INFO: task syz-executor365:3672 blocked for more than 143 seconds. Tainted: G W 5.17.0-syzkaller-13532-gb4a5ea09b293 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor365 state:D stack:28664 pid: 3672 ppid: 3623 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5073 [inline] __schedule+0xa9a/0x4940 kernel/sched/core.c:6382 schedule+0xd2/0x1f0 kernel/sched/core.c:6454 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x373/0x530 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3075 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3162 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3039 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3590 [inline] __se_sys_mount fs/namespace.c:3567 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3567 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f147a401cb9 RSP: 002b:00007f147a3b3308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f147a4894c8 RCX: 00007f147a401cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f147a4894c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f147a4894cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 INFO: task syz-executor365:3747 blocked for more than 143 seconds. Tainted: G W 5.17.0-syzkaller-13532-gb4a5ea09b293 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor365 state:D stack:28168 pid: 3747 ppid: 3622 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5073 [inline] __schedule+0xa9a/0x4940 kernel/sched/core.c:6382 schedule+0xd2/0x1f0 kernel/sched/core.c:6454 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x373/0x530 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3075 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3162 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3039 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3590 [inline] __se_sys_mount fs/namespace.c:3567 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3567 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f147a401cb9 RSP: 002b:00007f147a3b3308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f147a4894c8 RCX: 00007f147a401cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f147a4894c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f147a4894cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 INFO: task syz-executor365:3755 blocked for more than 144 seconds. Tainted: G W 5.17.0-syzkaller-13532-gb4a5ea09b293 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor365 state:D stack:28168 pid: 3755 ppid: 3621 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5073 [inline] __schedule+0xa9a/0x4940 kernel/sched/core.c:6382 schedule+0xd2/0x1f0 kernel/sched/core.c:6454 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x373/0x530 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3075 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3162 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3039 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3590 [inline] __se_sys_mount fs/namespace.c:3567 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3567 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f147a401cb9 RSP: 002b:00007f147a3b3308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f147a4894c8 RCX: 00007f147a401cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f147a4894c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f147a4894cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 INFO: lockdep is turned off. NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Tainted: G W 5.17.0-syzkaller-13532-gb4a5ea09b293 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline] watchdog+0xc1d/0xf50 kernel/hung_task.c:369 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 3618 Comm: syz-executor365 Tainted: G W 5.17.0-syzkaller-13532-gb4a5ea09b293 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:native_swapgs arch/x86/include/asm/processor.h:558 [inline] RIP: 0010:__wrgsbase_inactive+0x34/0x40 arch/x86/kernel/process_64.c:196 Code: 65 8b 05 17 4f a5 76 85 c0 75 0d 65 8b 05 20 4c a5 76 85 c0 74 02 0f 0b eb 08 0f 1f 00 e9 b4 84 cc f7 0f 01 f8 f3 48 0f ae df <0f> 01 f8 c3 cc cc cc cc cc cc cc cc 48 ba ff ef ff ff ff 7f 00 00 RSP: 0018:ffffc90002e1fae0 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 1ffff1100fabbf3e RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff88807d5de240 R08: ffff88807e9e17a4 R09: ffffffff8db63d97 R10: fffffbfff1b6c7b2 R11: 000000000000003f R12: ffff88807e9e0000 R13: 0000000000000000 R14: ffff88807e9e1780 R15: ffff88807e9e17a6 FS: 0000555556e29300(0000) GS:ffff8880b9c00000(0000) knlGS:ffff8880b9c00000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f147a456e98 CR3: 000000007d20a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ---------------- Code disassembly (best guess): 0: 65 8b 05 17 4f a5 76 mov %gs:0x76a54f17(%rip),%eax # 0x76a54f1e 7: 85 c0 test %eax,%eax 9: 75 0d jne 0x18 b: 65 8b 05 20 4c a5 76 mov %gs:0x76a54c20(%rip),%eax # 0x76a54c32 12: 85 c0 test %eax,%eax 14: 74 02 je 0x18 16: 0f 0b ud2 18: eb 08 jmp 0x22 1a: 0f 1f 00 nopl (%rax) 1d: e9 b4 84 cc f7 jmpq 0xf7cc84d6 22: 0f 01 f8 swapgs 25: f3 48 0f ae df wrgsbase %rdi * 2a: 0f 01 f8 swapgs <-- trapping instruction 2d: c3 retq 2e: cc int3 2f: cc int3 30: cc int3 31: cc int3 32: cc int3 33: cc int3 34: cc int3 35: cc int3 36: 48 ba ff ef ff ff ff movabs $0x7fffffffefff,%rdx 3d: 7f 00 00