INFO: task syz.2.9:5950 blocked for more than 143 seconds.
Not tainted 6.14.0-rc5-syzkaller-00137-g00a7d39898c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.9 state:D stack:12688 pid:5950 tgid:5949 ppid:5827 task_flags:0x440140 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
__bch2_two_state_lock+0x229/0x2c0 fs/bcachefs/two_state_shared_lock.c:7
bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:55 [inline]
bch2_readahead+0x9e1/0x1240 fs/bcachefs/fs-io-buffered.c:272
read_pages+0x179/0x570 mm/readahead.c:161
page_cache_ra_order+0xa36/0xca0 mm/readahead.c:516
filemap_readahead mm/filemap.c:2549 [inline]
filemap_get_pages+0x9e4/0x1fb0 mm/filemap.c:2594
filemap_splice_read+0x68e/0xef0 mm/filemap.c:2970
do_splice_read fs/splice.c:985 [inline]
splice_direct_to_actor+0x4af/0xc80 fs/splice.c:1089
do_splice_direct_actor fs/splice.c:1207 [inline]
do_splice_direct+0x289/0x3e0 fs/splice.c:1233
do_sendfile+0x564/0x8a0 fs/read_write.c:1363
__do_sys_sendfile64 fs/read_write.c:1424 [inline]
__se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1410
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: 0033:0x7fb59798d169
RSP: 002b:00007fb598866038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fb597ba5fa0 RCX: 00007fb59798d169
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000005
RBP: 00007fb597a0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb597ba5fa0 R15: 00007ffd15ee8ba8
INFO: task syz.2.9:5989 blocked for more than 144 seconds.
Not tainted 6.14.0-rc5-syzkaller-00137-g00a7d39898c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.9 state:D
stack:22384 pid:5989 tgid:5949 ppid:5827 task_flags:0x400040 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
io_schedule+0x8d/0x110 kernel/sched/core.c:7690
folio_wait_bit_common+0x839/0xee0 mm/filemap.c:1318
folio_lock include/linux/pagemap.h:1163 [inline]
bch2_mark_pagecache_unallocated+0x3f3/0x9b0 fs/bcachefs/fs-io-pagecache.c:275
bch2_remap_file_range+0x7d3/0xf70 fs/bcachefs/fs-io.c:907
vfs_clone_file_range+0x439/0x7b0 fs/remap_range.c:403
ioctl_file_clone fs/ioctl.c:240 [inline]
ioctl_file_clone_range fs/ioctl.c:258 [inline]
do_vfs_ioctl+0x126b/0x2770 fs/ioctl.c:853
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl+0x80/0x170 fs/ioctl.c:892
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: 0033:0x7fb59798d169
RSP: 002b:00007fb598845038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fb597ba6080 RCX: 00007fb59798d169
RDX: 0000400000000440 RSI: 000000004020940d RDI: 0000000000000008
RBP: 00007fb597a0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb597ba6080 R15: 00007ffd15ee8ba8
INFO: task syz.2.9:5992 blocked for more than 145 seconds.
Not tainted 6.14.0-rc5-syzkaller-00137-g00a7d39898c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.9 state:D stack:26032 pid:5992 tgid:5949 ppid:5827 task_flags:0x400140 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:877 [inline]
process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
ima_file_check+0xd9/0x120 security/integrity/ima/ima_main.c:603
security_file_post_open+0xb9/0x280 security/security.c:3130
do_open fs/namei.c:3832 [inline]
path_openat+0x2cca/0x3590 fs/namei.c:3989
do_filp_open+0x27f/0x4e0 fs/namei.c:4016
do_sys_openat2+0x13e/0x1d0 fs/open.c:1428
do_sys_open fs/open.c:1443 [inline]
__do_sys_open fs/open.c:1451 [inline]
__se_sys_open fs/open.c:1447 [inline]
__x64_sys_open+0x225/0x270 fs/open.c:1447
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: 0033:0x7fb59798d169
RSP: 002b:00007fb598824038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fb597ba6160 RCX: 00007fb59798d169
RDX: 0000000000000006 RSI: 000000000014927e RDI: 00004000000000c0
RBP: 00007fb597a0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fb597ba6160 R15: 00007ffd15ee8ba8
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8eb392e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8eb392e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8eb392e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6746
1 lock held by kworker/u8:3/52:
#0: ffff8880b873e7d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
2 locks held by getty/5589:
#0: ffff8880314dc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002fee2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x616/0x1770 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/5821:
1 lock held by syz.2.9/5950:
#0: ffff88805c558a80 (mapping.invalidate_lock#3){.+.+}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:932 [inline]
#0: ffff88805c558a80 (mapping.invalidate_lock#3){.+.+}-{4:4}, at: page_cache_ra_order+0x45d/0xca0 mm/readahead.c:492
3 locks held by syz.2.9/5989:
#0: ffff88805e978420 (sb_writers#16){.+.+}-{0:0}, at: ioctl_file_clone fs/ioctl.c:240 [inline]
#0: ffff88805e978420 (sb_writers#16){.+.+}-{0:0}, at: ioctl_file_clone_range fs/ioctl.c:258 [inline]
#0: ffff88805e978420 (sb_writers#16){.+.+}-{0:0}, at: do_vfs_ioctl+0x126b/0x2770 fs/ioctl.c:853
#1: ffff88805c5588e0 (&sb->s_type->i_mutex_key#23){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline]
#1: ffff88805c5588e0 (&sb->s_type->i_mutex_key#23){+.+.}-{4:4}, at: lock_two_nondirectories+0xe1/0x170 fs/inode.c:1281
#2: ffff88805c559078 (&sb->s_type->i_mutex_key#23/4){+.+.}-{4:4}, at: bch2_remap_file_range+0x32a/0xf70 fs/bcachefs/fs-io.c:880
2 locks held by syz.2.9/5992:
#0: ffff88805e978420 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:547
#1: ffff88805c5588e0 (&sb->s_type->i_mutex_key#23){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline]
#1: ffff88805c5588e0 (&sb->s_type->i_mutex_key#23){+.+.}-{4:4}, at: process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
2 locks held by syz-executor/7090:
1 lock held by syz-executor/8020:
#0: ffffffff8eb3e7b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:334 [inline]
#0: ffffffff8eb3e7b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x820 kernel/rcu/tree_exp.h:996
1 lock held by udevadm/8756:
4 locks held by dhcpcd-run-hook/8762:
#0: ffff8880b873e7d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
#1: ffff8880b8728948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x41d/0x7a0 kernel/sched/psi.c:987
#2: ffffffff8f3868b0 (input_pool.lock){..-.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline]
#2: ffffffff8f3868b0 (input_pool.lock){..-.}-{3:3}, at: write_seqlock include/linux/seqlock.h:876 [inline]
#2: ffffffff8f3868b0 (input_pool.lock){..-.}-{3:3}, at: __exit_signal kernel/exit.c:187 [inline]
#2: ffffffff8f3868b0 (input_pool.lock){..-.}-{3:3}, at: release_task+0x83a/0x1830 kernel/exit.c:257
#3: ffff888035a36428 (&p->pi_lock){-.-.}-{2:2}, at: class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:551 [inline]
#3: ffff888035a36428 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xc2/0x1470 kernel/sched/core.c:4214
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.14.0-rc5-syzkaller-00137-g00a7d39898c8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
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:236 [inline]
watchdog+0x1058/0x10a0 kernel/hung_task.c:399
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
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 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.14.0-rc5-syzkaller-00137-g00a7d39898c8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:kasan_check_range+0x5/0x290 mm/kasan/generic.c:188
Code: 8e e8 ef bb e3 ff 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 <41> 57 41 56 41 54 53 b0 01 48 85 f6 0f 84 a0 01 00 00 4c 8d 04 37
RSP: 0018:ffffc900001077d0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff819ce9b0
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff903bcb70
RBP: ffffc90000107910 R08: ffffffff8bc70634 R09: 1ffffffff28a2908
R10: dffffc0000000000 R11: fffffbfff28a2909 R12: 1ffff92000020f08
R13: ffffffff8bc703ee R14: dffffc0000000000 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79f2d3a290 CR3: 000000007d910000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
cpumask_test_cpu include/linux/cpumask.h:570 [inline]
cpu_online include/linux/cpumask.h:1116 [inline]
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0xb0/0xa30 kernel/locking/lockdep.c:5862
rcu_lock_release include/linux/rcupdate.h:347 [inline]
rcu_read_unlock include/linux/rcupdate.h:880 [inline]
batadv_iv_ogm_slide_own_bcast_window net/batman-adv/bat_iv_ogm.c:771 [inline]
batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:825 [inline]
batadv_iv_ogm_schedule+0x6f3/0x10a0 net/batman-adv/bat_iv_ogm.c:868
batadv_iv_send_outstanding_bat_ogm_packet+0x6fe/0x810 net/batman-adv/bat_iv_ogm.c:1712
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244