Vulnerability CVE-2024-47673
Published: 2024-10-09

Description:
In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: mvm: pause TCM when the firmware is stopped

Not doing so will make us send a host command to the transport while the
firmware is not alive, which will trigger a WARNING.

bad state = 0
WARNING: CPU: 2 PID: 17434 at drivers/net/wireless/intel/iwlwifi/iwl-trans.c:115 iwl_trans_send_cmd+0x1cb/0x1e0 [iwlwifi]
RIP: 0010:iwl_trans_send_cmd+0x1cb/0x1e0 [iwlwifi]
Call Trace:
<TASK>
iwl_mvm_send_cmd+0x40/0xc0 [iwlmvm]
iwl_mvm_config_scan+0x198/0x260 [iwlmvm]
iwl_mvm_recalc_tcm+0x730/0x11d0 [iwlmvm]
iwl_mvm_tcm_work+0x1d/0x30 [iwlmvm]
process_one_work+0x29e/0x640
worker_thread+0x2df/0x690
? rescuer_thread+0x540/0x540
kthread+0x192/0x1e0
? set_kthread_struct+0x90/0x90
ret_from_fork+0x22/0x30

 References:
https://git.kernel.org/stable/c/5948a191906b54e10f02f6b7a7670243a39f99f4
https://git.kernel.org/stable/c/2c61b561baf92a2860c76c2302a62169e22c21cc
https://git.kernel.org/stable/c/55086c97a55d781b04a2667401c75ffde190135c
https://git.kernel.org/stable/c/0668ebc8c2282ca1e7eb96092a347baefffb5fe7
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