CVE-2026-64224 is a vulnerability in Linux Kernel
Published on July 24, 2026
octeontx2-pf: fix double free in rvu_rep_rsrc_init()
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.
Products Associated with CVE-2026-64224
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Affected Versions
Linux:- Version 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a and below 8864b664d0443ecb8e56690e5546fcda5fe5e81b is affected.
- Version 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a and below eb72a65f2bb2cc059e2ca5d83de01fdf3ea602ad is affected.
- Version 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a and below e8fb3de2a8effcaf62bec2c56b93d8bb480371d1 is affected.
- Version 6.13 is affected.
- Before 6.13 is unaffected.
- Version 6.18.34, <= 6.18.* is unaffected.
- Version 7.0.11, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.