Bluetooth: hci9: command 0x040f tx timeout Bluetooth: hci8: command 0x0419 tx timeout Bluetooth: hci9: command 0x0419 tx timeout ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.1:22941 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.1 D27744 22941 18793 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 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x20a/0x390 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x44/0x80 kernel/locking/rwsem.c:26 iterate_supers+0xdb/0x290 fs/super.c:631 quota_sync_all fs/quota/quota.c:67 [inline] kernel_quotactl+0x67b/0x1330 fs/quota/quota.c:855 __do_sys_quotactl fs/quota/quota.c:893 [inline] __se_sys_quotactl fs/quota/quota.c:890 [inline] __x64_sys_quotactl+0x93/0xf0 fs/quota/quota.c:890 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f66a57bd0c9 Code: Bad RIP value. RSP: 002b:00007f66a3d2f168 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3 RAX: ffffffffffffffda RBX: 00007f66a58dcf80 RCX: 00007f66a57bd0c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000080000102 RBP: 00007f66a5818ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdb89a3c0f R14: 00007f66a3d2f300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1570: #0: 00000000a9f0deca (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by syz-executor.5/22934: #0: 00000000ffa9e69b (&type->s_umount_key#55/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 00000000ffa9e69b (&type->s_umount_key#55/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 1 lock held by syz-executor.1/22941: #0: 00000000ffa9e69b (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/23536: #0: 00000000800a1cbc (&type->s_umount_key#55/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 00000000800a1cbc (&type->s_umount_key#55/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 1 lock held by syz-executor.1/23566: #0: 00000000ffa9e69b (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.1/23572: #0: 00000000ffa9e69b (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.1/24090: #0: 00000000ffa9e69b (&type->s_umount_key#56){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.5/24132: #0: 00000000752fe721 (&type->s_umount_key#55/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 00000000752fe721 (&type->s_umount_key#55/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 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 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4690 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:___bpf_prog_run+0x22b9/0x4e80 kernel/bpf/core.c:1088 Code: 84 d2 0f 85 26 23 00 00 49 0f bf 46 02 4d 8d 74 c6 08 e9 9a dd ff ff e8 25 2c f6 ff 49 8d 7e 01 48 89 f8 48 89 fa 48 c1 e8 03 <83> e2 07 0f b6 04 18 38 d0 7f 08 84 c0 0f 85 81 29 00 00 41 0f b6 RSP: 0018:ffff8880a0c27a30 EFLAGS: 00000a02 RAX: 1ffff9200035a408 RBX: dffffc0000000000 RCX: 1ffff11014184f60 RDX: ffffc90001ad2041 RSI: ffffffff816c594b RDI: ffffc90001ad2041 RBP: ffff8880a0c27b00 R08: 0000000000000000 R09: 000000007fff0000 R10: 0000000000000004 R11: 0000000000000000 R12: ffffffff886fb460 R13: ffffed1014184f62 R14: ffffc90001ad2040 R15: 00000000000000ac FS: 00007fe977c298c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe975187000 CR3: 00000000a0c60000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: