CVE-2026-80797
N/AIn the Linux kernel, the following vulnerability has been resolved: nfc: pn533: purge fragmented skbs during cleanup pn53x_common_clean() purges resp_q before freeing the common PN533 state, but it leaves fragment_skb untouched. The fragmentation helpers queue transmit fragments there while sending large initiator or target-mode frames, and those skbs remain owned by the driver until they are sent or discarded. If the device is removed while fragments are still queued, the common cleanup path frees the PN533 state without releasing the queued fragment skbs, leaking them. Purge fragment_skb during cleanup alongside resp_q.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
—EPSS not yet scored
Impact if exploited
—CVSS · not scored
- No impact metrics
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-80797/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-80797/poc.json
References
Technical & other
- https://git.kernel.org/stable/c/130b5ad4492f8e53d0398ee3af2b0e2388504d11
- https://git.kernel.org/stable/c/9319c3c4962efc8697246b563ea31c6d47f085aa
- https://git.kernel.org/stable/c/d63e85c5d5555fe6aa65155d3a09452597e163c3
- https://git.kernel.org/stable/c/4a52ec2457ff8c26206fcc20fa1972cc35a678c4
- https://git.kernel.org/stable/c/e169277281373818ae1cedf976aa1e99118fb77d
- https://git.kernel.org/stable/c/2f5d093194ec24d7c29b91bf7df014924e0f4ea1
- https://git.kernel.org/stable/c/e7ed2ea5590fbe2d3be39ee4fb0c758a12e31d0c
- https://git.kernel.org/stable/c/e95beff58b38c871c557bf84e528408283c2c0ad
- https://git.kernel.org/stable/c/5718fc62198c38c2de5316020a90506f9e75e0bb