INFO: task kworker/u4:1:23 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 Unknown ioctl -1072131211 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal kworker/u4:1 D26624 23 2 0x80000000 REISERFS (device loop5): using ordered data mode Workqueue: netns cleanup_net Call Trace: reiserfs: using flush barriers context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794 REISERFS (device loop5): checking transaction log (loop5) do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x29c/0x470 kernel/sched/completion.c:115 flush_workqueue+0x40b/0x13e0 kernel/workqueue.c:2713 REISERFS (device loop5): Using r5 hash to sort names REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. flush_scheduled_work include/linux/workqueue.h:599 [inline] tipc_exit_net+0x38/0x60 net/tipc/core.c:100 audit: type=1804 audit(1669612229.103:176): pid=27145 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2037429532/syzkaller.hXnNGg/104/file0/bus" dev="loop5" ino=4 res=1 ops_exit_list+0xa5/0x150 net/core/net_namespace.c:153 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:554 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task syz-executor.0:20147 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D26808 20147 8126 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x29c/0x470 kernel/sched/completion.c:115 UDF-fs: bad mount option "uid<00000000000000060929" or missing value __flush_work+0x4bb/0x8b0 kernel/workqueue.c:2926 __cancel_work_timer+0x412/0x590 kernel/workqueue.c:3013 p9_conn_destroy net/9p/trans_fd.c:904 [inline] p9_fd_close+0x305/0x520 net/9p/trans_fd.c:934 p9_client_create+0x901/0x12e0 net/9p/client.c:1084 v9fs_session_init+0x1dd/0x1770 fs/9p/v9fs.c:421 UDF-fs: bad mount option "uid<00000000000000060929" or missing value v9fs_mount+0x73/0x910 fs/9p/vfs_super.c:135 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 UDF-fs: bad mount option "uid<00000000000000060929" or missing value ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fc4b29bf0d9 Code: Bad RIP value. RSP: 002b:00007fc4b0f31168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fc4b2adef80 RCX: 00007fc4b29bf0d9 RDX: 0000000020000100 RSI: 0000000020000080 RDI: 0000000000000000 RBP: 00007fc4b2a1aae9 R08: 0000000020000180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff1c7c1b4f R14: 00007fc4b0f31300 R15: 0000000000022000 Showing all locks held in the system: ieee80211 ©,í…×;qO!: Selected rate control algorithm 'minstrel_ht' 3 locks held by kworker/u4:0/7: #0: 0000000072928bcb ((wq_completion)"cfg80211"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000007b75e90d ((work_completion)(&(&rdev->dfs_update_channels_wk)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 000000004c3cea27 (rtnl_mutex){+.+.}, at: cfg80211_dfs_channels_update_work+0x98/0x5a0 net/wireless/mlme.c:777 4 locks held by kworker/0:1/14: #0: 00000000352ee549 ((wq_completion)"events"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 Unknown ioctl -1072131211 Unknown ioctl -1072131211 #1: 000000009b231608 ((linkwatch_work).work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 Unknown ioctl -1072131211 Unknown ioctl -1072131211 #2: 000000004c3cea27 (rtnl_mutex){+.+.}, at: linkwatch_event+0xb/0x60 net/core/link_watch.c:236 Unknown ioctl -1072131211 Unknown ioctl -1072131211 #3: 000000001c110bd1 (rcu_preempt_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline] #3: 000000001c110bd1 (rcu_preempt_state.exp_mutex){+.+.}, at: _synchronize_rcu_expedited+0x4dc/0x6f0 kernel/rcu/tree_exp.h:667 Unknown ioctl -1072131211 audit: type=1804 audit(1669612230.323:177): pid=27284 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2037429532/syzkaller.hXnNGg/105/bus" dev="sda1" ino=14323 res=1 3 locks held by kworker/u4:1/23: Unknown ioctl -1072131211 Unknown ioctl -1072131211 Unknown ioctl -1072131211 #0: 000000006334b4bf ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 Unknown ioctl -1072131211 audit: type=1804 audit(1669612230.353:178): pid=27284 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2037429532/syzkaller.hXnNGg/105/bus" dev="sda1" ino=14323 res=1 #1: 000000009d7ba6d4 (net_cleanup_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 Unknown ioctl -1072131211 Unknown ioctl -1072131211 Unknown ioctl -1072131211 REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal Unknown ioctl -1072131211 REISERFS (device loop5): using ordered data mode #2: 00000000a6b957b6 (pernet_ops_rwsem){++++}, at: cleanup_net+0xa8/0x8b0 net/core/net_namespace.c:521 Unknown ioctl -1072131211 audit: type=1804 audit(1669612230.353:179): pid=27284 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2037429532/syzkaller.hXnNGg/105/bus" dev="sda1" ino=14323 res=1 3 locks held by kauditd/33: reiserfs: using flush barriers REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 Unknown ioctl -1072131211 3 locks held by kworker/u4:2/116: Unknown ioctl -1072131211 Unknown ioctl -1072131211 Unknown ioctl -1072131211 REISERFS (device loop5): checking transaction log (loop5) 1 lock held by khungtaskd/1570: audit: type=1804 audit(1669612230.353:180): pid=27284 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2037429532/syzkaller.hXnNGg/105/bus" dev="sda1" ino=14323 res=1 #0: 000000007233fa3f (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 Unknown ioctl -1072131211 Unknown ioctl -1072131211 Unknown ioctl -1072131211 1 lock held by in:imklog/7797: Unknown ioctl -1072131211 #0: 000000005facad95 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 Unknown ioctl -1072131211 Unknown ioctl -1072131211 2 locks held by login/7811: audit: type=1804 audit(1669612230.353:181): pid=27284 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2037429532/syzkaller.hXnNGg/105/bus" dev="sda1" ino=14323 res=1 Unknown ioctl -1072131211 #0: 000000005bf96d1a (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000260865ec (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1950 drivers/tty/n_tty.c:2154 REISERFS (device loop5): Using r5 hash to sort names REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. Unknown ioctl -1072131211 2 locks held by kworker/0:3/8132: Unknown ioctl -1072131211 audit: type=1804 audit(1669612230.353:182): pid=27284 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2037429532/syzkaller.hXnNGg/105/bus" dev="sda1" ino=14323 res=1 #0: 00000000319e804b ((wq_completion)"rcu_gp"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 Unknown ioctl -1072131211 Unknown ioctl -1072131211 audit: type=1804 audit(1669612230.353:183): pid=27284 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2037429532/syzkaller.hXnNGg/105/bus" dev="sda1" ino=14323 res=1 Unknown ioctl -1072131211 #1: 00000000cc62562d ((work_completion)(&rew.rew_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 audit: type=1804 audit(1669612230.353:184): pid=27284 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2037429532/syzkaller.hXnNGg/105/bus" dev="sda1" ino=14323 res=1 2 locks held by kworker/1:4/8960: Unknown ioctl -1072131211 #0: 00000000352ee549 ((wq_completion)"events"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 audit: type=1804 audit(1669612230.353:185): pid=27284 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2037429532/syzkaller.hXnNGg/105/bus" dev="sda1" ino=14323 res=1 #1: 00000000f4545ade ((work_completion)(&m->wq)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 1 lock held by syz-executor.5/20223: #0: 000000001c110bd1 (rcu_preempt_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline] #0: 000000001c110bd1 (rcu_preempt_state.exp_mutex){+.+.}, at: _synchronize_rcu_expedited+0x256/0x6f0 kernel/rcu/tree_exp.h:667 1 lock held by syz-executor.1/27237: #0: 000000004c3cea27 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] #0: 000000004c3cea27 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779 1 lock held by syz-executor.3/27246: #0: 000000004c3cea27 (rtnl_mutex){+.+.}, at: wext_ioctl_dispatch net/wireless/wext-core.c:987 [inline] #0: 000000004c3cea27 (rtnl_mutex){+.+.}, at: wext_ioctl_dispatch net/wireless/wext-core.c:976 [inline] #0: 000000004c3cea27 (rtnl_mutex){+.+.}, at: wext_handle_ioctl+0x248/0x280 net/wireless/wext-core.c:1049 3 locks held by syz-executor.2/27255: #0: 000000001c36f224 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 0000000075af4c82 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 0000000075af4c82 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 #2: 000000004c3cea27 (rtnl_mutex){+.+.}, at: wiphy_new_nm+0x1761/0x1d30 net/wireless/core.c:432 2 locks held by syz-executor.4/27258: device erspan0 entered promiscuous mode ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 sit0: Cannot use loopback or non-ethernet device as HSR slave. Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: device erspan0 left promiscuous mode NMI backtrace for cpu 0 CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet RIP: 0010:separate_irq_context kernel/locking/lockdep.c:3045 [inline] RIP: 0010:__lock_acquire+0x7a7/0x3ff0 kernel/locking/lockdep.c:3407 Code: 89 d1 48 c1 e9 03 80 3c 11 00 0f 85 e5 26 00 00 48 8b 4c 24 18 49 89 1a 48 ba 00 00 00 00 00 fc ff df 48 c1 e9 03 0f b6 14 11 <84> d2 74 09 80 fa 03 0f 8e 93 26 00 00 41 8b 95 80 08 00 00 85 d2 RSP: 0018:ffff8880b5a47978 EFLAGS: 00000806 RAX: 000000000000002e RBX: fed43e83d8bc10e6 RCX: 1ffff11016b46d48 RDX: 0000000000000000 RSI: ffff8880b5a36ac0 RDI: ffffffff8cd630c0 RBP: 0000000000000000 R08: 000000000000002e R09: 0000000000000003 R10: ffff8880b5a36ac0 R11: 0000000000000000 R12: 000000000002002e R13: ffff8880b5a361c0 R14: ffff8880b5a36ad8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555561a3848 CR3: 00000000a5523000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 rcu_lock_acquire include/linux/rcupdate.h:242 [inline] rcu_read_lock include/linux/rcupdate.h:627 [inline] batadv_iv_ogm_slide_own_bcast_window net/batman-adv/bat_iv_ogm.c:942 [inline] batadv_iv_ogm_schedule_buff+0x5bb/0x1340 net/batman-adv/bat_iv_ogm.c:1008 batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:1052 [inline] batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:1045 [inline] batadv_iv_send_outstanding_bat_ogm_packet+0x68c/0x7a0 net/batman-adv/bat_iv_ogm.c:1871 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 sysfs: cannot create duplicate filename '/class/ieee80211/©,í…×;qO!'