CVE-2026-98081btrfs: zoned: finish active block group cleanup if call_zone_finish() fails
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: btrfs: zoned: finish active block group cleanup if call_zone_finish() fails do_zone_finish() clears BLOCK_GROUP_FLAG_ZONE_IS_ACTIVE before finishing the zones. If call_zone_finish() then fails it returned early, leaving the now inactive block group on fs_info->zone_active_bgs, leaking its reference, the BTRFS_FS_NEED_ZONE_FINISH waiters are never woken, and as its alloc_offset equals the zone capacity btrfs_zone_finish_one_bg() keeps selecting it, spinning btrfs_zoned_activate_one_bg(). Fall through to the cleanup on failure too and return the error, but keep the block group read-only as its zones are left inconsistent.
- CVSS
- Not yet scored
- 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
- Undergoing Analysis
- Record last updated
- Sep 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from d70cbdda75da3f258118a558c087157e073229fb before 36b9cdab44848f25879ca625275c92b007f84653; from d70cbdda75da3f258118a558c087157e073229fb before 40370f02a1ca3760f8925ffcbe76eb4d91ea758d; from d70cbdda75da3f258118a558c087157e073229fb before e1b168a53174b385e3548bfbd079513b22ac240c; from d70cbdda75da3f258118a558c087157e073229fb before a18a6b93a2843b9d103d3456bbd4b3f90282a379 | CNA record |
References
- https://git.kernel.org/stable/c/36b9cdab44848f25879ca625275c92b007f84653
- https://git.kernel.org/stable/c/40370f02a1ca3760f8925ffcbe76eb4d91ea758d
- https://git.kernel.org/stable/c/e1b168a53174b385e3548bfbd079513b22ac240c
- https://git.kernel.org/stable/c/a18a6b93a2843b9d103d3456bbd4b3f90282a379
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.