time/namespace: Validate nanosecond field in proc_timens_set_offset()
In the Linux kernel, the following vulnerability has been resolved: time/namespace: Validate nanosecond field in proc_timens_set_offset() The function validates tv_sec to be within [-KTIME_SEC_MAX, KTIME_SEC_MAX] but never validates that tv_nsec is within the valid range of [0, NSEC_PER_SEC-1] before using it in timespec64_add(). timespec64_add() expects both timespec64 structures to have normalized values with tv_nsec in the range [0, 999999999]. If off->val.tv_nsec contains invalid values (negative or >= NSEC_PER_SEC), it could lead to incorrect calculations or unexpected behavior. Add validation to ensure tv_nsec is within the valid range before performing the addition.
CVE-2026-93146
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-2026-93146
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": "04a8682a71becdb639ec9c0d82b315a2baef7a5d",
"lessThan": "5b8a40de738b7c4896c2edbc6262bd1b3462ded0",
"versionType": "git"
},
{
"status": "affected",
"version": "04a8682a71becdb639ec9c0d82b315a2baef7a5d",
"lessThan": "b20d7085ab314672447322c10cc5d1ba443e3b8e",
"versionType": "git"
},
{
"status": "affected",
"version": "04a8682a71becdb639ec9c0d82b315a2baef7a5d",
"lessThan": "db667d2970c756cc7b483f45f272440f845a665b",
"versionType": "git"
},
{
"status": "affected",
"version": "04a8682a71becdb639ec9c0d82b315a2baef7a5d",
"lessThan": "1f0c3c0c36c7aedf55a60d9c71c4bd258b8937ce",
"versionType": "git"
},
{
"status": "affected",
"version": "04a8682a71becdb639ec9c0d82b315a2baef7a5d",
"lessThan": "06aba58e58492d2b8eae059274caed29025ea96e",
"versionType": "git"
}
],
"programFiles": [
"kernel/time/namespace.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"kernel/time/namespace.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-93146
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48718 · Revision 1
- Added to Heist Feed
- Publisher date