CVE-2026-72023: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-72023DEBIAN-CVE-2026-72023
Published 15-08-2026Last modified 23-08-2026
Open JSON

Vulnerability summary

CVE-2026-72023 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.4% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.22%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 17 · Related 17
OPENSUSE-SU-2026:21910-1SUSE-SU-2026:23881-1SUSE-SU-2026:23887-1SUSE-SU-2026:23897-1SUSE-SU-2026:23902-1SUSE-SU-2026:24181-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 23-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: fix SQB pointer leak on init failure otx2_init_hw_resources() initializes SQ aura and pool resources before several later setup steps. On failure, err_free_sq_ptrs only frees SQB pages, leaving the per-SQ sqb_ptrs arrays behind. Use otx2_free_sq_res() for the SQ unwind path and let it free sqb_ptrs even when sq->sqe has not been allocated yet. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1.1. An x86_64 allyesconfig build showed no new warnings. As we do not have an OcteonTX2 PF device and the corresponding AF mailbox setup to test with, no runtime testing was able to be performed.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

+0.01 pp

From 0.21% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.22%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu157 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)
Debian2 products
  • linux< 6.1.187-1 | < 6.12.101-1 | < 7.1.5-1
  • linux-6.12< 6.12.101-1~deb12u1
Linux1 product
  • linux≥ caa2da34fd25a37e9fd43343b6966fb9d730a6d5, < fca9c22633169a6c5d429a32e439121b6419e2be | ≥ caa2da34fd25a37e9fd43343b6966fb9d730a6d5, < 42c2836f10ac0427dac9e9a923d6ee2189dec544 | ≥ caa2da34fd25a37e9fd43343b6966fb9d730a6d5, < 2cac2eac935ed7e0a9203204e036a1f6090ebc3d | ≥ caa2da34fd25a37e9fd43343b6966fb9d730a6d5, < 148d7ec0a3a98839c320e6cdd112e2e88bfb091b | ≥ caa2da34fd25a37e9fd43343b6966fb9d730a6d5, < 5e023fe2569e630ba23b5558ebe4bf4837af4d16 | ≥ caa2da34fd25a37e9fd43343b6966fb9d730a6d5, < 5df30f05db96552903680a17f858d250dfd9e86e | ≥ caa2da34fd25a37e9fd43343b6966fb9d730a6d5, < 23d917acd9c9a9fd999688ec3fdde7aa58ab8a14 | ≥ caa2da34fd25a37e9fd43343b6966fb9d730a6d5, < 62e7df6d042aeebd5efb581074e28865c04477be | 5.6

3 vendors · 160 products

References

20 links
Show all 20 references