Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
d0bcb10e7b94861c714ab1e62c98bf8abaa37527 to < 481fff9bda01720c70b19fb260808145a3f21594affectedd0bcb10e7b94861c714ab1e62c98bf8abaa37527 to < 34a505071d1ffc5ebf3dc3cd16d2a12b044bcc84affectedd0bcb10e7b94861c714ab1e62c98bf8abaa37527 to < b1596e212ab1739930b25b9d3daf6b5cd307b537affectedd0bcb10e7b94861c714ab1e62c98bf8abaa37527 to < e779df4806cd29cbcca5c9dc0a1073662c76b889affected
Linux Linux
Default version status: affected
6.11affected0 to < 6.11unaffected6.12.109 to ≤ 6.12.*unaffected6.18.50 to ≤ 6.18.*unaffected7.2.4 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected