Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: e1000: Move cancel_work_sync to avoid deadlock Previously, e1000_down called cancel_work_sync for the e1000 reset task (via e1000_down_and_stop), which takes RTNL. As reported by users and syzbot, a deadlock is possible in the following scenario: CPU 0: - RTNL is held - e1000_close - e1000_down - cancel_work_sync (cancel / wait for e1000_reset_task()) CPU 1: - process_one_work - e1000_reset_task - take RTNL To remedy this, avoid calling cancel_work_sync from e1000_down (e1000_reset_task does nothing if the device is down anyway). Instead, call cancel_work_sync for e1000_reset_task when the device is being removed.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e400c7444d84b0fd2ebb34e618f83abe05917543 before 1fd4438ddcc4958ed24662d5125114299e19bae4; affected e400c7444d84b0fd2ebb34e618f83abe05917543 before b4a8085ceefb7bbb12c2b71c55e71fc946c6929f |
| Linux / Linux | affected 6.13; unaffected 0 before 6.13; unaffected 6.15.3 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.