Home/CVE/In the Linux kernel, the following vulnerability has been resolved: smb: client: prevent races in -query_interfaces()
CVE

CVE-2026-43239

In the Linux kernel, the following vulnerability has been resolved: 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.

HIGH · CVSS 8.8 EPSS 0.00043
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
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Affected Products & Versions

5
linux kernel>= 5.19.1 and < 6.6.128
linux kernel>= 6.7 and < 6.12.75
linux kernel>= 6.13 and < 6.18.16
linux kernel>= 6.19 and < 6.19.6
linux kernelall versions
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 May 2026 · 12:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://git.kernel.org/stable/c/6287eefaf21ec805d42f941bd368018cf397a7f5Patch
https://git.kernel.org/stable/c/76cc4faba0343c6db945b8dc75425b33d633e1b8Patch
https://git.kernel.org/stable/c/93e8e3ee165ae4609a1222b516b573837103d2c3Patch
https://git.kernel.org/stable/c/ab6564f416a6eaf1199200b6100952407b438f7dPatch
https://git.kernel.org/stable/c/c3c06e42e1527716c54f3ad2ced6a034b5f3a489Patch
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