7.1

CVE-2026-72089: accel/ivpu: Reject firmware log with size smaller than header

Received
AliasesUBUNTU-CVE-2026-72089DEBIAN-CVE-2026-72089
Published 15-08-2026Last modified 17-08-2026

Vulnerability summary

CVE-2026-72089 is a high (CVSS 7.1) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 10
SUSE-SU-2026:5091-1USN-8886-1USN-8887-1USN-8887-2USN-8887-3USN-8888-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 17-08-2026
    Last modifiedVulnerability information updated.

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).

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.17% on 06-10-2026

06-10-202605-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu142 products
  • linuxAll versions (No fix recorded) | < 6.8.0-147.147 | < 7.0.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1067.70 | < 7.0.0-1014.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.12.100-1 | < 7.1.5-1
Linux1 product
  • linux≥ d4e4257afa6ed5205eda993180401fc2c20e4b60, < 5592a207e158b738d9c1d27f208dbbea13ae7606 | ≥ d4e4257afa6ed5205eda993180401fc2c20e4b60, < dc9a1cda2e46d0254730a6f93cfe48532895f33c | ≥ d4e4257afa6ed5205eda993180401fc2c20e4b60, < 257321a1c036da417f5d9c47b95c7e58f62bf263 | ≥ d4e4257afa6ed5205eda993180401fc2c20e4b60, < 6920e62be4c969a68ce4ebc59da68c6cbc9512e5 | ≥ d4e4257afa6ed5205eda993180401fc2c20e4b60, < ddb44baed257560f192b145ed36cf8c0a412de47 | 6.6

3 vendors · 144 products

References

18 links
Show all 18 references