mptcp: fix scheduling with atomic in timestamp sockopt
In the Linux kernel, the following vulnerability has been resolved: mptcp: fix scheduling with atomic in timestamp sockopt Using lock_sock_fast() (atomic context) around sock_set_timestamp() and sock_set_timestamping() is unsafe, as both helpers can sleep. Replace lock_sock_fast() with sleepable lock_sock()/release_sock() to avoid scheduling while atomic panic.
CVE-2026-46168
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-2026-46168
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": "9061f24bf82ec2e92dd1e7c10b98b680db023d31",
"lessThan": "0949d8bbbedbafe0136a1723c41eb823c2f1e09d",
"versionType": "git"
},
{
"status": "affected",
"version": "9061f24bf82ec2e92dd1e7c10b98b680db023d31",
"lessThan": "e792cfb6aeaf65612cdf8e3ac431d65e66283654",
"versionType": "git"
},
{
"status": "affected",
"version": "9061f24bf82ec2e92dd1e7c10b98b680db023d31",
"lessThan": "ebeb70e29e37cfce899309cc2665a3bfe960ed94",
"versionType": "git"
},
{
"status": "affected",
"version": "9061f24bf82ec2e92dd1e7c10b98b680db023d31",
"lessThan": "b157dab93a7af44a84e78cf0cb311dde475cff5b",
"versionType": "git"
},
{
"status": "affected",
"version": "9061f24bf82ec2e92dd1e7c10b98b680db023d31",
"lessThan": "8a005fe451c73fd2b3d1faa5643c11e6bd07acfc",
"versionType": "git"
},
{
"status": "affected",
"version": "9061f24bf82ec2e92dd1e7c10b98b680db023d31",
"lessThan": "7eb513b42721bee4b96da69f6188d5a7783f210d",
"versionType": "git"
},
{
"status": "affected",
"version": "9061f24bf82ec2e92dd1e7c10b98b680db023d31",
"lessThan": "b5c52908d52c6c8eb8933264aa6087a0600fd892",
"versionType": "git"
}
],
"programFiles": [
"net/mptcp/sockopt.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": "5.15.209",
"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": [
"net/mptcp/sockopt.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-46168
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #28402 · Revision 1
- Added to Heist Feed
- Publisher date