octeontx2-pf: fix SQB pointer leak on init failure
Published Aug 15, 2026
5.5
MEDIUMCVSS 3.1
EPSS 0.22%
Description
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.
Affected products
-
Affected
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
-
Affected
- 5.6
Unaffected
- ≥ 0, < 5.6
- ≥ 5.10.266, ≤ 5.10.*
- ≥ 5.15.217, ≤ 5.15.*
- ≥ 6.1.184, ≤ 6.1.*
- ≥ 6.12.101, ≤ 6.12.*
- ≥ 6.18.40, ≤ 6.18.*
- ≥ 6.6.148, ≤ 6.6.*
- ≥ 7.1.5, ≤ 7.1.*
- 7.2
Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
| Vendor | Product | Default status | Versions |
|---|---|---|---|
| Linux | Linux | unaffected | Affected
|
| Linux | Linux | affected | Affected
Unaffected
|
No data.
No data.
Red Hat Enterprise Linux 10
kernel
Fix deferred
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Fix deferred
Red Hat Enterprise Linux 9
kernel-rt
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (14)
- https://access.redhat.com/security/cve/CVE-2026-72023 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2516311 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-58981 Advisory
- https://git.kernel.org/stable/c/148d7ec0a3a98839c320e6cdd112e2e88bfb091b
- https://git.kernel.org/stable/c/23d917acd9c9a9fd999688ec3fdde7aa58ab8a14
- https://git.kernel.org/stable/c/2cac2eac935ed7e0a9203204e036a1f6090ebc3d
- https://git.kernel.org/stable/c/42c2836f10ac0427dac9e9a923d6ee2189dec544
- https://git.kernel.org/stable/c/5df30f05db96552903680a17f858d250dfd9e86e
- https://git.kernel.org/stable/c/5e023fe2569e630ba23b5558ebe4bf4837af4d16
- https://git.kernel.org/stable/c/62e7df6d042aeebd5efb581074e28865c04477be
- https://git.kernel.org/stable/c/fca9c22633169a6c5d429a32e439121b6419e2be
- https://lore.kernel.org/linux-cve-announce/2026081510-CVE-2026-72023-c1c4@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2026-72023
- https://www.cve.org/CVERecord?id=CVE-2026-72023
Change history (0)
No recorded changes yet.
CVE.org / MITRE
CISA Vulnrichment
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GitHub
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