INFO: task syz-executor.4:1101 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:27664 pid: 1101 ppid: 6573 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
rwsem_down_write_slowpath+0xd47/0x1440 kernel/locking/rwsem.c:1117
__down_write_common kernel/locking/rwsem.c:1272 [inline]
__down_write kernel/locking/rwsem.c:1281 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1528
inode_lock include/linux/fs.h:783 [inline]
open_last_lookups fs/namei.c:3347 [inline]
path_openat+0x853/0x3660 fs/namei.c:3556
do_filp_open+0x277/0x4f0 fs/namei.c:3586
do_sys_openat2+0x13b/0x500 fs/open.c:1212
do_sys_open fs/open.c:1228 [inline]
__do_sys_creat fs/open.c:1304 [inline]
__se_sys_creat fs/open.c:1298 [inline]
__x64_sys_creat+0x11f/0x160 fs/open.c:1298
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd4a0118ae9
RSP: 002b:00007fd49d62b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fd4a022c1a0 RCX: 00007fd4a0118ae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000140
RBP: 00007fd4a0172f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd28ea073f R14: 00007fd49d62b300 R15: 0000000000022000
INFO: task syz-executor.4:1104 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:27664 pid: 1104 ppid: 6573 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
rwsem_down_write_slowpath+0xd47/0x1440 kernel/locking/rwsem.c:1117
__down_write_common kernel/locking/rwsem.c:1272 [inline]
__down_write kernel/locking/rwsem.c:1281 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1528
inode_lock include/linux/fs.h:783 [inline]
open_last_lookups fs/namei.c:3347 [inline]
path_openat+0x853/0x3660 fs/namei.c:3556
do_filp_open+0x277/0x4f0 fs/namei.c:3586
do_sys_openat2+0x13b/0x500 fs/open.c:1212
do_sys_open fs/open.c:1228 [inline]
__do_sys_creat fs/open.c:1304 [inline]
__se_sys_creat fs/open.c:1298 [inline]
__x64_sys_creat+0x11f/0x160 fs/open.c:1298
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd4a0118ae9
RSP: 002b:00007fd49d5e9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fd4a022c320 RCX: 00007fd4a0118ae9
RDX: 0000000000000000 RSI: 0000000000000122 RDI: 0000000020000180
RBP: 00007fd4a0172f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd28ea073f R14: 00007fd49d5e9300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/26:
#0: ffffffff8cd1db00 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by in:imklog/6192:
#0: ffff88807c20f4f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:990
1 lock held by syz-executor.4/1062:
2 locks held by syz-executor.4/1101:
#0: ffff888073e42460 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:376
#1: ffff888017b0e6c0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#1: ffff888017b0e6c0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3347 [inline]
#1: ffff888017b0e6c0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x853/0x3660 fs/namei.c:3556
2 locks held by syz-executor.4/1104:
#0: ffff888073e42460 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:376
#1: ffff888017b0e6c0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#1: ffff888017b0e6c0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3347 [inline]
#1: ffff888017b0e6c0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x853/0x3660 fs/namei.c:3556
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: khungtaskd Not tainted 5.16.0-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+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc82/0xcd0 kernel/hung_task.c:295
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2963 Comm: systemd-journal Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rcu_lock_acquire+0x0/0x30 include/linux/rcupdate.h:267
Code: 89 d6 49 89 f7 48 89 fb e8 ed 82 f2 ff 48 89 df 4c 89 fe 4c 89 f2 5b 41 5e 41 5f e9 5a b3 fc ff 66 2e 0f 1f 84 00 00 00 00 00 cb 82 f2 ff e8 c6 82 f2 ff 48 c7 c7 00 db d1 8c 31 f6 31 d2 b9
RSP: 0018:ffffc9000b5b78c0 EFLAGS: 00000283
RAX: 0000000000000001 RBX: 00007ff43b899687 RCX: ffff88807b695700
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff8cd1db00
RBP: 0000000000000001 R08: ffffffff81008ec9 R09: ffffc9000b5b7a50
R10: fffff520016b6f38 R11: 0000000000000000 R12: ffff88807b695700
R13: ffffffff8171bd80 R14: 00007ff43b899687 R15: 1ffff920016b6f35
FS: 00007ff43c5de8c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff439bfb000 CR3: 000000007ac96000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock include/linux/rcupdate.h:688 [inline]
is_bpf_text_address+0x27/0x270 kernel/bpf/core.c:715
kernel_text_address+0x9e/0xd0 kernel/extable.c:124
__kernel_text_address+0x9/0x40 kernel/extable.c:78
unwind_get_return_address+0x48/0x80 arch/x86/kernel/unwind_orc.c:318
arch_stack_walk+0xf8/0x140 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x11b/0x1e0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4c/0x80 mm/kasan/common.c:46
kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:370
____kasan_slab_free+0x10d/0x150 mm/kasan/common.c:366
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:1723 [inline]
slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1749
slab_free mm/slub.c:3513 [inline]
kmem_cache_free+0x95/0x190 mm/slub.c:3529
putname fs/namei.c:270 [inline]
do_mkdirat+0x49d/0x530 fs/namei.c:3918
__do_sys_mkdir fs/namei.c:3929 [inline]
__se_sys_mkdir fs/namei.c:3927 [inline]
__x64_sys_mkdir+0x6a/0x80 fs/namei.c:3927
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7ff43b899687
Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007fff6d1870c8 EFLAGS: 00000293 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007fff6d18a130 RCX: 00007ff43b899687
RDX: 0000000000000000 RSI: 00000000000001ed RDI: 00005573e6b2a8a0
RBP: 00007fff6d187100 R08: 00005573e5ec23e5 R09: 0000000000000018
R10: 0000000000000069 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00005573e6b2a8a0 R15: 00007fff6d187740
----------------
Code disassembly (best guess):
0: 89 d6 mov %edx,%esi
2: 49 89 f7 mov %rsi,%r15
5: 48 89 fb mov %rdi,%rbx
8: e8 ed 82 f2 ff callq 0xfff282fa
d: 48 89 df mov %rbx,%rdi
10: 4c 89 fe mov %r15,%rsi
13: 4c 89 f2 mov %r14,%rdx
16: 5b pop %rbx
17: 41 5e pop %r14
19: 41 5f pop %r15
1b: e9 5a b3 fc ff jmpq 0xfffcb37a
20: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
27: 00 00 00
* 2a: e8 cb 82 f2 ff callq 0xfff282fa <-- trapping instruction
2f: e8 c6 82 f2 ff callq 0xfff282fa
34: 48 c7 c7 00 db d1 8c mov $0xffffffff8cd1db00,%rdi
3b: 31 f6 xor %esi,%esi
3d: 31 d2 xor %edx,%edx
3f: b9 .byte 0xb9