Re: [PATCH ath-next] wifi: ath11k: cancel SSR work items during PCI shutdown
From: Jeff Johnson
Date: Thu Apr 30 2026 - 17:35:58 EST
On Fri, 03 Apr 2026 21:30:50 -0700, Wei Zhang wrote:
> A reboot can crash the kernel if it overlaps with WLAN firmware crash
> recovery (SSR). The crash is a NULL pointer dereference in the MHI teardown
> path while freeing DMA-backed MHI contexts.
>
> Simplified trace:
> dma_free_attrs
> mhi_deinit_dev_ctxt [mhi]
> ath11k_pci_power_down [ath11k_pci]
> ath11k_pci_shutdown [ath11k_pci]
> device_shutdown
> kernel_restart
>
> [...]
Applied, thanks!
[1/1] wifi: ath11k: cancel SSR work items during PCI shutdown
commit: 8c79aac429b583301f387374ff37c59be671df87
Best regards,
--
Jeff Johnson <jeff.johnson@xxxxxxxxxxxxxxxx>