syzbot


WARNING: still has locks held in nl80211_set_cqm

Status: auto-obsoleted due to no activity on 2024/03/17 09:52
Reported-by: syzbot+ad52fe0c058e7b2c7123@syzkaller.appspotmail.com
First crash: 361d, last: 361d

Sample crash report:
====================================
WARNING: syz-executor.2/18235 still has locks held!
6.1.66-syzkaller #0 Not tainted
------------------------------------
1 lock held by syz-executor.2/18235:
 #0: ffff0000d9910d40 (&wdev->mtx){+.+.}-{3:3}, at: wdev_lock net/wireless/core.h:231 [inline]
 #0: ffff0000d9910d40 (&wdev->mtx){+.+.}-{3:3}, at: nl80211_set_cqm_rssi net/wireless/nl80211.c:12654 [inline]
 #0: ffff0000d9910d40 (&wdev->mtx){+.+.}-{3:3}, at: nl80211_set_cqm+0x584/0xf1c net/wireless/nl80211.c:12744

stack backtrace:
CPU: 1 PID: 18235 Comm: syz-executor.2 Not tainted 6.1.66-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 print_held_locks_bug+0x104/0x150 kernel/locking/lockdep.c:6473
 debug_check_no_locks_held+0x5c/0x74 kernel/locking/lockdep.c:6479
 do_exit+0x11d4/0x1a88 kernel/exit.c:899
 do_group_exit+0x194/0x22c kernel/exit.c:1019
 get_signal+0x14a0/0x158c kernel/signal.c:2862
 do_signal arch/arm64/kernel/signal.c:1076 [inline]
 do_notify_resume+0x3ac/0x3474 arch/arm64/kernel/signal.c:1129
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/12/08 09:51 linux-6.1.y 6c6a6c7e211c 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING: still has locks held in nl80211_set_cqm
* Struck through repros no longer work on HEAD.