wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready Bluetooth: hci7: command 0x041b tx timeout INFO: task syz-executor.3:9630 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.3 D26136 9630 8197 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 xlog_grant_head_wait+0x13b/0xcd0 fs/xfs/xfs_log.c:263 xlog_grant_head_check+0x3c8/0x420 fs/xfs/xfs_log.c:325 xfs_log_reserve+0x347/0xa70 fs/xfs/xfs_log.c:454 xfs_trans_reserve+0x63a/0x9c0 fs/xfs/xfs_trans.c:197 xfs_trans_alloc+0x2f7/0x700 fs/xfs/xfs_trans.c:289 xlog_finish_defer_ops fs/xfs/xfs_log_recover.c:4841 [inline] xlog_recover_process_intents+0x274/0x430 fs/xfs/xfs_log_recover.c:4947 xlog_recover_finish+0x5f/0x230 fs/xfs/xfs_log_recover.c:5839 xfs_log_mount_finish+0x135/0x450 fs/xfs/xfs_log.c:778 xfs_mountfs+0x1032/0x1bf0 fs/xfs/xfs_mount.c:974 xfs_fs_fill_super+0xd0e/0x1540 fs/xfs/xfs_super.c:1720 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 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 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: 0033:0x7f2e808de5fa Code: Bad RIP value. RSP: 002b:00007f2e7ee4ef88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000000bb2c RCX: 00007f2e808de5fa RDX: 000000002000bb00 RSI: 0000000020000040 RDI: 00007f2e7ee4efe0 RBP: 00007f2e7ee4f020 R08: 00007f2e7ee4f020 R09: 0000000001000005 Bluetooth: hci7: command 0x040f tx timeout R10: 0000000001000005 R11: 0000000000000202 R12: 000000002000bb00 R13: 0000000020000040 R14: 00007f2e7ee4efe0 R15: 0000000020000300 Showing all locks held in the system: 1 lock held by khungtaskd/1571: #0: 0000000076ec4f7c (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7754: #0: 0000000073511796 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 2 locks held by syz-executor.3/9630: #0: 00000000fd3b51bd (&type->s_umount_key#50/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 00000000fd3b51bd (&type->s_umount_key#50/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 #1: 0000000040a8c485 (sb_internal#2){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] #1: 0000000040a8c485 (sb_internal#2){.+.+}, at: xfs_trans_alloc+0x4fc/0x700 fs/xfs/xfs_trans.c:271 1 lock held by syz-executor.3/12358: #0: 00000000fd3b51bd (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.3/12370: #0: 00000000fd3b51bd (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.3/12371: #0: 00000000fd3b51bd (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.3/12377: #0: 00000000fd3b51bd (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.3/12386: #0: 00000000fd3b51bd (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.3/12436: #0: 00000000fd3b51bd (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.3/13017: #0: 00000000fd3b51bd (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.3/13020: #0: 00000000fd3b51bd (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.3/13021: #0: 00000000fd3b51bd (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.3/13022: #0: 00000000fd3b51bd (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 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 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 11129 Comm: kworker/u4:9 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Workqueue: bat_events batadv_nc_worker RIP: 0010:__lock_release kernel/locking/lockdep.c:3686 [inline] RIP: 0010:lock_release+0x2b6/0x8b0 kernel/locking/lockdep.c:3927 Code: 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 0f b6 0c 11 48 89 fa 83 e2 07 83 c2 01 38 ca 7c 08 84 c9 0f 85 41 05 00 00 <66> f7 40 22 f0 ff 74 37 48 8d 78 20 48 ba 00 00 00 00 00 fc ff df RSP: 0018:ffff88802bedfc00 EFLAGS: 00000046 RAX: ffff88802bed4e58 RBX: ffffffff8d243760 RCX: 0000000000000000 RDX: 0000000000000003 RSI: ffffffff89f85fa0 RDI: ffff88802bed4e7a RBP: ffffffff89f85fa0 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff110057dbf83 R13: ffffffff87d8f075 R14: ffff88802bed4580 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdf1be8c000 CR3: 00000000a12bc000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_lock_release include/linux/rcupdate.h:247 [inline] rcu_read_unlock include/linux/rcupdate.h:681 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:423 [inline] batadv_nc_worker+0x66c/0xd50 net/batman-adv/network-coding.c:730 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