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Vulnerability record · CVE-2026-43239 · published 6 May 2026

CVE-2026-43239: Linux kernel vulnerability

Linux · Linux Kernel

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.

8.8 CVSS 3.1 High EPSS 0.35% · top 73.5%
8.8CVSS 3.1 base score
0.35%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/6287eefaf21ec805d42f941bd368018cf397a7f5 Patch
https://git.kernel.org/stable/c/76cc4faba0343c6db945b8dc75425b33d633e1b8 Patch
https://git.kernel.org/stable/c/93e8e3ee165ae4609a1222b516b573837103d2c3 Patch
https://git.kernel.org/stable/c/ab6564f416a6eaf1199200b6100952407b438f7d Patch
https://git.kernel.org/stable/c/c3c06e42e1527716c54f3ad2ced6a034b5f3a489 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-43239), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.