INFO: task syz.3.130:6532 blocked for more than 143 seconds.
Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.130 state:D stack:27392 pid:6532 tgid:6530 ppid:5927 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
__fdget_pos+0x24e/0x310 fs/file.c:1187
fdget_pos include/linux/file.h:76 [inline]
__do_sys_getdents fs/readdir.c:320 [inline]
__se_sys_getdents+0x1c3/0x4d0 fs/readdir.c:309
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: 0033:0x7fa346b7def9
RSP: 002b:00007fa3465de038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007fa346d36058 RCX: 00007fa346b7def9
RDX: 00000000000000b8 RSI: 0000000020001fc0 RDI: 0000000000000005
RBP: 00007fa346bf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fa346d36058 R15: 00007ffe6c6ea338
INFO: task syz.3.130:6534 blocked for more than 143 seconds.
Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.130 state:D stack:27392 pid:6534 tgid:6530 ppid:5927 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
inode_lock include/linux/fs.h:800 [inline]
open_last_lookups fs/namei.c:3644 [inline]
path_openat+0x7fb/0x3470 fs/namei.c:3883
do_filp_open+0x235/0x490 fs/namei.c:3913
do_sys_openat2+0x13e/0x1d0 fs/open.c:1416
do_sys_open fs/open.c:1431 [inline]
__do_sys_openat fs/open.c:1447 [inline]
__se_sys_openat fs/open.c:1442 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1442
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: 0033:0x7fa346b7def9
RSP: 002b:00007fa34659c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fa346d36208 RCX: 00007fa346b7def9
RDX: 000000000000275a RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 00007fa346bf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa346d36208 R15: 00007ffe6c6ea338
INFO: task syz.3.130:6535 blocked for more than 144 seconds.
Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.130 state:D stack:24992 pid:6535 tgid:6530 ppid:5927 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write_nested+0x1e0/0x220 kernel/locking/rwsem.c:1696
inode_lock_nested include/linux/fs.h:835 [inline]
filename_create+0x260/0x540 fs/namei.c:3979
do_mknodat+0x18b/0x5b0 fs/namei.c:4125
__do_sys_mknod fs/namei.c:4171 [inline]
__se_sys_mknod fs/namei.c:4169 [inline]
__x64_sys_mknod+0x8c/0xa0 fs/namei.c:4169
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: 0033:0x7fa346b7def9
RSP: 002b:00007fa34657b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007fa346d362e0 RCX: 00007fa346b7def9
RDX: 0000000000000707 RSI: 0000000000001000 RDI: 0000000020000680
RBP: 00007fa346bf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa346d362e0 R15: 00007ffe6c6ea338
INFO: task syz.3.130:6536 blocked for more than 145 seconds.
Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.130 state:D stack:27392 pid:6536 tgid:6530 ppid:5927 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
inode_lock include/linux/fs.h:800 [inline]
open_last_lookups fs/namei.c:3644 [inline]
path_openat+0x7fb/0x3470 fs/namei.c:3883
do_filp_open+0x235/0x490 fs/namei.c:3913
do_sys_openat2+0x13e/0x1d0 fs/open.c:1416
do_sys_open fs/open.c:1431 [inline]
__do_sys_creat fs/open.c:1507 [inline]
__se_sys_creat fs/open.c:1501 [inline]
__x64_sys_creat+0x123/0x170 fs/open.c:1501
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: 0033:0x7fa346b7def9
RSP: 002b:00007fa34655a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fa346d363b8 RCX: 00007fa346b7def9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000580
RBP: 00007fa346bf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa346d363b8 R15: 00007ffe6c6ea338
INFO: task syz.3.130:6541 blocked for more than 146 seconds.
Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.130 state:D stack:27392 pid:6541 tgid:6530 ppid:5927 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
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:810 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1734
walk_component fs/namei.c:2039 [inline]
link_path_walk+0x99b/0xea0 fs/namei.c:2404
path_parentat fs/namei.c:2613 [inline]
__filename_parentat+0x263/0x6f0 fs/namei.c:2637
filename_parentat fs/namei.c:2655 [inline]
do_renameat2+0x3b8/0x13f0 fs/namei.c:5035
__do_sys_rename fs/namei.c:5170 [inline]
__se_sys_rename fs/namei.c:5168 [inline]
__x64_sys_rename+0x82/0x90 fs/namei.c:5168
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: 0033:0x7fa346b7def9
RSP: 002b:00007fa346539038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fa346d36490 RCX: 00007fa346b7def9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000020000040
RBP: 00007fa346bf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fa346d36490 R15: 00007ffe6c6ea338
Showing all locks held in the system:
3 locks held by kworker/u8:1/12:
#0: ffff88802f9a7148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88802f9a7148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90000117d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90000117d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffffffff8fa79e08 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4194
1 lock held by khungtaskd/30:
#0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6626
2 locks held by jfsCommit/113:
#0: ffff888031fe0920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x37c/0x2fb0 fs/jfs/jfs_imap.c:889
#1: ffff88805018af50 (&jfs_ip->rdwrlock/1){++++}-{3:3}, at: diFree+0x398/0x2fb0 fs/jfs/jfs_imap.c:894
2 locks held by getty/4975:
#0: ffff88803021a0a0 (&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+0x6ac/0x1e00 drivers/tty/n_tty.c:2211
2 locks held by syz.3.130/6531:
1 lock held by syz.3.130/6532:
#0: ffff888033b939c8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x310 fs/file.c:1187
1 lock held by syz.3.130/6533:
1 lock held by syz.3.130/6534:
#0: ffff88805a4cc180 (&type->i_mutex_dir_key#18){++++}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline]
#0: ffff88805a4cc180 (&type->i_mutex_dir_key#18){++++}-{3:3}, at: open_last_lookups fs/namei.c:3644 [inline]
#0: ffff88805a4cc180 (&type->i_mutex_dir_key#18){++++}-{3:3}, at: path_openat+0x7fb/0x3470 fs/namei.c:3883
1 lock held by syz.3.130/6535:
#0: ffff88805a4cc180 (&type->i_mutex_dir_key#17/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:835 [inline]
#0: ffff88805a4cc180 (&type->i_mutex_dir_key#17/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3979
1 lock held by syz.3.130/6536:
#0: ffff88805a4cc180 (&type->i_mutex_dir_key#18){++++}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline]
#0: ffff88805a4cc180 (&type->i_mutex_dir_key#18){++++}-{3:3}, at: open_last_lookups fs/namei.c:3644 [inline]
#0: ffff88805a4cc180 (&type->i_mutex_dir_key#18){++++}-{3:3}, at: path_openat+0x7fb/0x3470 fs/namei.c:3883
1 lock held by syz.3.130/6541:
#0: ffff88805a4cc180 (&type->i_mutex_dir_key#18){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:810 [inline]
#0: ffff88805a4cc180 (&type->i_mutex_dir_key#18){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1734
1 lock held by syz-executor/6811:
#0: ffff88807dab00e0 (&type->s_umount_key#105){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88807dab00e0 (&type->s_umount_key#105){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88807dab00e0 (&type->s_umount_key#105){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz.0.267/7828:
#0: ffff88807dab00e0 (&type->s_umount_key#105){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88807dab00e0 (&type->s_umount_key#105){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
3 locks held by syz-executor/8171:
#0: ffffffff8fa79e08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fa79e08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
#1: ffff88807fcf1428 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_open+0x22d/0x420 drivers/net/wireguard/device.c:50
#2: ffffffff8e73d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:328 [inline]
#2: ffffffff8e73d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:958
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
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+0xff4/0x1040 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6531 Comm: syz.3.130 Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:unwind_next_frame+0x1d9a/0x2a00 arch/x86/kernel/unwind_orc.c:665
Code: 8c 00 00 00 89 de e8 55 49 52 00 41 39 de 0f 85 c4 00 00 00 48 8b 44 24 58 42 80 3c 28 00 74 0a 48 8b 7c 24 50 e8 26 6b b6 00 <4c> 8b 65 38 48 8d 7d 08 48 89 f8 48 c1 e8 03 42 80 3c 28 00 74 05
RSP: 0018:ffffc9000323e468 EFLAGS: 00000246
RAX: 1ffff92000647caf RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffff888025b21e00 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc9000323e540 R08: ffffffff814144cb R09: ffffffff814140bf
R10: 0000000000000003 R11: ffff888025b21e00 R12: ffffc9000323ff08
R13: dffffc0000000000 R14: 0000000000000001 R15: 1ffff92000647ca8
FS: 00007fa3465ff6c0(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffefdf50fb8 CR3: 000000005d5f8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x430 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1101 [inline]
free_unref_folios+0x100f/0x1ac0 mm/page_alloc.c:2667
shrink_folio_list+0x83d3/0x8ee0 mm/vmscan.c:1530
shrink_inactive_list mm/vmscan.c:1939 [inline]
shrink_list mm/vmscan.c:2174 [inline]
shrink_lruvec+0x16e3/0x2eb0 mm/vmscan.c:5686
shrink_node_memcgs mm/vmscan.c:5888 [inline]
shrink_node+0x12a4/0x2df0 mm/vmscan.c:5928
shrink_zones mm/vmscan.c:6172 [inline]
do_try_to_free_pages+0x69d/0x1b20 mm/vmscan.c:6234
try_to_free_mem_cgroup_pages+0x4ab/0xb20 mm/vmscan.c:6566
try_charge_memcg+0x8c2/0x1170 mm/memcontrol.c:2210
try_charge mm/memcontrol-v1.h:20 [inline]
charge_memcg+0xa2/0x160 mm/memcontrol.c:4438
__mem_cgroup_charge+0x27/0x80 mm/memcontrol.c:4453
mem_cgroup_charge include/linux/memcontrol.h:672 [inline]
filemap_add_folio+0xb3/0x650 mm/filemap.c:965
do_read_cache_folio+0x10a/0x820 mm/filemap.c:3756
do_read_cache_page+0x30/0x200 mm/filemap.c:3855
read_mapping_page include/linux/pagemap.h:907 [inline]
dir_get_page fs/sysv/dir.c:64 [inline]
sysv_readdir+0x190/0x3e0 fs/sysv/dir.c:92
iterate_dir+0x57a/0x810 fs/readdir.c:108
__do_sys_getdents fs/readdir.c:324 [inline]
__se_sys_getdents+0x1ef/0x4d0 fs/readdir.c:309
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: 0033:0x7fa346b7def9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa3465ff038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007fa346d35f80 RCX: 00007fa346b7def9
RDX: 00000000000000b8 RSI: 0000000020001fc0 RDI: 0000000000000005
RBP: 00007fa346bf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa346d35f80 R15: 00007ffe6c6ea338