CVE-2025-21930: wifi: iwlwifi: mvm: don't try to talk to a dead firmware
First published: Tue Apr 01 2025(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=6.8<6.12.19 | |
| Linux Kernel | >=6.13<6.13.7 | |
| Linux Kernel | =6.14-rc1 | |
| Linux Kernel | =6.14-rc2 | |
| Linux Kernel | =6.14-rc3 | |
| Linux Kernel | =6.14-rc4 | |
| Linux Kernel | =6.14-rc5 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-21930?
CVE-2025-21930 has been classified as a medium severity vulnerability.
How do I fix CVE-2025-21930?
To fix CVE-2025-21930, update your Linux kernel to the latest version provided by your distribution.
Which software is affected by CVE-2025-21930?
CVE-2025-21930 affects the Linux kernel, specifically the iwlwifi driver.
What type of vulnerability is CVE-2025-21930?
CVE-2025-21930 is a firmware communication issue within the iwlwifi module of the Linux kernel.
When was CVE-2025-21930 resolved?
CVE-2025-21930 was resolved in recent updates to the Linux kernel.
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