INFO: task syz-executor.3:7433 blocked for more than 143 seconds.
Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27160 pid:7433 tgid:7414 ppid:7129 flags:0x00000006
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_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
inode_lock include/linux/fs.h:795 [inline]
vfs_fileattr_set+0x139/0xd50 fs/ioctl.c:682
ioctl_setflags fs/ioctl.c:729 [inline]
do_vfs_ioctl+0x2089/0x2e50 fs/ioctl.c:867
__do_sys_ioctl fs/ioctl.c:902 [inline]
__se_sys_ioctl+0x81/0x170 fs/ioctl.c:890
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: 0033:0x7f3eb867dea9
RSP: 002b:00007f3eb943d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3eb87ac120 RCX: 00007f3eb867dea9
RDX: 00000000200001c0 RSI: 0000000040086602 RDI: 0000000000000009
RBP: 00007f3eb86ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3eb87ac120 R15: 00007ffe31185d88
INFO: task syz-executor.3:7434 blocked for more than 143 seconds.
Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28400 pid:7434 tgid:7414 ppid:7129 flags:0x00000006
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
inode_lock_shared include/linux/fs.h:805 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1708
walk_component fs/namei.c:2004 [inline]
link_path_walk+0x9ea/0xea0 fs/namei.c:2331
path_parentat fs/namei.c:2532 [inline]
__filename_parentat+0x263/0x6f0 fs/namei.c:2556
filename_parentat fs/namei.c:2574 [inline]
filename_create+0xf6/0x540 fs/namei.c:3873
do_mkdirat+0xbd/0x3a0 fs/namei.c:4138
__do_sys_mkdirat fs/namei.c:4161 [inline]
__se_sys_mkdirat fs/namei.c:4159 [inline]
__x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4159
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: 0033:0x7f3eb867dea9
RSP: 002b:00007f3eb941c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f3eb87ac1f0 RCX: 00007f3eb867dea9
RDX: 00000000000001ff RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 00007f3eb86ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3eb87ac1f0 R15: 00007ffe31185d88
INFO: task syz-executor.3:7435 blocked for more than 144 seconds.
Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27632 pid:7435 tgid:7414 ppid:7129 flags:0x00000006
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
inode_lock_shared include/linux/fs.h:805 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1708
walk_component fs/namei.c:2004 [inline]
link_path_walk+0x9ea/0xea0 fs/namei.c:2331
path_lookupat+0xa9/0x450 fs/namei.c:2484
do_o_path+0x95/0x230 fs/namei.c:3770
path_openat+0x2aa0/0x3240 fs/namei.c:3792
do_filp_open+0x235/0x490 fs/namei.c:3826
do_sys_openat2+0x13e/0x1d0 fs/open.c:1406
do_sys_open fs/open.c:1421 [inline]
__do_sys_openat fs/open.c:1437 [inline]
__se_sys_openat fs/open.c:1432 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1432
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: 0033:0x7f3eb867dea9
RSP: 002b:00007f3eb93fb0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3eb87ac2c0 RCX: 00007f3eb867dea9
RDX: 0000000000200002 RSI: 0000000020000280 RDI: ffffffffffffff9c
RBP: 00007f3eb86ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3eb87ac2c0 R15: 00007ffe31185d88
INFO: task syz-executor.3:7436 blocked for more than 144 seconds.
Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:25112 pid:7436 tgid:7414 ppid:7129 flags:0x00000006
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
inode_lock_shared include/linux/fs.h:805 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1708
walk_component+0x2e1/0x410 fs/namei.c:2004
lookup_last fs/namei.c:2461 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2485
filename_lookup+0x256/0x610 fs/namei.c:2514
user_path_at_empty+0x42/0x60 fs/namei.c:2921
user_path_at include/linux/namei.h:57 [inline]
do_sys_truncate+0xa7/0x190 fs/open.c:132
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: 0033:0x7f3eb867dea9
RSP: 002b:00007f3eb93da0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007f3eb87ac390 RCX: 00007f3eb867dea9
RDX: 0000000000000000 RSI: 0000000000000fff RDI: 0000000020000000
RBP: 00007f3eb86ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3eb87ac390 R15: 00007ffe31185d88
Showing all locks held in the system:
4 locks held by kworker/u8:0/10:
#0: ffff88801b287148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
#0: ffff88801b287148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x17c0 kernel/workqueue.c:3335
#1: ffffc900000f7d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
#1: ffffc900000f7d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x17c0 kernel/workqueue.c:3335
#2: ffff88806fcee0e0 (&type->s_umount_key#53){++++}-{3:3}, at: super_trylock_shared+0x22/0xf0 fs/super.c:561
#3: ffff88805be5f0c8 (&jfs_ip->commit_mutex){+.+.}-{3:3}, at: jfs_commit_inode+0x24a/0x590 fs/jfs/inode.c:102
1 lock held by khungtaskd/29:
#0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4822:
#0: ffff88801630f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f0e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
4 locks held by syz-executor.3/7432:
2 locks held by syz-executor.3/7433:
#0: ffff88806fcee420 (sb_writers#14){.+.+}-{0:0}, at: mnt_want_write_file+0x61/0x200 fs/namespace.c:453
#1: ffff88805be5f480 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
#1: ffff88805be5f480 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: vfs_fileattr_set+0x139/0xd50 fs/ioctl.c:682
1 lock held by syz-executor.3/7434:
#0: ffff88805be5f480 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:805 [inline]
#0: ffff88805be5f480 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1708
1 lock held by syz-executor.3/7435:
#0: ffff88805be5f480 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:805 [inline]
#0: ffff88805be5f480 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1708
1 lock held by syz-executor.3/7436:
#0: ffff88805be5f480 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:805 [inline]
#0: ffff88805be5f480 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1708
2 locks held by syz-executor.4/7747:
#0: ffff88806fcee0e0 (&type->s_umount_key#53){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88806fcee0e0 (&type->s_umount_key#53){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff88801fef87d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:389 [inline]
#1: ffff88801fef87d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb20 fs/fs-writeback.c:2781
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #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: 50 Comm: kworker/u8:3 Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:hlock_class kernel/locking/lockdep.c:228 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4774 [inline]
RIP: 0010:__lock_acquire+0x5d2/0x1fd0 kernel/locking/lockdep.c:5087
Code: 41 8b 1f 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 00 e5 ef 92 be 08 00 00 00 e8 76 cc 84 00 48 0f a3 1d 9e 5e 7d 11 <73> 22 48 69 c3 c8 00 00 00 48 8d 98 00 44 be 92 48 ba 00 00 00 00
RSP: 0018:ffffc90000ba78f0 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000021 RCX: ffffffff8172865a
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff92efe500
RBP: 0000000000000002 R08: ffffffff92efe507 R09: 1ffffffff25dfca0
R10: dffffc0000000000 R11: fffffbfff25dfca1 R12: 0000000000000000
R13: ffff88801d2c3c00 R14: 000000000000000a R15: ffff88801d2c4748
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb9e1fa2866 CR3: 000000000e134000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
rcu_read_lock include/linux/rcupdate.h:781 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xec/0x610 net/batman-adv/network-coding.c:719
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3335
worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
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