HarborGuard / CVE
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HIGHCVE-2026-43239Published Modified CNA Linux

CVE-2026-43239: 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.

Metrics

CVSS v3.1
8.8
Severity
HIGH
Fixed in
0
Affected Products
2

Fix available

06.6.1286.12.756.18.166.19.66287eefaf21ec805d42f941bd368018cf397a7f57.076cc4faba0343c6db945b8dc75425b33d633e1b893e8e3ee165ae4609a1222b516b573837103d2c3ab6564f416a6eaf1199200b6100952407b438f7dc3c06e42e1527716c54f3ad2ced6a034b5f3a489
Affected packages
  • Linux / Linux
    < 93e8e3ee165ae4609a1222b516b573837103d2c3 (from aa45dadd34e44fcd6a9df4b395bee5b5633b4cec) · < ab6564f416a6eaf1199200b6100952407b438f7d (from aa45dadd34e44fcd6a9df4b395bee5b5633b4cec) · < 6287eefaf21ec805d42f941bd368018cf397a7f5 (from aa45dadd34e44fcd6a9df4b395bee5b5633b4cec) · < 76cc4faba0343c6db945b8dc75425b33d633e1b8 (from aa45dadd34e44fcd6a9df4b395bee5b5633b4cec) · < c3c06e42e1527716c54f3ad2ced6a034b5f3a489 (from aa45dadd34e44fcd6a9df4b395bee5b5633b4cec)
  • Linux / Linux
    5.19
    Fixed in 0, 6.6.128, 6.12.75, 6.18.16, 6.19.6, 7.0
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References