smb: client: prevent races in ->query_interfaces()
In the Linux kernel, the following vulnerability has been resolved: smb: client: prevent races in ->query_interfaces() It was possible for two query interface works to be concurrently trying to update the interfaces. Prevent this by checking and updating iface_last_update under iface_lock.
CVE-2026-43239
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-2026-43239
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": "aa45dadd34e44fcd6a9df4b395bee5b5633b4cec",
"lessThan": "93e8e3ee165ae4609a1222b516b573837103d2c3",
"versionType": "git"
},
{
"status": "affected",
"version": "aa45dadd34e44fcd6a9df4b395bee5b5633b4cec",
"lessThan": "ab6564f416a6eaf1199200b6100952407b438f7d",
"versionType": "git"
},
{
"status": "affected",
"version": "aa45dadd34e44fcd6a9df4b395bee5b5633b4cec",
"lessThan": "6287eefaf21ec805d42f941bd368018cf397a7f5",
"versionType": "git"
},
{
"status": "affected",
"version": "aa45dadd34e44fcd6a9df4b395bee5b5633b4cec",
"lessThan": "76cc4faba0343c6db945b8dc75425b33d633e1b8",
"versionType": "git"
},
{
"status": "affected",
"version": "aa45dadd34e44fcd6a9df4b395bee5b5633b4cec",
"lessThan": "c3c06e42e1527716c54f3ad2ced6a034b5f3a489",
"versionType": "git"
}
],
"programFiles": [
"fs/smb/client/smb2ops.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.19"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.19",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.128",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.75",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.16",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.6",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/smb/client/smb2ops.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-43239
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #40049 · Revision 1
- Added to Heist Feed
- Publisher date