CVE-2026-89998
dm: fix race when loading and unloading a table
CVSS Score
0.0
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 |
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Affected Versions
Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b02e35b81176c7d61dd441cc7a2e5c324a82444b 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0ea6e5ad4a5817e91f11b4cc1e022e575ed2e7ca 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a1af1884c960b98c621b6fe2fea1216b78c02152 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < af1f32ccf8051f4691ced11feb452b9d13561727 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 00ad6f9ed27f91925d4d3fb7aab50a60d774f998 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5380c7f6335cc6d77eb77d065105e81155c4d9d3 0 < 6.1.188 0 < 6.6.157 0 < 6.12.110 0 < 6.18.51 0 < 7.2.5
Linux / Linux
All versions affected 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