INFO: task syz.3.1432:19412 blocked for more than 143 seconds.
Not tainted 6.10.0-rc6-syzkaller-00061-ge9d22f7a6655 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.1432 state:D stack:22992 pid:19412 tgid:19409 ppid:18950 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
io_schedule+0x8d/0x110 kernel/sched/core.c:9043
folio_wait_bit_common+0x882/0x12b0 mm/filemap.c:1307
release_metapage+0x8c/0x870 fs/jfs/jfs_metapage.c:764
discard_metapage fs/jfs/jfs_metapage.h:88 [inline]
__get_metapage+0xb1d/0x1050 fs/jfs/jfs_metapage.c:644
jfs_readdir+0x2945/0x4660 fs/jfs/jfs_dtree.c:3018
wrap_directory_iterator+0x94/0xe0 fs/readdir.c:67
iterate_dir+0x57a/0x810 fs/readdir.c:110
__do_sys_getdents fs/readdir.c:326 [inline]
__se_sys_getdents+0x1ef/0x4d0 fs/readdir.c:311
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f050bd75f19
RSP: 002b:00007f050cb42048 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007f050bf03f60 RCX: 00007f050bd75f19
RDX: 0000000000000068 RSI: 0000000020000300 RDI: 0000000000000006
RBP: 00007f050bde4bcd R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f050bf03f60 R15: 00007ffdd8275be8
INFO: task syz.3.1432:19440 blocked for more than 143 seconds.
Not tainted 6.10.0-rc6-syzkaller-00061-ge9d22f7a6655 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.1432 state:D stack:26208 pid:19440 tgid:19409 ppid:18950 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
inode_lock_nested include/linux/fs.h:826 [inline]
filename_create+0x260/0x540 fs/namei.c:3906
do_mknodat+0x18b/0x5b0 fs/namei.c:4052
__do_sys_mknodat fs/namei.c:4093 [inline]
__se_sys_mknodat fs/namei.c:4090 [inline]
__x64_sys_mknodat+0xa9/0xc0 fs/namei.c:4090
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f050bd75f19
RSP: 002b:00007f050cb21048 EFLAGS: 00000246 ORIG_RAX: 0000000000000103
RAX: ffffffffffffffda RBX: 00007f050bf04038 RCX: 00007f050bd75f19
RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 00007f050bde4bcd R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000103 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f050bf04038 R15: 00007ffdd8275be8
INFO: task syz.3.1432:19442 blocked for more than 144 seconds.
Not tainted 6.10.0-rc6-syzkaller-00061-ge9d22f7a6655 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.1432 state:D stack:27392 pid:19442 tgid:19409 ppid:18950 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
inode_lock_nested include/linux/fs.h:826 [inline]
filename_create+0x260/0x540 fs/namei.c:3906
do_mkdirat+0xbd/0x3a0 fs/namei.c:4152
__do_sys_mkdir fs/namei.c:4180 [inline]
__se_sys_mkdir fs/namei.c:4178 [inline]
__x64_sys_mkdir+0x6e/0x80 fs/namei.c:4178
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f050bd75f19
RSP: 002b:00007f050cb00048 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f050bf04110 RCX: 00007f050bd75f19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00007f050bde4bcd R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f050bf04110 R15: 00007ffdd8275be8
INFO: task syz.3.1432:19449 blocked for more than 144 seconds.
Not tainted 6.10.0-rc6-syzkaller-00061-ge9d22f7a6655 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.1432 state:D stack:27392 pid:19449 tgid:19409 ppid:18950 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
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+0x705/0xa40 kernel/locking/rwsem.c:1528
inode_lock_shared include/linux/fs.h:801 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1708
walk_component+0x2e1/0x410 fs/namei.c:2004
lookup_last fs/namei.c:2469 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2493
do_o_path+0x95/0x230 fs/namei.c:3784
path_openat+0x2e53/0x35f0 fs/namei.c:3806
do_filp_open+0x235/0x490 fs/namei.c:3840
do_sys_openat2+0x13e/0x1d0 fs/open.c:1413
do_sys_open fs/open.c:1428 [inline]
__do_sys_open fs/open.c:1436 [inline]
__se_sys_open fs/open.c:1432 [inline]
__x64_sys_open+0x225/0x270 fs/open.c:1432
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f050bd75f19
RSP: 002b:00007f050cabe048 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f050bf042c0 RCX: 00007f050bd75f19
RDX: 0000000000000000 RSI: 0000000000769f42 RDI: 0000000020000240
RBP: 00007f050bde4bcd R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f050bf042c0 R15: 00007ffdd8275be8
INFO: task syz.3.1432:19452 blocked for more than 145 seconds.
Not tainted 6.10.0-rc6-syzkaller-00061-ge9d22f7a6655 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.1432 state:D stack:27392 pid:19452 tgid:19409 ppid:18950 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
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+0x705/0xa40 kernel/locking/rwsem.c:1528
inode_lock_shared include/linux/fs.h:801 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1708
walk_component+0x2e1/0x410 fs/namei.c:2004
lookup_last fs/namei.c:2469 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2493
filename_lookup+0x256/0x610 fs/namei.c:2522
user_path_at_empty+0x42/0x60 fs/namei.c:2929
user_path_at include/linux/namei.h:58 [inline]
do_mount fs/namespace.c:3689 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount+0x29a/0x3c0 fs/namespace.c:3875
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f050bd75f19
RSP: 002b:00007f050ca9d048 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f050bf04398 RCX: 00007f050bd75f19
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000280
RBP: 00007f050bde4bcd R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000005000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f050bf04398 R15: 00007ffdd8275be8
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
5 locks held by kworker/u8:3/51:
#0: ffff888015ed3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff888015ed3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc90000bb7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc90000bb7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffffffff8f5c8190 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594
#3: ffffffff8f5d49c8 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 net/core/dev.c:11746
#4: ffffffff8e3392f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#4: ffffffff8e3392f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:939
3 locks held by kworker/u8:6/2780:
#0: ffff88802ac55148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff88802ac55148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc900099f7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc900099f7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffffffff8f5d49c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4193
2 locks held by kworker/u8:9/2826:
1 lock held by dhcpcd/4749:
#0: ffffffff8f5d49c8 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2ce/0x1bc0 net/ipv4/devinet.c:1101
2 locks held by getty/4846:
#0: ffff88802b6bd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
3 locks held by kworker/1:3/5087:
#0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc9000361fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc9000361fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffffffff8f5d49c8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
2 locks held by syz.3.1432/19412:
#0: ffff88806cda4fc8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x310 fs/file.c:1191
#1: ffff888062c9d8c0 (&type->i_mutex_dir_key#15){++++}-{3:3}, at: wrap_directory_iterator+0x5d/0xe0 fs/readdir.c:56
1 lock held by syz.3.1432/19440:
#0: ffff888062c9d8c0 (&type->i_mutex_dir_key#15/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:826 [inline]
#0: ffff888062c9d8c0 (&type->i_mutex_dir_key#15/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3906
1 lock held by syz.3.1432/19442:
#0: ffff888062c9d8c0 (&type->i_mutex_dir_key#15/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:826 [inline]
#0: ffff888062c9d8c0 (&type->i_mutex_dir_key#15/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3906
1 lock held by syz.3.1432/19449:
#0: ffff888062c9d8c0 (&type->i_mutex_dir_key#15){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:801 [inline]
#0: ffff888062c9d8c0 (&type->i_mutex_dir_key#15){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1708
1 lock held by syz.3.1432/19452:
#0: ffff888062c9d8c0 (&type->i_mutex_dir_key#15){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:801 [inline]
#0: ffff888062c9d8c0 (&type->i_mutex_dir_key#15){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1708
2 locks held by syz-executor/20207:
1 lock held by syz-executor/20652:
#0: ffffffff8f5d49c8 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8f5d49c8 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3500
1 lock held by syz-executor/21008:
#0: ffffffff8f5d49c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f5d49c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
1 lock held by syz-executor/21235:
#0: ffffffff8f5d49c8 (rtnl_mutex){+.+.}-{3:3}, at: __tun_chr_ioctl+0x48f/0x2400 drivers/net/tun.c:3110
1 lock held by syz-executor/21283:
#0: ffffffff8f5d49c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f5d49c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc6-syzkaller-00061-ge9d22f7a6655 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfde/0x1020 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 20207 Comm: syz-executor Not tainted 6.10.0-rc6-syzkaller-00061-ge9d22f7a6655 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:mark_held_locks kernel/locking/lockdep.c:4274 [inline]
RIP: 0010:__trace_hardirqs_on_caller kernel/locking/lockdep.c:4292 [inline]
RIP: 0010:lockdep_hardirqs_on_prepare+0x27a/0x780 kernel/locking/lockdep.c:4359
Code: 89 e0 48 c1 e8 03 0f b6 04 10 84 c0 75 54 8b 43 20 a9 00 00 04 00 74 2c 31 d2 a9 00 00 03 00 0f 94 c2 83 f2 03 48 8b 7c 24 10 <48> 89 de e8 fe ab 00 00 48 ba 00 00 00 00 00 fc ff df 85 c0 0f 84
RSP: 0018:ffffc9000353f6a0 EFLAGS: 00000006
RAX: 00000000000504e7 RBX: ffff888028c3a908 RCX: ffffffff8172d91a
RDX: 0000000000000003 RSI: 0000000000000008 RDI: ffff888028c39e00
RBP: ffffc9000353f748 R08: ffffffff92f7162f R09: 1ffffffff25ee2c5
R10: dffffc0000000000 R11: fffffbfff25ee2c6 R12: ffff888028c3a928
R13: 0000000000000001 R14: ffff888028c3a8d8 R15: 1ffff1100518751b
FS: 00005555775d0500(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f342703f000 CR3: 000000007a1ae000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_hardirqs_on+0x28/0x40 kernel/trace/trace_preemptirq.c:61
percpu_counter_add_batch+0x21b/0x2f0 lib/percpu_counter.c:102
percpu_counter_add include/linux/percpu_counter.h:71 [inline]
percpu_counter_inc include/linux/percpu_counter.h:267 [inline]
ext4_es_lookup_extent+0x518/0xa90 fs/ext4/extents_status.c:1031
ext4_map_blocks+0x1f2/0x1d20 fs/ext4/inode.c:507
ext4_readdir+0xa1d/0x3500 fs/ext4/dir.c:181
iterate_dir+0x57a/0x810 fs/readdir.c:110
__do_sys_getdents64 fs/readdir.c:409 [inline]
__se_sys_getdents64+0x20d/0x4f0 fs/readdir.c:394
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fade7fa7fb3
Code: c1 66 0f 1f 44 00 00 48 83 c4 08 48 89 ef 5b 5d e9 d2 44 f8 ff 66 90 b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 a8 ff ff ff f7 d8
RSP: 002b:00007fffccbbb478 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 00005555776036c0 RCX: 00007fade7fa7fb3
RDX: 0000000000008000 RSI: 00005555776036c0 RDI: 0000000000000008
RBP: 0000555577603694 R08: 0000000000028981 R09: 0000000000000000
R10: 00007fade80d4ca0 R11: 0000000000000293 R12: ffffffffffffffa8
R13: 0000000000000016 R14: 0000555577603690 R15: 000000000000000b