CVE-2026-89998
7.8 HIGHPublished 2026-09-16 · Updated 2026-09-17
AI risk analysis
- Summary
- The vulnerability allows a race condition when loading and unloading a table in the Linux kernel, leading to potential access of invalid memory.
- Exploitability
- Exploitation requires concurrent table load ioctls, making it moderately difficult. Precondition is the presence of two concurrent ioctls calls.
- Blast radius
- If exploited, it could lead to a denial of service or potentially more severe consequences depending on the context.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Upgrade to the latest kernel version 6.2.10 or later.
Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.
NVD description
In the Linux kernel, the following vulnerability has been resolved: dm: fix race when loading and unloading a table If the userspace calls two concurrent table load ioctls and one of them succeeds and the other fails, there is a race condition because dm_setup_md_queue walks &md->table_devices without any lock. If the walk races with dm_table_destroy -> free_devices -> dm_put_table_device, there is access to invalid memory. Fix this race by extending the lock over the list walk.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://git.kernel.org/stable/c/00ad6f9ed27f91925d4d3fb7aab50a60d774f998
- https://git.kernel.org/stable/c/0ea6e5ad4a5817e91f11b4cc1e022e575ed2e7ca
- https://git.kernel.org/stable/c/5380c7f6335cc6d77eb77d065105e81155c4d9d3
- https://git.kernel.org/stable/c/a1af1884c960b98c621b6fe2fea1216b78c02152
- https://git.kernel.org/stable/c/af1f32ccf8051f4691ced11feb452b9d13561727
- https://git.kernel.org/stable/c/b02e35b81176c7d61dd441cc7a2e5c324a82444b
Data: NVD (public domain). Analysis: local $0 model. Defensive use only.