CVE-2025-21930

wifi: iwlwifi: mvm: don't try to talk to a dead firmware

State: Published
Severity: 5.5 Medium
Published: Apr 1, 2025
Updated: May 11, 2026
Reserved: Dec 29, 2024

Description

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

wifi: iwlwifi: mvm: don't try to talk to a dead firmware

This fixes:

bad state = 0 WARNING: CPU: 10 PID: 702 at drivers/net/wireless/inel/iwlwifi/iwl-trans.c:178 iwl_trans_send_cmd+0xba/0xe0 [iwlwifi] Call Trace: <TASK> ? __warn+0xca/0x1c0 ? iwl_trans_send_cmd+0xba/0xe0 [iwlwifi 64fa9ad799a0e0d2ba53d4af93a53ad9a531f8d4] iwl_fw_dbg_clear_monitor_buf+0xd7/0x110 [iwlwifi 64fa9ad799a0e0d2ba53d4af93a53ad9a531f8d4] _iwl_dbgfs_fw_dbg_clear_write+0xe2/0x120 [iwlmvm 0e8adb18cea92d2c341766bcc10b18699290068a]

Ask whether the firmware is alive before sending a command.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	268712dc3b344f3a835211e5846e6ebfd7a13cbd to before 437e93ecd40754f9e938d524daf52a10c589e2d4Affected 268712dc3b344f3a835211e5846e6ebfd7a13cbd to before e7c31a3f4f27d61b9ccd894a7bf4690f137da0ecAffected 268712dc3b344f3a835211e5846e6ebfd7a13cbd to before d73d2c6e3313f0ba60711ab4f4b9044eddca9ca5Affected
LinuxLinux	6.8Affected before 6.8Not affected 6.12.19 through 6.12.Not affected 6.13.7 through 6.13.Not affected 6.14 and laterNot affected

References

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