CVE-2026-80940

CVE CVE-2026-80940EUVD EUVD-2026-76263Published 2026-09-11T19:42:13.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: pci: fix resource leak on failed NAPI setup rtw_pci_probe() allocates PCI resources through rtw_pci_setup_resource() before it sets up NAPI. If rtw_pci_napi_init() fails, the error path jumps straight to err_pci_declaim and skips rtw_pci_destroy(), leaving the PCI resources allocated by rtw_pci_setup_resource() behind. Add a dedicated cleanup label for the NAPI setup failure path so probe destroys the PCI resources. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing current mainline kernels. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc7. An x86_64 allyesconfig build showed no new warnings. As we do not have a suitable rtw88 PCI board to test with, no runtime testing was able to be performed.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 0; patch: 6.18.50; d0bcb10e7b94861c714ab1e62c98bf8abaa37527 <481fff9bda01720c70b19fb260808145a3f21594; d0bcb10e7b94861c714ab1e62c98bf8abaa37527 <e779df4806cd29cbcca5c9dc0a1073662c76b889; d0bcb10e7b94861c714ab1e62c98bf8abaa37527 <34a505071d1ffc5ebf3dc3cd16d2a12b044bcc84; patch: 6.12.109; 6.11; patch: 7.3-rc1; d0bcb10e7b94861c714ab1e62c98bf8abaa37527 <b1596e212ab1739930b25b9d3daf6b5cd307b537; patch: 7.2.4

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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