watchdog: msc313e: Fix clock leak and spurious timer in settimeout()
In the Linux kernel, the following vulnerability has been resolved: watchdog: msc313e: Fix clock leak and spurious timer in settimeout() msc313e_wdt_settimeout() unconditionally calls msc313e_wdt_start() which introduces two severe bugs: 1. If the watchdog is already active, calling start() again will increase the reference count of the clock again. However stop() is only called once, the reference count is unbalance. 2. If the watchdog is stopped, calling settimeout() will start the hardware timer accidentally. Factor out the register-writing logic into a helper function. Only call it in settimeout() if the watchdog is running. Otherwise, simply update `wdev->timeout`.
CVE-2026-97969
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-2026-97969
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": "e9800b7994642a794afd4894f072541c14277ce8",
"lessThan": "68665016c7b777b44e27b6b0c1e6524c28ebe40a",
"versionType": "git"
},
{
"status": "affected",
"version": "e9800b7994642a794afd4894f072541c14277ce8",
"lessThan": "77ef2aa8b46876ca9935f32dd874c517ccf5d880",
"versionType": "git"
},
{
"status": "affected",
"version": "e9800b7994642a794afd4894f072541c14277ce8",
"lessThan": "a1dd0817776ea2a870ba2347001af13ddd4cb321",
"versionType": "git"
},
{
"status": "affected",
"version": "e9800b7994642a794afd4894f072541c14277ce8",
"lessThan": "2152a13ee2a9af09a668ebd053a8dbf771dadb80",
"versionType": "git"
},
{
"status": "affected",
"version": "e9800b7994642a794afd4894f072541c14277ce8",
"lessThan": "2abf99a57b0b71b2b97745981f4039370ab78044",
"versionType": "git"
},
{
"status": "affected",
"version": "e9800b7994642a794afd4894f072541c14277ce8",
"lessThan": "faf1eb2895c87a8c0fb920439dddc7e0d97c6a69",
"versionType": "git"
},
{
"status": "affected",
"version": "e9800b7994642a794afd4894f072541c14277ce8",
"lessThan": "3db30f315935c2fb0d95f46b7a593b5b4d3ec3d0",
"versionType": "git"
}
],
"programFiles": [
"drivers/watchdog/msc313e_wdt.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.14"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.14",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/watchdog/msc313e_wdt.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97969
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38105 · Revision 1
- Added to Heist Feed
- Publisher date