wifi: rsi: fix kthread lifetime race between self-exit and external-stop
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.
CVE-2026-46187
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-46187
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
"lessThan": "4ac3095da22fc50e51ec10c3b8323c21ab3e441a",
"versionType": "git"
},
{
"status": "affected",
"version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
"lessThan": "9dfe8a4458a063c6433526bc59112a169eee1aa3",
"versionType": "git"
},
{
"status": "affected",
"version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
"lessThan": "4f697813162d5f9151726a6d2bee82bffe4b0256",
"versionType": "git"
},
{
"status": "affected",
"version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
"lessThan": "95fcb436586dc3c2983537d557ac05bbc6a027f3",
"versionType": "git"
},
{
"status": "affected",
"version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
"lessThan": "16d9f674c619838bdeae42abc0929c9c5477ea1f",
"versionType": "git"
},
{
"status": "affected",
"version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
"lessThan": "4f9a4ae8d2c198f01611ea376034c326ef43ab56",
"versionType": "git"
},
{
"status": "affected",
"version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
"lessThan": "4f4c9b13c485abd0a2d2c97f9db339d1dd8e147f",
"versionType": "git"
},
{
"status": "affected",
"version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
"lessThan": "db57a1aa54ff68669781976e4edb045e09e2b65b",
"versionType": "git"
},
{
"status": "affected",
"version": "d8f70ad66032363e3edceee81a7be2aaccb2d7f5",
"versionType": "git"
},
{
"status": "affected",
"version": "ec759c0015fb7d4f5c7cb5711d2c8905724c7983",
"versionType": "git"
},
{
"status": "affected",
"version": "c8ed05b1d8520f40395916438da9b38ce937a896",
"versionType": "git"
},
{
"status": "affected",
"version": "ad78e2e057ab8d914a2b5e3e6acf29c3c8a428a3",
"versionType": "git"
},
{
"status": "affected",
"version": "de1fd69b6541ff61177114d63af7ea719c426cf0",
"versionType": "git"
},
{
"status": "affected",
"version": "3.18.139",
"lessThan": "3.19",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.4.179",
"lessThan": "4.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.9.170",
"lessThan": "4.10",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.14.113",
"lessThan": "4.15",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.19.36",
"lessThan": "4.20",
"versionType": "semver"
}
],
"programFiles": [
"drivers/net/wireless/rsi/rsi_common.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.20"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.20",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.258",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.209",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.175",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.140",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.88",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.30",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.7",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/rsi/rsi_common.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-46187
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #28407 · Revision 1
- Added to Heist Feed
- Publisher date