e4edb045e09e2b65bpatch
- 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.