CVE-2026-89770iomap: don't free integrity payload that doesn't exist
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: iomap: don't free integrity payload that doesn't exist fs_bio_integrity_alloc might not allocate a bio integrity payload if PI verification is disabled on the block device. Check for that case before calling fs_bio_integrity_free in iomap_bio_read_folio_range_sync to avoid a NULL pointer dereferences. Make the branch cover the PI verification as well - while fs_bio_integrity_verify works without an integrity payload, it requires one to actually do useful work.
- 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
- Received
- Record last updated
- Sep 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 0b10a370529cbd7b918c1eef43d409e43d9e0b78 before 65651f1001aa3638909bc58c7b2b46160692757b; from 0b10a370529cbd7b918c1eef43d409e43d9e0b78 before 8a8685b32c0718cc7b2cb4d6202e5a5b8e0a8e2d | CNA record |
References
- https://git.kernel.org/stable/c/65651f1001aa3638909bc58c7b2b46160692757b
- https://git.kernel.org/stable/c/8a8685b32c0718cc7b2cb4d6202e5a5b8e0a8e2d
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.