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Vulnerability Change Records for CVE-2022-48705

Change History

New CVE Received by NIST 5/03/2024 2:15:08 PM

Action Type Old Value New Value
Added Description

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

wifi: mt76: mt7921e: fix crash in chip reset fail

In case of drv own fail in reset, we may need to run mac_reset several
times. The sequence would trigger system crash as the log below.

Because we do not re-enable/schedule "tx_napi" before disable it again,
the process would keep waiting for state change in napi_diable(). To
avoid the problem and keep status synchronize for each run, goto final
resource handling if drv own failed.

[ 5857.353423] mt7921e 0000:3b:00.0: driver own failed
[ 5858.433427] mt7921e 0000:3b:00.0: Timeout for driver own
[ 5859.633430] mt7921e 0000:3b:00.0: driver own failed
[ 5859.633444] ------------[ cut here ]------------
[ 5859.633446] WARNING: CPU: 6 at kernel/kthread.c:659 kthread_park+0x11d
[ 5859.633717] Workqueue: mt76 mt7921_mac_reset_work [mt7921_common]
[ 5859.633728] RIP: 0010:kthread_park+0x11d/0x150
[ 5859.633736] RSP: 0018:ffff8881b676fc68 EFLAGS: 00010202
......
[ 5859.633766] Call Trace:
[ 5859.633768]  <TASK>
[ 5859.633771]  mt7921e_mac_reset+0x176/0x6f0 [mt7921e]
[ 5859.633778]  mt7921_mac_reset_work+0x184/0x3a0 [mt7921_common]
[ 5859.633785]  ? mt7921_mac_set_timing+0x520/0x520 [mt7921_common]
[ 5859.633794]  ? __kasan_check_read+0x11/0x20
[ 5859.633802]  process_one_work+0x7ee/0x1320
[ 5859.633810]  worker_thread+0x53c/0x1240
[ 5859.633818]  kthread+0x2b8/0x370
[ 5859.633824]  ? process_one_work+0x1320/0x1320
[ 5859.633828]  ? kthread_complete_and_exit+0x30/0x30
[ 5859.633834]  ret_from_fork+0x1f/0x30
[ 5859.633842]  </TASK>
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/f7f3001723e337568017e8617974f29bc8b2f595 [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/fa3fbe64037839f448dc569212bafc5a495d8219 [No types assigned]