CVE-2024-47673: wifi: iwlwifi: mvm: pause TCM when the firmware is stopped

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-09 · updated 2026-06-17

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

Affected products

Linux kernel: before 6.1.112; from 6.2 before 6.6.53; from 6.7 before 6.10.12; 6.11-rc1, 6.11-rc2, 6.11-rc3, 6.11-rc4, 6.11-rc5 — fixed in 6.1.112, 6.10.12, 6.6.53

How to fix

Upgrade to a fixed version: Linux kernel 6.1.112, 6.10.12, 6.6.53. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2024-47673 or the next vulnerability affects your stack