CVE-2026-89998dm: fix race when loading and unloading a table
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 773bfda35c9511734d7f898e2ee73cd60d2a3f38 before b02e35b81176c7d61dd441cc7a2e5c324a82444b; 1a581b72169968f4154b5793828f3bc28b258b35 builds before 0ea6e5ad4a5817e91f11b4cc1e022e575ed2e7ca; from 1a581b72169968f4154b5793828f3bc28b258b35 before a1af1884c960b98c621b6fe2fea1216b78c02152; from 1a581b72169968f4154b5793828f3bc28b258b35 before af1f32ccf8051f4691ced11feb452b9d13561727; 1a581b72169968f4154b5793828f3bc28b258b35 builds before 00ad6f9ed27f91925d4d3fb7aab50a60d774f998; from 1a581b72169968f4154b5793828f3bc28b258b35 before 5380c7f6335cc6d77eb77d065105e81155c4d9d3; 600593707c239bb99486925d65540a5020bc1e58; from 6.1.2 before 6.1.188; and 1 more ranges | CNA record |
References
- https://git.kernel.org/stable/c/b02e35b81176c7d61dd441cc7a2e5c324a82444b
- https://git.kernel.org/stable/c/0ea6e5ad4a5817e91f11b4cc1e022e575ed2e7ca
- https://git.kernel.org/stable/c/a1af1884c960b98c621b6fe2fea1216b78c02152
- https://git.kernel.org/stable/c/af1f32ccf8051f4691ced11feb452b9d13561727
- https://git.kernel.org/stable/c/00ad6f9ed27f91925d4d3fb7aab50a60d774f998
- https://git.kernel.org/stable/c/5380c7f6335cc6d77eb77d065105e81155c4d9d3
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.