AZL-104789
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-104789.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-104789
- Upstream
- Published
- 2026-09-25T11:17:18Z
- Modified
- 2026-09-26T14:16:05Z
- Summary
- CVE-2026-97916 affecting package kernel 6.6.157.1-1
- Details
-
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.
- References