CVE-2026-72023

octeontx2-pf: fix SQB pointer leak on init failure

State: Published
Severity: Not scored
Published: Aug 15, 2026
Updated: Aug 23, 2026
Reserved: Aug 9, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before fca9c22633169a6c5d429a32e439121b6419e2beAffected caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 42c2836f10ac0427dac9e9a923d6ee2189dec544Affected caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 2cac2eac935ed7e0a9203204e036a1f6090ebc3dAffected caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 148d7ec0a3a98839c320e6cdd112e2e88bfb091bAffected caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 5e023fe2569e630ba23b5558ebe4bf4837af4d16Affected caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 5df30f05db96552903680a17f858d250dfd9e86eAffected caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 23d917acd9c9a9fd999688ec3fdde7aa58ab8a14Affected caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 62e7df6d042aeebd5efb581074e28865c04477beAffected
LinuxLinux	5.6Affected before 5.6Not affected 5.10.266 through 5.10.Not affected 5.15.217 through 5.15.Not affected 6.1.184 through 6.1.Not affected 6.6.148 through 6.6.Not affected 6.12.101 through 6.12.Not affected 6.18.40 through 6.18.Not affected 7.1.5 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before fca9c22633169a6c5d429a32e439121b6419e2beAffected
caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 42c2836f10ac0427dac9e9a923d6ee2189dec544Affected
caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 2cac2eac935ed7e0a9203204e036a1f6090ebc3dAffected
caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 148d7ec0a3a98839c320e6cdd112e2e88bfb091bAffected
caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 5e023fe2569e630ba23b5558ebe4bf4837af4d16Affected
caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 5df30f05db96552903680a17f858d250dfd9e86eAffected
caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 23d917acd9c9a9fd999688ec3fdde7aa58ab8a14Affected
caa2da34fd25a37e9fd43343b6966fb9d730a6d5 to before 62e7df6d042aeebd5efb581074e28865c04477beAffected

LinuxLinux

5.6Affected
before 5.6Not affected
5.10.266 through 5.10.*Not affected
5.15.217 through 5.15.*Not affected
6.1.184 through 6.1.*Not affected
6.6.148 through 6.6.*Not affected
6.12.101 through 6.12.*Not affected
6.18.40 through 6.18.*Not affected
7.1.5 through 7.1.*Not affected
7.2 and laterNot affected

References

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