From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3C6E22CA8 for ; Mon, 6 Jan 2025 11:11:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736161890; cv=none; b=IYx2aI6KimsgRjM+HTLi9TosW90M6/1bucEEn1PWBSijH3OuYZ6l25kqECvb5Xzc1/uqBgL0dQnooApnbOXvRFfMGWwaoW49wnEPQymaX2lXmGyW7uVdYXY5LPHDwKD3XbAP6qnZoSsNs7g6bakEJO1W6Ps1fXN1EL3tA/dGhpg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736161890; c=relaxed/simple; bh=2EWABHNs/bZpsGlVlZS8aWWZbPQqRafTHBMG51M09bw=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=kn71F3hAZujf/5Uk86rYyFpEjLZKHCnbJ8lmkGeksehTvDcb54w7KHcchbJA4sW3b9YFuJTWeY3zaUT2jYjU/lE3ctofuCtLpNKZdyWj2+0ImBZGi9MDVJ6Kfph7OB9UTNquv+cBqqH35kLMvN6E9qCJ1E329AaR6w27NKMRhqk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.207 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f207.google.com with SMTP id e9e14a558f8ab-3a817e4aa67so139623715ab.2 for ; Mon, 06 Jan 2025 03:11:26 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1736161886; x=1736766686; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=SsGIPTz9eIy9lfHvu6R40/tcP5T45fc4LuCAacDKRGw=; b=Q8T6Ld9AcD+BFLx1wZjV6lTq+hIMJ771FEw8aybve4k085If5/gug9lO8Y44zf/MPB XiuZt6khSdst+7WpKrP2tMLXUzyqbWEhICtM3Mn8XAh1YYaAv6kwBxzuRmuoOcZe0oyS kIPWwUWFIX4/cRyRbqApeKIgRkl9oKa78H0HXUQG/spGAICUcjFT73Ri9M/InxYpuxOd 44uEW/trjwwgsw7ACJXTG5kmlMjpFgaJd1gC8nKPZcrsXbrdd35w4tSKO8GXFClHrWGD VPP1kALQ8NLgM4X71172a6+Yoe3BglBeObCoXACmNQz63r/bPFj+D16oHEVtJbTEJuiP wp7w== X-Forwarded-Encrypted: i=1; AJvYcCWXE7D/JDtM8m+yeVfEmf4HIlsQ8ES2Q2pxITy2TyUcqJV97V+ziD9XRO8NPKYa/OSIYKT3Tf62R4xDYjQ=@vger.kernel.org X-Gm-Message-State: AOJu0YwMsnuK7pf+PQMGcJaebS7kmbxvdt5jQM57ONdYzHeU2Oqufx6y oxMWazOdEi0VVJiHijOLDOLTIfhwm4IjqJvfXEoew7ToVawzoeYJLA1Kvyx5gX+DBilXfRTqF3j PgOGgvPeOAnn8GQ1qzh94cjM3Vu2QuxJDvUGl1Aik/E9JfQM8Wpp1sok= X-Google-Smtp-Source: AGHT+IGEkYCKxyMyciitsqaQKvMoYpfw/T/49yVGTSOgDYoPVBBuvxLwnSqzyY2PEzZpLfRIqmguN9tH+NtM9oduTsOySFnBHnag Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3042:b0:3a7:e436:5e00 with SMTP id e9e14a558f8ab-3c2d2d5094emr436622015ab.14.1736161886326; Mon, 06 Jan 2025 03:11:26 -0800 (PST) Date: Mon, 06 Jan 2025 03:11:26 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <677bba5e.050a0220.a40f5.000d.GAE@google.com> Subject: [syzbot] [kernel?] INFO: task hung in remove_one From: syzbot To: anna-maria@linutronix.de, frederic@kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 56e6a3499e14 Merge tag 'trace-v6.13-rc5' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13ba7818580000 kernel config: https://syzkaller.appspot.com/x/.config?x=86dd15278dbfe19f dashboard link: https://syzkaller.appspot.com/bug?extid=3147c5de186107ffc7a1 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=11a4e6c4580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/565d8b4108b2/disk-56e6a349.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e85ad690a360/vmlinux-56e6a349.xz kernel image: https://storage.googleapis.com/syzbot-assets/e6c6b9944a99/bzImage-56e6a349.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3147c5de186107ffc7a1@syzkaller.appspotmail.com INFO: task kworker/u8:1:12 blocked for more than 143 seconds. Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:1 state:D stack:26048 pid:12 tgid:12 ppid:2 flags:0x00004000 Workqueue: netns cleanup_net Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6848 schedule_timeout+0x244/0x280 kernel/time/sleep_timeout.c:75 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common+0x3e1/0x600 kernel/sched/completion.c:116 __debugfs_file_removed fs/debugfs/inode.c:782 [inline] remove_one+0x30f/0x420 fs/debugfs/inode.c:789 simple_recursive_removal+0x4e2/0x8e0 fs/libfs.c:643 debugfs_remove+0x5d/0x80 fs/debugfs/inode.c:812 nsim_dev_health_exit+0x3b/0xe0 drivers/net/netdevsim/health.c:227 nsim_dev_reload_destroy+0x143/0x4d0 drivers/net/netdevsim/dev.c:1664 nsim_dev_reload_down+0x6e/0xd0 drivers/net/netdevsim/dev.c:968 devlink_reload+0x17f/0x760 net/devlink/dev.c:461 devlink_pernet_pre_exit+0x1a1/0x2b0 net/devlink/core.c:509 ops_pre_exit_list net/core/net_namespace.c:162 [inline] cleanup_net+0x488/0xbd0 net/core/net_namespace.c:628 process_one_work+0x958/0x1b30 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz-executor:8392 blocked for more than 143 seconds. Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:23728 pid:8392 tgid:8392 ppid:1 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x62b/0xa60 kernel/locking/mutex.c:735 device_lock include/linux/device.h:1014 [inline] device_del+0xa1/0x9f0 drivers/base/core.c:3816 device_unregister+0x1d/0xc0 drivers/base/core.c:3895 nsim_bus_dev_del drivers/net/netdevsim/bus.c:462 [inline] del_device_store+0x346/0x4b0 drivers/net/netdevsim/bus.c:226 bus_attr_store+0x71/0xb0 drivers/base/bus.c:172 sysfs_kf_write+0x117/0x170 fs/sysfs/file.c:139 kernfs_fop_write_iter+0x33d/0x500 fs/kernfs/file.c:334 new_sync_write fs/read_write.c:586 [inline] vfs_write+0x5ae/0x1150 fs/read_write.c:679 ksys_write+0x12b/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fad171847df RSP: 002b:00007ffcd19c5200 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fad171847df RDX: 0000000000000001 RSI: 00007ffcd19c5250 RDI: 0000000000000005 RBP: 00007fad17202d15 R08: 0000000000000000 R09: 00007ffcd19c5057 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007ffcd19c5250 R14: 00007fad17ea4620 R15: 0000000000000003 INFO: task syz.2.2390:8408 blocked for more than 144 seconds. Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.2390 state:D stack:27424 pid:8408 tgid:8408 ppid:5954 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x62b/0xa60 kernel/locking/mutex.c:735 devlink_health_report+0x3c5/0x9d0 net/devlink/health.c:627 nsim_dev_health_break_write+0x167/0x210 drivers/net/netdevsim/health.c:162 full_proxy_write+0xfb/0x1b0 fs/debugfs/file.c:356 vfs_write+0x24c/0x1150 fs/read_write.c:677 ksys_write+0x12b/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3379985d29 RSP: 002b:00007fffb3cb91a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f3379b75fa0 RCX: 00007f3379985d29 RDX: 0000000000000081 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f3379a01b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3379b75fa0 R14: 00007f3379b75fa0 R15: 00000000000018c7 INFO: task syz.3.2419:8442 blocked for more than 144 seconds. Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.2419 state:D stack:27664 pid:8442 tgid:8442 ppid:5958 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 rwsem_down_read_slowpath+0x61e/0xb20 kernel/locking/rwsem.c:1084 __down_read_common kernel/locking/rwsem.c:1248 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0x124/0x330 kernel/locking/rwsem.c:1526 inode_lock_shared include/linux/fs.h:828 [inline] open_last_lookups fs/namei.c:3747 [inline] path_openat+0x88a/0x2d60 fs/namei.c:3984 do_filp_open+0x20c/0x470 fs/namei.c:4014 do_sys_openat2+0x17a/0x1e0 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __x64_sys_openat+0x175/0x210 fs/open.c:1428 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb33b385d29 RSP: 002b:00007ffd334d3db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fb33b575fa0 RCX: 00007fb33b385d29 RDX: 0000000000000101 RSI: 00000000200000c0 RDI: ffffffffffffff9c RBP: 00007fb33b401b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fb33b575fa0 R14: 00007fb33b575fa0 R15: 0000000000000d70 INFO: task syz.0.2421:8444 blocked for more than 144 seconds. Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.2421 state:D stack:27472 pid:8444 tgid:8444 ppid:5946 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 rwsem_down_read_slowpath+0x61e/0xb20 kernel/locking/rwsem.c:1084 __down_read_common kernel/locking/rwsem.c:1248 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0x124/0x330 kernel/locking/rwsem.c:1526 inode_lock_shared include/linux/fs.h:828 [inline] open_last_lookups fs/namei.c:3747 [inline] path_openat+0x88a/0x2d60 fs/namei.c:3984 do_filp_open+0x20c/0x470 fs/namei.c:4014 do_sys_openat2+0x17a/0x1e0 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __x64_sys_openat+0x175/0x210 fs/open.c:1428 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc470585d29 RSP: 002b:00007ffed31fd638 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fc470775fa0 RCX: 00007fc470585d29 RDX: 0000000000000101 RSI: 00000000200000c0 RDI: ffffffffffffff9c RBP: 00007fc470601b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc470775fa0 R14: 00007fc470775fa0 R15: 0000000000000d70 INFO: task syz-executor:8458 blocked for more than 144 seconds. Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:24176 pid:8458 tgid:8458 ppid:1 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x62b/0xa60 kernel/locking/mutex.c:735 del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 bus_attr_store+0x71/0xb0 drivers/base/bus.c:172 sysfs_kf_write+0x117/0x170 fs/sysfs/file.c:139 kernfs_fop_write_iter+0x33d/0x500 fs/kernfs/file.c:334 new_sync_write fs/read_write.c:586 [inline] vfs_write+0x5ae/0x1150 fs/read_write.c:679 ksys_write+0x12b/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fed3a5847df RSP: 002b:00007fffb95726c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fed3a5847df RDX: 0000000000000001 RSI: 00007fffb9572710 RDI: 0000000000000005 RBP: 00007fed3a602d15 R08: 0000000000000000 R09: 00007fffb9572517 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007fffb9572710 R14: 00007fed3b2a4620 R15: 0000000000000003 INFO: task syz-executor:8460 blocked for more than 145 seconds. Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:24368 pid:8460 tgid:8460 ppid:1 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x62b/0xa60 kernel/locking/mutex.c:735 del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 bus_attr_store+0x71/0xb0 drivers/base/bus.c:172 sysfs_kf_write+0x117/0x170 fs/sysfs/file.c:139 kernfs_fop_write_iter+0x33d/0x500 fs/kernfs/file.c:334 new_sync_write fs/read_write.c:586 [inline] vfs_write+0x5ae/0x1150 fs/read_write.c:679 ksys_write+0x12b/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1a33f847df RSP: 002b:00007ffcc5f907c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f1a33f847df RDX: 0000000000000001 RSI: 00007ffcc5f90810 RDI: 0000000000000005 RBP: 00007f1a34002d15 R08: 0000000000000000 R09: 00007ffcc5f90617 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007ffcc5f90810 R14: 00007f1a34ca4620 R15: 0000000000000003 INFO: task syz-executor:8461 blocked for more than 145 seconds. Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:24592 pid:8461 tgid:8461 ppid:1 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 __mutex_lock_common kernel/locking/mutex.c:665 [inline] __mutex_lock+0x62b/0xa60 kernel/locking/mutex.c:735 del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 bus_attr_store+0x71/0xb0 drivers/base/bus.c:172 sysfs_kf_write+0x117/0x170 fs/sysfs/file.c:139 kernfs_fop_write_iter+0x33d/0x500 fs/kernfs/file.c:334 new_sync_write fs/read_write.c:586 [inline] vfs_write+0x5ae/0x1150 fs/read_write.c:679 ksys_write+0x12b/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f38d41847df RSP: 002b:00007ffcd430b8c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f38d41847df RDX: 0000000000000001 RSI: 00007ffcd430b910 RDI: 0000000000000005 RBP: 00007f38d4202d15 R08: 0000000000000000 R09: 00007ffcd430b717 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007ffcd430b910 R14: 00007f38d4ea4620 R15: 0000000000000003 Showing all locks held in the system: 6 locks held by kworker/u8:1/12: #0: ffff88801baed948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12cd/0x1b30 kernel/workqueue.c:3204 #1: ffffc90000117d80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8bb/0x1b30 kernel/workqueue.c:3205 #2: ffffffff8faa9cd0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbb/0xbd0 net/core/net_namespace.c:602 #3: ffff88805cd320e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #3: ffff88805cd320e8 (&dev->mutex){....}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline] #3: ffff88805cd320e8 (&dev->mutex){....}-{4:4}, at: devlink_pernet_pre_exit+0x12d/0x2b0 net/devlink/core.c:506 #4: ffff88805cd33250 (&devlink->lock_key#4){+.+.}-{4:4}, at: devl_lock net/devlink/core.c:276 [inline] #4: ffff88805cd33250 (&devlink->lock_key#4){+.+.}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline] #4: ffff88805cd33250 (&devlink->lock_key#4){+.+.}-{4:4}, at: devlink_pernet_pre_exit+0x137/0x2b0 net/devlink/core.c:506 #5: ffff88805f01ee90 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #5: ffff88805f01ee90 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: simple_recursive_removal+0x2f5/0x8e0 fs/libfs.c:635 1 lock held by khungtaskd/30: #0: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6744 2 locks held by kworker/u8:7/3562: 2 locks held by getty/5605: #0: ffff88814e8c00a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211 5 locks held by syz-executor/8392: #0: ffff888034fe0420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff8880640ad488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x27b/0x500 fs/kernfs/file.c:325 #2: ffff888027b1ae18 (kn->active#55){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x500 fs/kernfs/file.c:326 #3: ffffffff8f074688 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 #4: ffff88805cd320e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #4: ffff88805cd320e8 (&dev->mutex){....}-{4:4}, at: device_del+0xa1/0x9f0 drivers/base/core.c:3816 2 locks held by syz.2.2390/8408: #0: ffff88801d69e420 (sb_writers#9){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff88805cd33250 (&devlink->lock_key#4){+.+.}-{4:4}, at: devlink_health_report+0x3c5/0x9d0 net/devlink/health.c:627 2 locks held by syz.3.2419/8442: #0: ffff88801d69e420 (sb_writers#9){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:3737 [inline] #0: ffff88801d69e420 (sb_writers#9){.+.+}-{0:0}, at: path_openat+0x1f46/0x2d60 fs/namei.c:3984 #1: ffff88805f01ee90 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:828 [inline] #1: ffff88805f01ee90 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: open_last_lookups fs/namei.c:3747 [inline] #1: ffff88805f01ee90 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: path_openat+0x88a/0x2d60 fs/namei.c:3984 2 locks held by syz.0.2421/8444: #0: ffff88801d69e420 (sb_writers#9){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:3737 [inline] #0: ffff88801d69e420 (sb_writers#9){.+.+}-{0:0}, at: path_openat+0x1f46/0x2d60 fs/namei.c:3984 #1: ffff88805f01ee90 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:828 [inline] #1: ffff88805f01ee90 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: open_last_lookups fs/namei.c:3747 [inline] #1: ffff88805f01ee90 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: path_openat+0x88a/0x2d60 fs/namei.c:3984 4 locks held by syz-executor/8458: #0: ffff888034fe0420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff88814046f888 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x27b/0x500 fs/kernfs/file.c:325 #2: ffff888027b1ae18 (kn->active#55){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x500 fs/kernfs/file.c:326 #3: ffffffff8f074688 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 4 locks held by syz-executor/8460: #0: ffff888034fe0420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff8881453fe088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x27b/0x500 fs/kernfs/file.c:325 #2: ffff888027b1ae18 (kn->active#55){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x500 fs/kernfs/file.c:326 #3: ffffffff8f074688 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 4 locks held by syz-executor/8461: #0: ffff888034fe0420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff888032b13488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x27b/0x500 fs/kernfs/file.c:325 #2: ffff888027b1ae18 (kn->active#55){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x500 fs/kernfs/file.c:326 #3: ffffffff8f074688 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 4 locks held by syz-executor/8488: #0: ffff888034fe0420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff888063babc88 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x27b/0x500 fs/kernfs/file.c:325 #2: ffff888027b1ae18 (kn->active#55){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x500 fs/kernfs/file.c:326 #3: ffffffff8f074688 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 4 locks held by syz-executor/8501: #0: ffff888034fe0420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff888032042488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x27b/0x500 fs/kernfs/file.c:325 #2: ffff888027b1ae18 (kn->active#55){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x500 fs/kernfs/file.c:326 #3: ffffffff8f074688 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 4 locks held by syz-executor/8504: #0: ffff888034fe0420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff888073f7d888 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x27b/0x500 fs/kernfs/file.c:325 #2: ffff888027b1ae18 (kn->active#55){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x500 fs/kernfs/file.c:326 #3: ffffffff8f074688 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 4 locks held by syz-executor/8507: #0: ffff888034fe0420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff888031696c88 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x27b/0x500 fs/kernfs/file.c:325 #2: ffff888027b1ae18 (kn->active#55){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x500 fs/kernfs/file.c:326 #3: ffffffff8f074688 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 4 locks held by syz-executor/8533: #0: ffff888034fe0420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff888030fbf488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x27b/0x500 fs/kernfs/file.c:325 #2: ffff888027b1ae18 (kn->active#55){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x500 fs/kernfs/file.c:326 #3: ffffffff8f074688 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 4 locks held by syz-executor/8546: #0: ffff888034fe0420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff888060cc3088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x27b/0x500 fs/kernfs/file.c:325 #2: ffff888027b1ae18 (kn->active#55){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x500 fs/kernfs/file.c:326 #3: ffffffff8f074688 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 4 locks held by syz-executor/8548: #0: ffff888034fe0420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff888058971088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x27b/0x500 fs/kernfs/file.c:325 #2: ffff888027b1ae18 (kn->active#55){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x500 fs/kernfs/file.c:326 #3: ffffffff8f074688 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 4 locks held by syz-executor/8552: #0: ffff888034fe0420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:731 #1: ffff88805e6a4488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x27b/0x500 fs/kernfs/file.c:325 #2: ffff888027b1ae18 (kn->active#55){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x500 fs/kernfs/file.c:326 #3: ffffffff8f074688 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd2/0x4b0 drivers/net/netdevsim/bus.c:216 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline] watchdog+0xf14/0x1240 kernel/hung_task.c:397 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 52 Comm: kworker/u8:3 Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:unwind_next_frame+0xb5c/0x20c0 arch/x86/kernel/unwind_orc.c:592 Code: c1 ea 03 80 3c 02 00 0f 85 6c 12 00 00 49 8d 7d 58 49 c7 45 50 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 a4 12 00 00 4c 89 c8 49 c7 45 58 00 00 00 00 48 RSP: 0018:ffffc90000bd6be8 EFLAGS: 00000a06 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff9154b0c0 RDX: 1ffff9200017ad96 RSI: 1ffff9200017ad94 RDI: ffffc90000bd6cb0 RBP: ffffc90000bd6ca0 R08: ffffc90000bd6c8c R09: ffffffff9154b0c4 R10: ffffc90000bd6c58 R11: 00000000000993a4 R12: ffffc90000bd6ca8 R13: ffffc90000bd6c58 R14: ffffc90000bd7c88 R15: ffffc90000bd7c80 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056240f7bb600 CR3: 000000000db7e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_stack_walk+0x95/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4298 [inline] __kmalloc_noprof+0x21a/0x4f0 mm/slub.c:4310 kmalloc_noprof include/linux/slab.h:905 [inline] kzalloc_noprof include/linux/slab.h:1037 [inline] ieee802_11_parse_elems_full+0xe6/0x1630 net/mac80211/parse.c:958 ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2384 [inline] ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2391 [inline] ieee80211_inform_bss+0xf1/0x10f0 net/mac80211/scan.c:79 rdev_inform_bss net/wireless/rdev-ops.h:418 [inline] cfg80211_inform_single_bss_data+0x8b1/0x1e40 net/wireless/scan.c:2334 cfg80211_inform_bss_data+0x254/0x3e40 net/wireless/scan.c:3189 cfg80211_inform_bss_frame_data+0x252/0x8a0 net/wireless/scan.c:3284 ieee80211_bss_info_update+0x311/0xab0 net/mac80211/scan.c:226 ieee80211_rx_bss_info net/mac80211/ibss.c:1101 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1580 [inline] ieee80211_ibss_rx_queued_mgmt+0x1956/0x3040 net/mac80211/ibss.c:1607 ieee80211_iface_process_skb net/mac80211/iface.c:1613 [inline] ieee80211_iface_work+0xc0b/0xf00 net/mac80211/iface.c:1667 cfg80211_wiphy_work+0x3de/0x560 net/wireless/core.c:440 process_one_work+0x958/0x1b30 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 --- 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@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, 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 report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup