INFO: task syz-executor.3:16736 blocked for more than 143 seconds.
Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24664 pid:16736 tgid:16735 ppid:15438 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
jfs_flush_journal+0x72c/0xec0 fs/jfs/jfs_logmgr.c:1564
jfs_sync_fs+0x80/0xa0 fs/jfs/super.c:684
sync_filesystem+0x1c8/0x230 fs/sync.c:66
jfs_remount+0x136/0x6b0 fs/jfs/super.c:432
reconfigure_super+0x445/0x880 fs/super.c:1071
vfs_cmd_reconfigure fs/fsopen.c:267 [inline]
vfs_fsconfig_locked fs/fsopen.c:296 [inline]
__do_sys_fsconfig fs/fsopen.c:476 [inline]
__se_sys_fsconfig+0xab5/0xec0 fs/fsopen.c:349
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdfc1e7dd29
RSP: 002b:00007fdfc2b800c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007fdfc1fabf80 RCX: 00007fdfc1e7dd29
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000005
RBP: 00007fdfc1eca47e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fdfc1fabf80 R15: 00007ffefe5506b8
INFO: task syz-executor.3:16772 blocked for more than 144 seconds.
Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24088 pid:16772 tgid:16735 ppid:15438 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
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
__super_lock fs/super.c:58 [inline]
super_lock+0x27c/0x400 fs/super.c:120
super_lock_shared fs/super.c:139 [inline]
iterate_supers+0x8c/0x190 fs/super.c:919
ksys_sync+0xbd/0x1c0 fs/sync.c:102
__do_sys_sync+0xe/0x20 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdfc1e7dd29
RSP: 002b:00007fdfc2b5f0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fdfc1fac050 RCX: 00007fdfc1e7dd29
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fdfc1eca47e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fdfc1fac050 R15: 00007ffefe5506b8
INFO: task syz-executor.0:16776 blocked for more than 144 seconds.
Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:23640 pid:16776 tgid:16775 ppid:16330 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
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
__super_lock fs/super.c:58 [inline]
super_lock+0x27c/0x400 fs/super.c:120
super_lock_shared fs/super.c:139 [inline]
iterate_supers+0x8c/0x190 fs/super.c:919
drop_caches_sysctl_handler+0x8c/0x160 fs/drop_caches.c:64
proc_sys_call_handler+0x551/0x8b0 fs/proc/proc_sysctl.c:595
call_write_iter include/linux/fs.h:2110 [inline]
iter_file_splice_write+0xbd7/0x14e0 fs/splice.c:743
do_splice_from fs/splice.c:941 [inline]
direct_splice_actor+0x11e/0x220 fs/splice.c:1164
splice_direct_to_actor+0x58e/0xc90 fs/splice.c:1108
do_splice_direct_actor fs/splice.c:1207 [inline]
do_splice_direct+0x28c/0x3e0 fs/splice.c:1233
do_sendfile+0x56d/0xdc0 fs/read_write.c:1295
__do_sys_sendfile64 fs/read_write.c:1356 [inline]
__se_sys_sendfile64+0x100/0x1e0 fs/read_write.c:1348
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f442aa7dd29
RSP: 002b:00007f442b7d40c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f442ababf80 RCX: 00007f442aa7dd29
RDX: 0000000020002080 RSI: 0000000000000009 RDI: 000000000000000a
RBP: 00007f442aaca47e R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000023b R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f442ababf80 R15: 00007ffc682d07e8
Showing all locks held in the system:
3 locks held by kworker/u8:0/10:
#0: ffff8880b953e658 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
#1: ffff8880b9528948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:988
#2: ffff8880176d2810 (&p->pi_lock){-.-.}-{2:2}, at: class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:553 [inline]
#2: ffff8880176d2810 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xb0/0x1470 kernel/sched/core.c:4262
1 lock held by khungtaskd/29:
#0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
3 locks held by kworker/u8:2/34:
#0: ffff88802a1ee948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3242 [inline]
#0: ffff88802a1ee948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x17c0 kernel/workqueue.c:3348
#1: ffffc90000aa7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3243 [inline]
#1: ffffc90000aa7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x17c0 kernel/workqueue.c:3348
#2: ffffffff8f594508 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4192
2 locks held by getty/4825:
#0: ffff88802f7310a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000312b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
5 locks held by kworker/u8:10/10565:
#0: ffff888015ecb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3242 [inline]
#0: ffff888015ecb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x17c0 kernel/workqueue.c:3348
#1: ffffc90009acfd00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3243 [inline]
#1: ffffc90009acfd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x17c0 kernel/workqueue.c:3348
#2: ffffffff8f587e10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:591
#3: ffff8880692e5408 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_destruct+0x110/0x2e0 drivers/net/wireguard/device.c:249
#4: ffffffff8e33a138 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#4: ffffffff8e33a138 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x39a/0x820 kernel/rcu/tree_exp.h:939
2 locks held by syz-executor.3/16736:
#0: ffff88802b818c70 (&fc->uapi_mutex){+.+.}-{3:3}, at: __do_sys_fsconfig fs/fsopen.c:474 [inline]
#0: ffff88802b818c70 (&fc->uapi_mutex){+.+.}-{3:3}, at: __se_sys_fsconfig+0x8e6/0xec0 fs/fsopen.c:349
#1: ffff888048afa0e0 (&type->s_umount_key#87){++++}-{3:3}, at: vfs_cmd_reconfigure fs/fsopen.c:266 [inline]
#1: ffff888048afa0e0 (&type->s_umount_key#87){++++}-{3:3}, at: vfs_fsconfig_locked fs/fsopen.c:296 [inline]
#1: ffff888048afa0e0 (&type->s_umount_key#87){++++}-{3:3}, at: __do_sys_fsconfig fs/fsopen.c:476 [inline]
#1: ffff888048afa0e0 (&type->s_umount_key#87){++++}-{3:3}, at: __se_sys_fsconfig+0xaab/0xec0 fs/fsopen.c:349
1 lock held by syz-executor.3/16772:
#0: ffff888048afa0e0 (&type->s_umount_key#87){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888048afa0e0 (&type->s_umount_key#87){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
2 locks held by syz-executor.0/16776:
#0: ffff88802fe56420 (sb_writers#3){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x220 fs/splice.c:1163
#1: ffff888048afa0e0 (&type->s_umount_key#87){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#1: ffff888048afa0e0 (&type->s_umount_key#87){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
2 locks held by syz-executor.3/17442:
#0: ffff88802fe56420 (sb_writers#3){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x220 fs/splice.c:1163
#1: ffff888048afa0e0 (&type->s_umount_key#87){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#1: ffff888048afa0e0 (&type->s_umount_key#87){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
1 lock held by syz-executor.3/18346:
#0: ffff888048afa0e0 (&type->s_umount_key#87){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888048afa0e0 (&type->s_umount_key#87){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
1 lock held by syz-executor.2/18773:
#0: ffff88807d46c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88807d46c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88807d46c0e0 (&type->s_umount_key#76){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:504
1 lock held by syz-executor.0/19155:
#0: ffffffff8f594508 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f594508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x10d0 net/core/rtnetlink.c:6592
1 lock held by syz-executor.4/19254:
#0: ffffffff8f594508 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f594508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x10d0 net/core/rtnetlink.c:6592
2 locks held by syz-executor.3/19420:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfde/0x1020 kernel/hung_task.c:380
kthread+0x2f0/0x390 kernel/kthread.c:388
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: 10 Comm: kworker/u8:0 Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:lockdep_softirqs_off+0xc/0x440 kernel/locking/lockdep.c:4514
Code: 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 41 57 41 56 <41> 55 41 54 53 48 83 e4 e0 48 81 ec 80 00 00 00 48 89 7c 24 18 65
RSP: 0018:ffffc900000f79a0 EFLAGS: 00000046
RAX: 0000000080000000 RBX: ffffc900000f7a00 RCX: 0000000000000010
RDX: 1ffff11004788711 RSI: 0000000000000201 RDI: ffffffff8b42db78
RBP: ffffc900000f79b0 R08: ffffffff92efe5df R09: 1ffffffff25dfcbb
R10: dffffc0000000000 R11: fffffbfff25dfcbc R12: dffffc0000000000
R13: 1ffff9200001ef3c R14: 0000000000000246 R15: 0000000000000201
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a1c260f131 CR3: 00000000565da000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__local_bh_disable_ip+0xfb/0x220 kernel/softirq.c:322
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:125 [inline]
_raw_spin_lock_bh+0x1c/0x50 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
batadv_nc_purge_paths+0xe8/0x3b0 net/batman-adv/network-coding.c:442
batadv_nc_worker+0x328/0x610 net/batman-adv/network-coding.c:720
process_one_work kernel/workqueue.c:3267 [inline]
process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3348
worker_thread+0x86d/0xd70 kernel/workqueue.c:3429
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244