High 7.8Published Jul 24, 2026

CVE-2026-64224octeontx2-pf: fix double free in rvu_rep_rsrc_init()

Updated under an hour ago (Oct 27, 2026, 9:40 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: fix double free in rvu_rep_rsrc_init() rvu_rep_rsrc_init() allocates queue memory before calling otx2_init_hw_resources(). When hardware resource setup fails, otx2_init_hw_resources() already unwinds the partially initialized SQ, CQ, and aura state before returning an error. The representor error path then calls otx2_free_hw_resources() again and can free the same resources a second time. Fix this by splitting the cleanup labels so that a failure from otx2_init_hw_resources() only releases queue memory. Keep the otx2_free_hw_resources() call for failures that happen after hardware resource initialization completed successfully. 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-rc3. Runtime validation was not performed because reproducing this path requires OcteonTX2 representor hardware.

CVSS: 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Jul 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a before 8864b664d0443ecb8e56690e5546fcda5fe5e81b; from 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a before eb72a65f2bb2cc059e2ca5d83de01fdf3ea602ad; from 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a before e8fb3de2a8effcaf62bec2c56b93d8bb480371d1	CNA record
linux linux_kernel linux:linux_kernel	from 6.13 before 6.18.34; from 6.19 before 7.0.11; 7.1; 7.1; 7.1; 7.1	NVD

References

References

https://git.kernel.org/stable/c/8864b664d0443ecb8e56690e5546fcda5fe5e81b	patch
https://git.kernel.org/stable/c/eb72a65f2bb2cc059e2ca5d83de01fdf3ea602ad	patch
https://git.kernel.org/stable/c/e8fb3de2a8effcaf62bec2c56b93d8bb480371d1	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.