accel/ivpu: Validate firmware log buffer metadata
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.
CVE-2026-97916
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-97916
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "d4e4257afa6ed5205eda993180401fc2c20e4b60",
"lessThan": "07d4190d75021c38b7994045179aa29131634d4f",
"versionType": "git"
},
{
"status": "affected",
"version": "d4e4257afa6ed5205eda993180401fc2c20e4b60",
"lessThan": "8ec3d6972f1440fae6c8dadd1859892775208759",
"versionType": "git"
},
{
"status": "affected",
"version": "d4e4257afa6ed5205eda993180401fc2c20e4b60",
"lessThan": "40868f80a89199630b03d4457876f9a1feba0660",
"versionType": "git"
},
{
"status": "affected",
"version": "d4e4257afa6ed5205eda993180401fc2c20e4b60",
"lessThan": "b1555f63ee1a680f280bc18e8dac416f250e2ec3",
"versionType": "git"
},
{
"status": "affected",
"version": "d4e4257afa6ed5205eda993180401fc2c20e4b60",
"lessThan": "0724afc55c77c36c7feb9a7264b02aa7593c5c2d",
"versionType": "git"
}
],
"programFiles": [
"drivers/accel/ivpu/ivpu_fw_log.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/accel/ivpu/ivpu_fw_log.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97916
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48802 · Revision 1
- Added to Heist Feed
- Publisher date