INFO: task syz.5.155:7052 blocked for more than 143 seconds.
Not tainted 6.13.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.155 state:D stack:26544 pid:7052 tgid:7008 ppid:6444 flags:0x00000004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
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:818 [inline]
process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
ima_file_check+0xd9/0x120 security/integrity/ima/ima_main.c:572
security_file_post_open+0xb9/0x280 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x2ccd/0x3590 fs/namei.c:3987
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_creat fs/open.c:1495 [inline]
__se_sys_creat fs/open.c:1489 [inline]
__x64_sys_creat+0x123/0x170 fs/open.c:1489
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: 0033:0x7f43d5585d29
RSP: 002b:00007f43d6333038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f43d5776080 RCX: 00007f43d5585d29
RDX: 0000000000000000 RSI: 0000000000000028 RDI: 0000000020000080
RBP: 00007f43d5601b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f43d5776080 R15: 00007ffeac709df8
</TASK>
Showing all locks held in the system:
1 lock held by khungtaskd/31:
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
3 locks held by kworker/u8:4/70:
#0: ffff88814d531148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3211 [inline]
#0: ffff88814d531148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3317
#1: ffffc9000217fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3212 [inline]
#1: ffffc9000217fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3317
#2: ffffffff8fca3288 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4215
3 locks held by kworker/u8:7/1106:
2 locks held by dhcpcd/5487:
#0: ffffffff8fc88948 (vlan_ioctl_mutex){+.+.}-{4:4}, at: sock_ioctl+0x661/0x8e0 net/socket.c:1290
#1: ffffffff8fca3288 (rtnl_mutex){+.+.}-{4:4}, at: vlan_ioctl_handler+0x112/0x9d0 net/8021q/vlan.c:553
2 locks held by getty/5580:
#0: ffff888031b430a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
3 locks held by syz.5.155/7009:
#0: ffff8880345395f8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x254/0x320 fs/file.c:1192
#1: ffff888034470420 (sb_writers#15){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
#1: ffff888034470420 (sb_writers#15){.+.+}-{0:0}, at: vfs_writev+0x2d1/0xba0 fs/read_write.c:1048
#2: ffff888060b1b5c8 (&sb->s_type->i_mutex_key#23){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#2: ffff888060b1b5c8 (&sb->s_type->i_mutex_key#23){++++}-{4:4}, at: bch2_direct_write+0x243/0x31a0 fs/bcachefs/fs-io-direct.c:599
2 locks held by syz.5.155/7052:
#0: ffff888034470420 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:516
#1: ffff888060b1b5c8 (&sb->s_type->i_mutex_key#23){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff888060b1b5c8 (&sb->s_type->i_mutex_key#23){++++}-{4:4}, at: process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
4 locks held by bch-reclaim/loo/7045:
#0: ffff88806c04b0a8 (&j->reclaim_lock){+.+.}-{4:4}, at: bch2_journal_reclaim_thread+0x167/0x560 fs/bcachefs/journal_reclaim.c:739
#1: ffff88806c004398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline]
#1: ffff88806c004398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline]
#1: ffff88806c004398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 fs/bcachefs/btree_iter.c:3228
#2: ffff88806c004740 (&wb->flushing.lock){+.+.}-{4:4}, at: btree_write_buffer_flush_seq+0x1b19/0x1cc0 fs/bcachefs/btree_write_buffer.c:516
#3: ffff88806c0266d0 (&c->gc_lock){++++}-{4:4}, at: bch2_btree_update_start+0x682/0x14e0 fs/bcachefs/btree_update_interior.c:1197
2 locks held by syz-executor/9488:
#0: ffffffff8fca3288 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fca3288 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:326 [inline]
#0: ffffffff8fca3288 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xce2/0x2210 net/core/rtnetlink.c:4011
#1: ffff8880633bd4e8 (&wg->device_update_lock){+.+.}-{4:4}, at: wg_open+0x22d/0x420 drivers/net/wireguard/device.c:50
2 locks held by syz.4.442/9726:
6 locks held by syz.0.443/9729:
#0: ffff888053680278 (&c->state_lock){+.+.}-{4:4}, at: bch2_fs_start+0x45/0x5b0 fs/bcachefs/super.c:1007
#1: ffff888053684398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline]
#1: ffff888053684398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline]
#1: ffff888053684398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 fs/bcachefs/btree_iter.c:3228
#2: ffff888072050128 (bcachefs_btree){+.+.}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline]
#2: ffff888072050128 (bcachefs_btree){+.+.}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline]
#2: ffff888072050128 (bcachefs_btree){+.+.}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 fs/bcachefs/btree_iter.c:3228
#3: ffff8880536cb288 (journal res){.+.+}-{0:0}, at: bch2_journal_res_get fs/bcachefs/journal.h:387 [inline]
#3: ffff8880536cb288 (journal res){.+.+}-{0:0}, at: bch2_trans_journal_res_get fs/bcachefs/btree_trans_commit.c:350 [inline]
#3: ffff8880536cb288 (journal res){.+.+}-{0:0}, at: bch2_trans_commit_write_locked fs/bcachefs/btree_trans_commit.c:668 [inline]
#3: ffff8880536cb288 (journal res){.+.+}-{0:0}, at: do_bch2_trans_commit fs/bcachefs/btree_trans_commit.c:900 [inline]
#3: ffff8880536cb288 (journal res){.+.+}-{0:0}, at: __bch2_trans_commit+0x3c0e/0x93c0 fs/bcachefs/btree_trans_commit.c:1121
#4: ffff8880536849d0 (&c->mark_lock){++++}-{0:0}, at: bch2_accounting_mem_insert+0x18a/0x960 fs/bcachefs/disk_accounting.c:343
#5: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
#5: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
<TASK>
__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:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
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
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:_compound_head include/linux/page-flags.h:244 [inline]
RIP: 0010:virt_to_folio include/linux/mm.h:1297 [inline]
RIP: 0010:virt_to_slab mm/slab.h:211 [inline]
RIP: 0010:kasan_addr_to_slab+0x30/0x80 mm/kasan/common.c:38
Code: 89 fb e8 d3 35 4a ff 84 c0 74 3e 48 89 df e8 c7 33 4a ff 48 c1 e8 06 48 83 e0 c0 48 ba 00 00 00 00 00 ea ff ff 48 8b 4c 10 08 <f6> c1 01 75 42 48 01 d0 66 90 0f b6 50 33 c1 e2 18 31 c9 81 fa 00
RSP: 0018:ffffc90000157830 EFLAGS: 00000002
RAX: 0000000000a82940 RBX: ffff88802a0a5900 RCX: ffffea0000a82901
RDX: ffffea0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff814d3f4c R09: 1ffffffff20310d6
R10: dffffc0000000000 R11: fffffbfff20310d7 R12: 0000000000000000
R13: ffff88802a0a5900 R14: 0000000000000000 R15: ffff8880b863e328
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c9f130d540 CR3: 0000000067184000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<TASK>
__kasan_record_aux_stack+0x11/0xc0 mm/kasan/generic.c:529
insert_work+0x3e/0x330 kernel/workqueue.c:2183
__queue_work+0xc8b/0xf50 kernel/workqueue.c:2339
queue_work_on+0x1c2/0x380 kernel/workqueue.c:2390
queue_work include/linux/workqueue.h:662 [inline]
btree_node_write_endio+0x7ab/0x990 fs/bcachefs/btree_io.c:1927
blk_update_request+0x5e5/0x1160 block/blk-mq.c:981
blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1143
blk_complete_reqs block/blk-mq.c:1218 [inline]
blk_done_softirq+0x100/0x150 block/blk-mq.c:1223
handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
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
</TASK>