CVE-2026-43239smb: client: prevent races in ->query_interfaces()
Updated under an hour ago ()
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It affects Linux and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from aa45dadd34e44fcd6a9df4b395bee5b5633b4cec before 93e8e3ee165ae4609a1222b516b573837103d2c3; from aa45dadd34e44fcd6a9df4b395bee5b5633b4cec before ab6564f416a6eaf1199200b6100952407b438f7d; from aa45dadd34e44fcd6a9df4b395bee5b5633b4cec before 6287eefaf21ec805d42f941bd368018cf397a7f5; from aa45dadd34e44fcd6a9df4b395bee5b5633b4cec before 76cc4faba0343c6db945b8dc75425b33d633e1b8; from aa45dadd34e44fcd6a9df4b395bee5b5633b4cec before c3c06e42e1527716c54f3ad2ced6a034b5f3a489 | CNA record |
linux linux_kernel linux:linux_kernel | from 5.19.1 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.16; from 6.19 before 6.19.6; 5.19; 5.19; 5.19; 5.19; and 2 more ranges | NVD |
References
- https://git.kernel.org/stable/c/93e8e3ee165ae4609a1222b516b573837103d2c3patch
- https://git.kernel.org/stable/c/ab6564f416a6eaf1199200b6100952407b438f7dpatch
- https://git.kernel.org/stable/c/6287eefaf21ec805d42f941bd368018cf397a7f5patch
- https://git.kernel.org/stable/c/76cc4faba0343c6db945b8dc75425b33d633e1b8patch
- https://git.kernel.org/stable/c/c3c06e42e1527716c54f3ad2ced6a034b5f3a489patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.