INFO: task syz-executor.2:3637 blocked for more than 143 seconds.
Not tainted 5.17.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:24008 pid: 3637 ppid: 1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6295
schedule+0xd2/0x260 kernel/sched/core.c:6368
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6427
__mutex_lock_common kernel/locking/mutex.c:673 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
fuse_lock_inode+0xce/0x100 fs/fuse/inode.c:463
fuse_lookup.part.0+0x86/0x390 fs/fuse/dir.c:426
fuse_lookup+0x70/0x90 fs/fuse/dir.c:423
__lookup_slow+0x24c/0x480 fs/namei.c:1707
lookup_slow fs/namei.c:1724 [inline]
walk_component+0x40f/0x6a0 fs/namei.c:2020
link_path_walk.part.0+0x7ef/0xf70 fs/namei.c:2347
link_path_walk fs/namei.c:2272 [inline]
path_openat+0x266/0x2940 fs/namei.c:3605
do_filp_open+0x1aa/0x400 fs/namei.c:3636
do_sys_openat2+0x16d/0x4d0 fs/open.c:1214
do_sys_open fs/open.c:1230 [inline]
__do_sys_openat fs/open.c:1246 [inline]
__se_sys_openat fs/open.c:1241 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1241
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f5fa4e9fb98
RSP: 002b:00007ffe3d7e52c0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000000063f RCX: 00007f5fa4e9fb98
RDX: 0000000000090800 RSI: 00007f5fa4ef928e RDI: 00000000ffffff9c
RBP: 00007ffe3d7e538c R08: 0000000000090800 R09: 00007f5fa4ef928e
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 0000000000072cd8 R14: 000000000000000d R15: 00007ffe3d7e53f0
INFO: task syz-executor.2:13742 blocked for more than 143 seconds.
Not tainted 5.17.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28488 pid:13742 ppid: 3637 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6295
schedule+0xd2/0x260 kernel/sched/core.c:6368
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6427
__mutex_lock_common kernel/locking/mutex.c:673 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
fuse_lock_inode+0xce/0x100 fs/fuse/inode.c:463
fuse_readdir_uncached+0x335/0x1840 fs/fuse/readdir.c:350
fuse_readdir+0x871/0x1840 fs/fuse/readdir.c:583
iterate_dir+0x576/0x700 fs/readdir.c:65
__do_sys_getdents fs/readdir.c:286 [inline]
__se_sys_getdents fs/readdir.c:271 [inline]
__x64_sys_getdents+0x13a/0x2b0 fs/readdir.c:271
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f5fa4ea0059
RSP: 002b:00007f5fa37f4168 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007f5fa4fb3030 RCX: 00007f5fa4ea0059
RDX: 000000000000008b RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f5fa4efa08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe3d7e50cf R14: 00007f5fa37f4300 R15: 0000000000022000
INFO: task syz-executor.2:13743 blocked for more than 143 seconds.
Not tainted 5.17.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:27192 pid:13743 ppid: 3637 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6295
schedule+0xd2/0x260 kernel/sched/core.c:6368
request_wait_answer+0x49e/0x840 fs/fuse/dev.c:411
__fuse_request_send fs/fuse/dev.c:430 [inline]
fuse_simple_request+0x58a/0xcd0 fs/fuse/dev.c:515
fuse_lookup_name+0x280/0x630 fs/fuse/dir.c:386
fuse_lookup.part.0+0xdf/0x390 fs/fuse/dir.c:427
fuse_lookup+0x70/0x90 fs/fuse/dir.c:423
__lookup_slow+0x24c/0x480 fs/namei.c:1707
lookup_slow fs/namei.c:1724 [inline]
walk_component+0x40f/0x6a0 fs/namei.c:2020
link_path_walk.part.0+0x7ef/0xf70 fs/namei.c:2347
link_path_walk fs/namei.c:2272 [inline]
path_openat+0x266/0x2940 fs/namei.c:3605
do_filp_open+0x1aa/0x400 fs/namei.c:3636
do_sys_openat2+0x16d/0x4d0 fs/open.c:1214
do_sys_open fs/open.c:1230 [inline]
__do_sys_openat fs/open.c:1246 [inline]
__se_sys_openat fs/open.c:1241 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1241
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f5fa4ea0059
RSP: 002b:00007f5fa37d3168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f5fa4fb3100 RCX: 00007f5fa4ea0059
RDX: 0000000000000042 RSI: 0000000020000300 RDI: ffffffffffffff9c
RBP: 00007f5fa4efa08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe3d7e50cf R14: 00007f5fa37d3300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb83aa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
2 locks held by getty/3280:
#0: ffff88802364d098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b632e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077
2 locks held by syz-executor.2/3637:
#0: ffff88803538dfd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:787 [inline]
#0: ffff88803538dfd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow fs/namei.c:1723 [inline]
#0: ffff88803538dfd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: walk_component+0x400/0x6a0 fs/namei.c:2020
#1: ffff88803538e438 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xce/0x100 fs/fuse/inode.c:463
3 locks held by kworker/u4:5/3689:
#0: ffff8880b9c39c58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:489
#1: ffff8880b9c27948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3e7/0x4e0 kernel/sched/psi.c:891
#2: ffff8880b9c28498 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:946
4 locks held by syz-executor.2/13742:
#0: ffff888076c08d70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:1034
#1: ffff88803538dfd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: iterate_dir+0xcd/0x700 fs/readdir.c:55
#2: ffff888078f7c0a8 (&ff->readdir.lock){+.+.}-{3:3}, at: fuse_readdir+0xf1/0x1840 fs/fuse/readdir.c:577
#3: ffff88803538e438 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xce/0x100 fs/fuse/inode.c:463
2 locks held by syz-executor.2/13743:
#0: ffff88803538dfd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:787 [inline]
#0: ffff88803538dfd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow fs/namei.c:1723 [inline]
#0: ffff88803538dfd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: walk_component+0x400/0x6a0 fs/namei.c:2020
#1: ffff88803538e438 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xce/0x100 fs/fuse/inode.c:463
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.17.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:369
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3689 Comm: kworker/u4:5 Not tainted 5.17.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:__lock_acquire+0x353/0x5470 kernel/locking/lockdep.c:4965
Code: 84 c9 0f 85 85 12 00 00 41 83 bd 44 0a 00 00 01 49 8d 7c 24 24 48 89 fa 83 d8 ff c1 e5 0f c1 e0 0d 41 c1 e7 10 0f b7 ed 09 e8 <41> 81 e7 00 00 03 00 41 c1 e1 13 41 09 c7 8b 44 24 08 48 c1 ea 03
RSP: 0018:ffffc900028efa60 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff888017832760 RCX: 0000000000000000
RDX: ffff8880178327d4 RSI: 0000000000000004 RDI: ffff8880178327d4
RBP: 0000000000000000 R08: 1ffff11002f064f5 R09: 0000000000000000
R10: fffffbfff1b29332 R11: 0000000000000000 R12: ffff8880178327b0
R13: ffff888017831d00 R14: ffffffff8bb83aa0 R15: 0000000000020000
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0280ab000 CR3: 000000000b88e000 CR4: 0000000000350ee0
Call Trace:
lock_acquire kernel/locking/lockdep.c:5639 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5604
rcu_lock_acquire include/linux/rcupdate.h:268 [inline]
rcu_read_lock include/linux/rcupdate.h:694 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x12d/0xfa0 net/batman-adv/network-coding.c:719
process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
worker_thread+0x657/0x1110 kernel/workqueue.c:2454
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 84 c9 test %cl,%cl
2: 0f 85 85 12 00 00 jne 0x128d
8: 41 83 bd 44 0a 00 00 cmpl $0x1,0xa44(%r13)
f: 01
10: 49 8d 7c 24 24 lea 0x24(%r12),%rdi
15: 48 89 fa mov %rdi,%rdx
18: 83 d8 ff sbb $0xffffffff,%eax
1b: c1 e5 0f shl $0xf,%ebp
1e: c1 e0 0d shl $0xd,%eax
21: 41 c1 e7 10 shl $0x10,%r15d
25: 0f b7 ed movzwl %bp,%ebp
28: 09 e8 or %ebp,%eax
* 2a: 41 81 e7 00 00 03 00 and $0x30000,%r15d <-- trapping instruction
31: 41 c1 e1 13 shl $0x13,%r9d
35: 41 09 c7 or %eax,%r15d
38: 8b 44 24 08 mov 0x8(%rsp),%eax
3c: 48 c1 ea 03 shr $0x3,%rdx