CVE-2026-43239
Not scored
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.
Exploit probability
0.4%
Published
May 6, 2026
Required by
Not available
Last source change
July 15, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2026-43239
View original source
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/6287eefaf21ec805d42f941bd368018cf397a7f5
- https://git.kernel.org/stable/c/76cc4faba0343c6db945b8dc75425b33d633e1b8
- https://git.kernel.org/stable/c/93e8e3ee165ae4609a1222b516b573837103d2c3
- https://git.kernel.org/stable/c/ab6564f416a6eaf1199200b6100952407b438f7d
- https://git.kernel.org/stable/c/c3c06e42e1527716c54f3ad2ced6a034b5f3a489
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43239.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-43239