CVE-2026-89998
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux
PublishedSep 16, 2026
First seenSep 16, 2026
How to fix
Update
- Linux Linuxb02e35b81176c7d61dd441cc7a2e5c324a82444b, 0ea6e5ad4a5817e91f11b4cc1e022e575ed2e7ca, a1af1884c960b98c621b6fe2fea1216b78c02152, af1f32ccf8051f4691ced11feb452b9d13561727, 00ad6f9ed27f91925d4d3fb7aab50a60d774f998, 5380c7f6335cc6d77eb77d065105e81155c4d9d3, 6.1.188, 6.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 773bfda35c9511734d7f898e2ee73cd60d2a3f38 ≤ v < b02e35b81176c7d61dd441cc7a2e5c324a82444b, 1a581b72169968f4154b5793828f3bc28b258b35 ≤ v < 0ea6e5ad4a5817e91f11b4cc1e022e575ed2e7ca, 1a581b72169968f4154b5793828f3bc28b258b35 ≤ v < a1af1884c960b98c621b6fe2fea1216b78c02152, 1a581b72169968f4154b5793828f3bc28b258b35 ≤ v < af1f32ccf8051f4691ced11feb452b9d13561727, 1a581b72169968f4154b5793828f3bc28b258b35 ≤ v < 00ad6f9ed27f91925d4d3fb7aab50a60d774f998, 1a581b72169968f4154b5793828f3bc28b258b35 ≤ v < 5380c7f6335cc6d77eb77d065105e81155c4d9d3, 600593707c239bb99486925d65540a5020bc1e58, 6.1.2 ≤ v < 6.1.188, 6.0.16 ≤ v < 6.1, 6.2 | b02e35b81176c7d61dd441cc7a2e5c324a82444b, 0ea6e5ad4a5817e91f11b4cc1e022e575ed2e7ca, a1af1884c960b98c621b6fe2fea1216b78c02152, af1f32ccf8051f4691ced11feb452b9d13561727, 00ad6f9ed27f91925d4d3fb7aab50a60d774f998, 5380c7f6335cc6d77eb77d065105e81155c4d9d3, 6.1.188, 6.1 |
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