Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: Clear affinity hint before calling ath11k_pcic_free_irq() in error path If a shared IRQ is used by the driver due to platform limitation, then the IRQ affinity hint is set right after the allocation of IRQ vectors in ath11k_pci_alloc_msi(). This does no harm unless one of the functions requesting the IRQ fails and attempt to free the IRQ. This results in the below warning: WARNING: CPU: 7 PID: 349 at kernel/irq/manage.c:1929 free_irq+0x278/0x29c Call trace: free_irq+0x278/0x29c ath11k_pcic_free_irq+0x70/0x10c [ath11k] ath11k_pci_probe+0x800/0x820 [ath11k_pci] local_pci_probe+0x40/0xbc The warning is due to not clearing the affinity hint before freeing the IRQs. So to fix this issue, clear the IRQ affinity hint before calling ath11k_pcic_free_irq() in the error path. The affinity will be cleared once again further down the error path due to code organization, but that does no harm. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-05266-QCAHSTSWPLZ_V2_TO_X86-1
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e01b3400d641cb290742849331f0d22e1202538a before 8d0519f511d93d675f61d6bfb45ffcc945af4b14; affected d412d0ef300f28d698648cc7c19147ab413251fe before 7493b9baf0e54b44caae46715aaa409a84bd9f4b; affected 39564b475ac5a589e6c22c43a08cbd283c295d2c before 80dc5a2ce5b75d648e08549617f5c555d07ae43c; affected 39564b475ac5a589e6c22c43a08cbd283c295d2c before 3fc42cfcc6e336f25dee79b34e57c4a63cd652a5; affected 39564b475ac5a589e6c22c43a08cbd283c295d2c before 68410c5bd381a81bcc92b808e7dc4e6b9ed25d11; affected 5a9f55efa9333e3edb4826d945cfdd8356f6e269; affected 6.1.63 before 6.1.188; affected 6.6.2 before 6.6.157; affected 6.5.12 before 6.6 |
| Linux / Linux | affected 6.7; unaffected 0 before 6.7; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.59 through 6.12.*; unaffected 6.14.2 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/8d0519f511d93d675f61d6bfb45ffcc945af4b14
- https://git.kernel.org/stable/c/7493b9baf0e54b44caae46715aaa409a84bd9f4b
- https://git.kernel.org/stable/c/80dc5a2ce5b75d648e08549617f5c555d07ae43c
- https://git.kernel.org/stable/c/3fc42cfcc6e336f25dee79b34e57c4a63cd652a5
- https://git.kernel.org/stable/c/68410c5bd381a81bcc92b808e7dc4e6b9ed25d11