Bug 2356643 (CVE-2025-21930) - CVE-2025-21930 kernel: wifi: iwlwifi: mvm: don't try to talk to a dead firmware
Summary: CVE-2025-21930 kernel: wifi: iwlwifi: mvm: don't try to talk to a dead firmware
Keywords:
Status: NEW
Alias: CVE-2025-21930
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-04-01 16:04 UTC by OSIDB Bzimport
Modified: 2025-04-02 01:15 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2025-04-01 16:04:04 UTC 
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.
Comment 1 Robb Gatica 2025-04-02 01:11:08 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025040133-CVE-2025-21930-cc02@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.