INFO: task syz-executor.4:5075 blocked for more than 143 seconds.
Not tainted 6.6.0-rc5-syzkaller-00055-g1c8b86a3799f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:20088 pid:5075 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x196c/0x4af0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
rwsem_down_write_slowpath+0xee6/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
__super_lock fs/super.c:56 [inline]
__super_lock_excl fs/super.c:71 [inline]
deactivate_super+0xad/0xf0 fs/super.c:513
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1254
task_work_run+0x24a/0x300 kernel/task_work.c:180
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7efca9e7de17
RSP: 002b:00007ffca95f4c18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007efca9e7de17
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffca95f4cd0
RBP: 00007ffca95f4cd0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffca95f5d90
R13: 00007efca9ec73b9 R14: 00000000000398cc R15: 000000000000000c
INFO: task syz-executor.3:6334 blocked for more than 143 seconds.
Not tainted 6.6.0-rc5-syzkaller-00055-g1c8b86a3799f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:25128 pid:6334 ppid:5062 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x196c/0x4af0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
jfs_flush_journal+0x72b/0xec0 fs/jfs/jfs_logmgr.c:1564
jfs_sync_fs+0x80/0xa0 fs/jfs/super.c:684
dquot_quota_sync+0xdb/0x490 fs/quota/dquot.c:741
iterate_supers+0xc2/0x180 fs/super.c:968
quota_sync_all fs/quota/quota.c:69 [inline]
__do_sys_quotactl fs/quota/quota.c:938 [inline]
__se_sys_quotactl+0x391/0xa30 fs/quota/quota.c:917
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdb1ee7cae9
RSP: 002b:00007fdb1fc600c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007fdb1ef9bf80 RCX: 00007fdb1ee7cae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000100
RBP: 00007fdb1eec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fdb1ef9bf80 R15: 00007fffa933bd38
INFO: task syz-executor.2:6338 blocked for more than 144 seconds.
Not tainted 6.6.0-rc5-syzkaller-00055-g1c8b86a3799f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:24968 pid:6338 ppid:5060 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x196c/0x4af0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x703/0xa40 kernel/locking/rwsem.c:1522
__super_lock fs/super.c:58 [inline]
super_lock+0x176/0x390 fs/super.c:117
super_lock_shared fs/super.c:146 [inline]
iterate_supers+0x8c/0x180 fs/super.c:966
quota_sync_all fs/quota/quota.c:69 [inline]
__do_sys_quotactl fs/quota/quota.c:938 [inline]
__se_sys_quotactl+0x391/0xa30 fs/quota/quota.c:917
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3c87c7cae9
RSP: 002b:00007f3c8897d0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f3c87d9bf80 RCX: 00007f3c87c7cae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000100
RBP: 00007f3c87cc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f3c87d9bf80 R15: 00007ffcd26f4b28
INFO: task syz-executor.0:6340 blocked for more than 144 seconds.
Not tainted 6.6.0-rc5-syzkaller-00055-g1c8b86a3799f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:25128 pid:6340 ppid:5069 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x196c/0x4af0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x703/0xa40 kernel/locking/rwsem.c:1522
__super_lock fs/super.c:58 [inline]
super_lock+0x176/0x390 fs/super.c:117
super_lock_shared fs/super.c:146 [inline]
iterate_supers+0x8c/0x180 fs/super.c:966
quota_sync_all fs/quota/quota.c:69 [inline]
__do_sys_quotactl fs/quota/quota.c:938 [inline]
__se_sys_quotactl+0x391/0xa30 fs/quota/quota.c:917
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa08cc7cae9
RSP: 002b:00007fa08d96d0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007fa08cd9bf80 RCX: 00007fa08cc7cae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000100
RBP: 00007fa08ccc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa08cd9bf80 R15: 00007ffd86a8e538
INFO: task syz-executor.5:6342 blocked for more than 144 seconds.
Not tainted 6.6.0-rc5-syzkaller-00055-g1c8b86a3799f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24968 pid:6342 ppid:5076 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x196c/0x4af0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x703/0xa40 kernel/locking/rwsem.c:1522
__super_lock fs/super.c:58 [inline]
super_lock+0x176/0x390 fs/super.c:117
super_lock_shared fs/super.c:146 [inline]
iterate_supers+0x8c/0x180 fs/super.c:966
quota_sync_all fs/quota/quota.c:69 [inline]
__do_sys_quotactl fs/quota/quota.c:938 [inline]
__se_sys_quotactl+0x391/0xa30 fs/quota/quota.c:917
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f07ec07cae9
RSP: 002b:00007f07ece840c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f07ec19bf80 RCX: 00007f07ec07cae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000100
RBP: 00007f07ec0c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f07ec19bf80 R15: 00007ffce116f4c8
INFO: task syz-executor.1:6345 blocked for more than 144 seconds.
Not tainted 6.6.0-rc5-syzkaller-00055-g1c8b86a3799f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25128 pid:6345 ppid:5061 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x196c/0x4af0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x703/0xa40 kernel/locking/rwsem.c:1522
__super_lock fs/super.c:58 [inline]
super_lock+0x176/0x390 fs/super.c:117
super_lock_shared fs/super.c:146 [inline]
iterate_supers+0x8c/0x180 fs/super.c:966
quota_sync_all fs/quota/quota.c:69 [inline]
__do_sys_quotactl fs/quota/quota.c:938 [inline]
__se_sys_quotactl+0x391/0xa30 fs/quota/quota.c:917
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2d1247cae9
RSP: 002b:00007f2d132810c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f2d1259bf80 RCX: 00007f2d1247cae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000100
RBP: 00007f2d124c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f2d1259bf80 R15: 00007fff365266b8
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8d32c420 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
#0: ffffffff8d32c420 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline]
#0: ffffffff8d32c420 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6613
2 locks held by kworker/u4:2/39:
2 locks held by getty/4784:
#0: ffff88802aba20a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1dc0 drivers/tty/n_tty.c:2206
1 lock held by syz-executor.4/5075:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:513
1 lock held by syz-executor.3/6334:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.2/6338:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.0/6340:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.5/6342:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.1/6345:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.2/6408:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.3/6415:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.0/6431:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.1/6434:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.5/6437:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.2/6479:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.3/6508:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.0/6523:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.1/6526:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
1 lock held by syz-executor.5/6528:
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880342fa0e0 (&type->s_umount_key#60){++++}-{3:3}, at: super_lock+0x176/0x390 fs/super.c:117
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.6.0-rc5-syzkaller-00055-g1c8b86a3799f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfa9/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4474 Comm: klogd Not tainted 6.6.0-rc5-syzkaller-00055-g1c8b86a3799f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:trace_sk_data_ready include/trace/events/sock.h:266 [inline]
RIP: 0010:sock_def_readable+0x9e/0x440 net/core/sock.c:3319
Code: 0f 92 c3 bf 02 00 00 00 89 de e8 ad 08 e0 f8 31 ff 89 de e8 a4 08 e0 f8 40 84 ed 74 14 e8 7a 71 c8 f8 84 c0 0f 84 6f 02 00 00 fd 05 e0 f8 eb 05 e8 f6 05 e0 f8 e8 11 43 c9 f8 4c 8d 3d 00 00
RSP: 0018:ffffc9000315fac8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff88ae04b6
RDX: ffff88807e6e8000 RSI: ffffffff8b5982c0 RDI: ffffffff8b598280
RBP: 0000000000000001 R08: ffffffff88ae04dc R09: 1ffffffff1d34645
R10: dffffc0000000000 R11: fffffbfff1d34646 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88807f23a800 R15: ffffc9000315fc00
FS: 00007f382c3a7380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000b4640c CR3: 0000000029c55000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unix_dgram_sendmsg+0x15b3/0x2070 net/unix/af_unix.c:2093
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
__sys_sendto+0x484/0x640 net/socket.c:2194
__do_sys_sendto net/socket.c:2206 [inline]
__se_sys_sendto net/socket.c:2202 [inline]
__x64_sys_sendto+0xde/0xf0 net/socket.c:2202
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f382c5099b5
Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff74ecb4e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f382c5099b5
RDX: 000000000000005f RSI: 000055db27628330 RDI: 0000000000000003
RBP: 000055db27620910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007f382c697212 R14: 00007fff74ecb5e8 R15: 0000000000000000