Hello, syzbot found the following issue on: HEAD commit: d4ddefee5160 Merge tag 'arm64-fixes' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1653bc65a80000 kernel config: https://syzkaller.appspot.com/x/.config?x=aa796b6080b04102 dashboard link: https://syzkaller.appspot.com/bug?extid=1f16507d9ec05f64210a compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13e59507a80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16cd6137a80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/6187f26c7496/disk-d4ddefee.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8bb63089fdb5/vmlinux-d4ddefee.xz kernel image: https://storage.googleapis.com/syzbot-assets/1579fb12e27b/bzImage-d4ddefee.xz The issue was bisected to: commit d15121be7485655129101f3960ae6add40204463 Author: Paolo Abeni <pabeni@xxxxxxxxxx> Date: Mon May 8 06:17:44 2023 +0000 Revert "softirq: Let ksoftirqd do its job" bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=115fece3a80000 final oops: https://syzkaller.appspot.com/x/report.txt?x=135fece3a80000 console output: https://syzkaller.appspot.com/x/log.txt?x=155fece3a80000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+1f16507d9ec05f64210a@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: d15121be7485 ("Revert "softirq: Let ksoftirqd do its job"") INFO: task syz-executor296:5042 blocked for more than 143 seconds. Not tainted 6.5.0-rc6-syzkaller-00200-gd4ddefee5160 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor296 state:D stack:24336 pid:5042 ppid:5038 flags:0x00004002 Call Trace: <TASK> context_switch kernel/sched/core.c:5381 [inline] __schedule+0xee1/0x59f0 kernel/sched/core.c:6710 schedule+0xe7/0x1b0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747 wiphy_lock include/net/cfg80211.h:5776 [inline] reg_process_self_managed_hints+0x78/0x170 net/wireless/reg.c:3181 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
