CVE-2026-43239
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-362 · Race condition
- Record status
- Modified
Affected
- Linux Kernel < 6.6.128
- Linux Kernel < 6.12.75
- Linux Kernel < 6.18.16
- Linux Kernel < 6.19.6
- Linux Kernel 5.19
Attack profile CVSS 3.1 · 8.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Fix and advisories
- 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
References
- 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://git.kernel.org/stable/c/de3c1653510d566a245cc54ac4bb9e50ebc5faa8