CVE-2026-72089
accel/ivpu: Reject firmware log with size smaller than header
Description
In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Reject firmware log with size smaller than header fw_log_from_bo() validates the tracing buffer header_size and that the log fits within the BO, but never checks that log->size is at least log->header_size. fw_log_print_buffer() then computes: u32 data_size = log->size - log->header_size; which underflows to a near-U32_MAX value when firmware reports a log whose size is smaller than its header. That huge data_size defeats the log_start/log_end bounds clamps added by commit dd1311bcf0e6 ("accel/ivpu: Add bounds checks for firmware log indices"), so fw_log_print_lines() reads far past the small real data region of the BO. A size of 0 also makes fw_log_from_bo() advance the offset by 0, causing the callers to loop forever on the same header. Reject logs whose size is smaller than the header (which also rejects size == 0).
INFO
Published Date :
Aug. 15, 2026, 6:21 a.m.
Last Modified :
Aug. 17, 2026, 6:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Apply the kernel patch that rejects logs smaller than the header.
- Ensure firmware reports correct log sizes.
- Validate firmware log header and size consistency.
- Update the Linux kernel to the latest version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72089.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72089 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72089
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72089 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72089 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': '5592a207e158b738d9c1d27f208dbbea13ae7606', 'versionType': 'git'}, {'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': 'dc9a1cda2e46d0254730a6f93cfe48532895f33c', 'versionType': 'git'}, {'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': '257321a1c036da417f5d9c47b95c7e58f62bf263', 'versionType': 'git'}, {'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': '6920e62be4c969a68ce4ebc59da68c6cbc9512e5', 'versionType': 'git'}, {'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': 'ddb44baed257560f192b145ed36cf8c0a412de47', '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': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/accel/ivpu/ivpu_fw_log.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': '5592a207e158b738d9c1d27f208dbbea13ae7606', 'versionType': 'git'}, {'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': 'dc9a1cda2e46d0254730a6f93cfe48532895f33c', 'versionType': 'git'}, {'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': '257321a1c036da417f5d9c47b95c7e58f62bf263', 'versionType': 'git'}, {'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': '6920e62be4c969a68ce4ebc59da68c6cbc9512e5', 'versionType': 'git'}, {'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': 'ddb44baed257560f192b145ed36cf8c0a412de47', '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': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/accel/ivpu/ivpu_fw_log.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': '5592a207e158b738d9c1d27f208dbbea13ae7606', 'versionType': 'git'}, {'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': 'dc9a1cda2e46d0254730a6f93cfe48532895f33c', 'versionType': 'git'}, {'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': '257321a1c036da417f5d9c47b95c7e58f62bf263', 'versionType': 'git'}, {'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': '6920e62be4c969a68ce4ebc59da68c6cbc9512e5', 'versionType': 'git'}, {'status': 'affected', 'version': 'd4e4257afa6ed5205eda993180401fc2c20e4b60', 'lessThan': 'ddb44baed257560f192b145ed36cf8c0a412de47', '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': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/accel/ivpu/ivpu_fw_log.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Reject firmware log with size smaller than header fw_log_from_bo() validates the tracing buffer header_size and that the log fits within the BO, but never checks that log->size is at least log->header_size. fw_log_print_buffer() then computes: u32 data_size = log->size - log->header_size; which underflows to a near-U32_MAX value when firmware reports a log whose size is smaller than its header. That huge data_size defeats the log_start/log_end bounds clamps added by commit dd1311bcf0e6 ("accel/ivpu: Add bounds checks for firmware log indices"), so fw_log_print_lines() reads far past the small real data region of the BO. A size of 0 also makes fw_log_from_bo() advance the offset by 0, causing the callers to loop forever on the same header. Reject logs whose size is smaller than the header (which also rejects size == 0). Added Reference https://git.kernel.org/stable/c/257321a1c036da417f5d9c47b95c7e58f62bf263 Added Reference https://git.kernel.org/stable/c/5592a207e158b738d9c1d27f208dbbea13ae7606 Added Reference https://git.kernel.org/stable/c/6920e62be4c969a68ce4ebc59da68c6cbc9512e5 Added Reference https://git.kernel.org/stable/c/dc9a1cda2e46d0254730a6f93cfe48532895f33c Added Reference https://git.kernel.org/stable/c/ddb44baed257560f192b145ed36cf8c0a412de47