rtc: mpfs: fix unchecked devm_clk_get() error pointer in probe()
In the Linux kernel, the following vulnerability has been resolved: rtc: mpfs: fix unchecked devm_clk_get() error pointer in probe() devm_clk_get(&pdev->dev, "rtcref")'s return value was passed straight into clk_get_rate() without checking it for an error first, unlike the "rtc" clock a few lines above which is correctly checked with IS_ERR(). clk_get_rate() only guards against a NULL clk, not an error pointer: if (!clk) return 0; ... rate = clk_core_get_rate_recalc(clk->core); so if devm_clk_get() ever returns an error pointer here (for example ERR_PTR(-EPROBE_DEFER), which is the normal, expected outcome if the clkcfg clock-provider this RTC depends on has not registered its clocks yet by the time this driver probes), clk_get_rate() dereferences that error pointer instead of returning 0, crashing instead of letting probe defer. Capture the clock in the existing 'clk' local and check it with IS_ERR() before calling clk_get_rate(), matching the handling already used for the "rtc" clock in this same function.
CVE-2026-98825
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-2026-98825
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": "0b31d703598dc1993867597bbd45e87d824fc427",
"lessThan": "ab741d1b714b4acc605f3d14cdc4120f87341ed1",
"versionType": "git"
},
{
"status": "affected",
"version": "0b31d703598dc1993867597bbd45e87d824fc427",
"lessThan": "74dc7c52946e3d47c40edd0875adb7cc15937066",
"versionType": "git"
},
{
"status": "affected",
"version": "0b31d703598dc1993867597bbd45e87d824fc427",
"lessThan": "cfd70c9b19846c524f2b6195a7484bdf22071ccf",
"versionType": "git"
},
{
"status": "affected",
"version": "0b31d703598dc1993867597bbd45e87d824fc427",
"lessThan": "8a03f8422fa08eed335c51bccb612a3d81739ff2",
"versionType": "git"
},
{
"status": "affected",
"version": "0b31d703598dc1993867597bbd45e87d824fc427",
"lessThan": "ac41b05d15db3134e839148290d67415ee0bdb58",
"versionType": "git"
}
],
"programFiles": [
"drivers/rtc/rtc-mpfs.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/rtc/rtc-mpfs.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98825
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48993 · Revision 1
- Added to Heist Feed
- Publisher date