smb: client: prevent races in ->query_interfaces()
Summary
| CVE | CVE-2026-43239 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-06 12:16:44 UTC |
| Updated | 2026-05-12 18:53:28 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 8.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.000430000 probability, percentile 0.131380000 (date 2026-05-12)
Problem Types: NVD-CWE-noinfo
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected aa45dadd34e44fcd6a9df4b395bee5b5633b4cec 93e8e3ee165ae4609a1222b516b573837103d2c3 git | Not specified |
| CNA | Linux | Linux | affected aa45dadd34e44fcd6a9df4b395bee5b5633b4cec ab6564f416a6eaf1199200b6100952407b438f7d git | Not specified |
| CNA | Linux | Linux | affected aa45dadd34e44fcd6a9df4b395bee5b5633b4cec 6287eefaf21ec805d42f941bd368018cf397a7f5 git | Not specified |
| CNA | Linux | Linux | affected aa45dadd34e44fcd6a9df4b395bee5b5633b4cec 76cc4faba0343c6db945b8dc75425b33d633e1b8 git | Not specified |
| CNA | Linux | Linux | affected aa45dadd34e44fcd6a9df4b395bee5b5633b4cec c3c06e42e1527716c54f3ad2ced6a034b5f3a489 git | Not specified |
| CNA | Linux | Linux | affected 5.19 | Not specified |
| CNA | Linux | Linux | unaffected 5.19 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.128 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.75 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.16 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.19.6 6.19.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/76cc4faba0343c6db945b8dc75425b33d633e1b8 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/6287eefaf21ec805d42f941bd368018cf397a7f5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/93e8e3ee165ae4609a1222b516b573837103d2c3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/c3c06e42e1527716c54f3ad2ced6a034b5f3a489 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/ab6564f416a6eaf1199200b6100952407b438f7d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.