PT-2026-8166 · Linux · Linux Kernel
Published
2026-01-01
·
Updated
2026-04-25
·
CVE-2026-23171
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.19.0-rc6+
Description
The Linux kernel contained a use-after-free flaw within the bonding driver. This issue occurs due to enslave failure after a new slave is added to the array. Specifically, the new slave can be used for transmission immediately, but it may be freed by the enslave error cleanup path, leading to a use-after-free condition. The problem is easily reproducible with a simple xdp pass program and parallel execution of commands. The crash involves a general protection fault and KASAN detection of a wild-memory-access. The vulnerability is located in the
bond start xmit() function within the bonding module and netdev core pick tx function.Recommendations
Update to a version newer than 6.19.0-rc6+.
Exploit
Fix
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel