CVE-2026-89998
dm: fix race when loading and unloading a table
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 16, 2026 |
| Last Updated | Oct 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
773bfda35c9511734d7f898e2ee73cd60d2a3f38 < b02e35b81176c7d61dd441cc7a2e5c324a82444b 1a581b72169968f4154b5793828f3bc28b258b35 < 0ea6e5ad4a5817e91f11b4cc1e022e575ed2e7ca 1a581b72169968f4154b5793828f3bc28b258b35 < a1af1884c960b98c621b6fe2fea1216b78c02152 1a581b72169968f4154b5793828f3bc28b258b35 < af1f32ccf8051f4691ced11feb452b9d13561727 1a581b72169968f4154b5793828f3bc28b258b35 < 00ad6f9ed27f91925d4d3fb7aab50a60d774f998 1a581b72169968f4154b5793828f3bc28b258b35 < 5380c7f6335cc6d77eb77d065105e81155c4d9d3 600593707c239bb99486925d65540a5020bc1e58 6.1.2 < 6.1.188 6.0.16 < 6.1
Linux / Linux
6.2
References
git.kernel.org: https://git.kernel.org/stable/c/b02e35b81176c7d61dd441cc7a2e5c324a82444b git.kernel.org: https://git.kernel.org/stable/c/0ea6e5ad4a5817e91f11b4cc1e022e575ed2e7ca git.kernel.org: https://git.kernel.org/stable/c/a1af1884c960b98c621b6fe2fea1216b78c02152 git.kernel.org: https://git.kernel.org/stable/c/af1f32ccf8051f4691ced11feb452b9d13561727 git.kernel.org: https://git.kernel.org/stable/c/00ad6f9ed27f91925d4d3fb7aab50a60d774f998 git.kernel.org: https://git.kernel.org/stable/c/5380c7f6335cc6d77eb77d065105e81155c4d9d3