CVE-2026-97916accel/ivpu: Validate firmware log buffer metadata
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: accel/ivpu: Validate firmware log buffer metadata The tracing log headers parsed by fw_log_print_buffer() reside in DMA-shared BOs that the NPU firmware can write to. fw_log_from_bo() validated log->header_size and log->size, but fw_log_print_buffer() re-read those same fields from shared memory afterwards, allowing a TOCTOU where firmware changes them between the check and the use, and making the host dereference out-of-bounds addresses while printing logs. Snapshot the validated values once with READ_ONCE() and pass them down explicitly in a new struct ivpu_fw_log_desc instead of re-reading them from the shared struct.
- 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
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from d4e4257afa6ed5205eda993180401fc2c20e4b60 before 8ec3d6972f1440fae6c8dadd1859892775208759; from d4e4257afa6ed5205eda993180401fc2c20e4b60 before 40868f80a89199630b03d4457876f9a1feba0660; from d4e4257afa6ed5205eda993180401fc2c20e4b60 before b1555f63ee1a680f280bc18e8dac416f250e2ec3; from d4e4257afa6ed5205eda993180401fc2c20e4b60 before 0724afc55c77c36c7feb9a7264b02aa7593c5c2d | CNA record |
References
- https://git.kernel.org/stable/c/8ec3d6972f1440fae6c8dadd1859892775208759
- https://git.kernel.org/stable/c/40868f80a89199630b03d4457876f9a1feba0660
- https://git.kernel.org/stable/c/b1555f63ee1a680f280bc18e8dac416f250e2ec3
- https://git.kernel.org/stable/c/0724afc55c77c36c7feb9a7264b02aa7593c5c2d
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.