CVE-2026-97410
Low risk· EPSS 5%Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
In the Linux kernel, in netconsole, drop_netconsole_target() unlinked the target while only holding target_list_lock, while another thread (cleanup worker) could be iterating target_cleanup_list under target_cleanup_list_lock. This could lead to list corruption. The fix is to acquire target_cleanup_list_lock around list_del() to serialize the operations.
Risk Assessment
The vulnerability could lead to list corruption, potentially resulting in system crash or unpredictable behavior. This requires concurrent target removal and cleanup worker activity.
Recommendation
Install the Linux kernel update containing the fix for CVE-2026-97410. After updating, reboot the system.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: netconsole: take target_cleanup_list_lock in drop_netconsole_target() drop_netconsole_target() unlinks the target while only holding target_list_lock. However, when the underlying interface has been unregistered, netconsole_netdev_event() moves the target from target_list to target_cleanup_list, and netconsole_process_cleanups_core() walks that list under target_cleanup_list_lock only. If a user removes the configfs target at the same time the cleanup worker is iterating target_cleanup_list, list_del() can corrupt the list because the two paths take disjoint locks while operating on the same list node. Acquire target_cleanup_list_lock around the list_del() so the unlink is serialised against netconsole_process_cleanups_core() regardless of which list the target currently belongs to. The state transition that downgrades STATE_DEACTIVATED to STATE_DISABLED is left intact and is performed under the same combined locking, preserving the existing ordering with resume_target().
Vulnerability data from NVD (NIST) · CISA KEV · EPSS