INFO: task syz-executor.3:22966 blocked for more than 143 seconds.
Not tainted 5.15.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:26128 pid:22966 ppid: 10643 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6250
schedule+0x12b/0x1f0 kernel/sched/core.c:6323
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]
lock_mount+0x6a/0x2f0 fs/namespace.c:2242
do_new_mount_fc fs/namespace.c:2931 [inline]
do_new_mount fs/namespace.c:2990 [inline]
path_mount+0x22c7/0x2c30 fs/namespace.c:3318
do_mount fs/namespace.c:3331 [inline]
__do_sys_mount fs/namespace.c:3539 [inline]
__se_sys_mount+0x308/0x3c0 fs/namespace.c:3516
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: 0033:0x7f7ce8fc4ae9
RSP: 002b:00007f7ce64f8188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7ce90d80e0 RCX: 00007f7ce8fc4ae9
RDX: 0000000020000140 RSI: 0000000020000000 RDI: 0000000000000000
RBP: 00007f7ce901ef45 R08: 0000000020000580 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdeee1264f R14: 00007f7ce64f8300 R15: 0000000000022000
INFO: task syz-executor.3:22968 blocked for more than 143 seconds.
Not tainted 5.15.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28208 pid:22968 ppid: 10643 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6250
schedule+0x12b/0x1f0 kernel/sched/core.c:6323
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]
vfs_setxattr+0x1e8/0x440 fs/xattr.c:300
setxattr+0x1aa/0x300 fs/xattr.c:575
path_setxattr+0x1a8/0x270 fs/xattr.c:595
__do_sys_setxattr fs/xattr.c:611 [inline]
__se_sys_setxattr fs/xattr.c:607 [inline]
__x64_sys_setxattr+0xb7/0xd0 fs/xattr.c:607
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: 0033:0x7f7ce8fc4ae9
RSP: 002b:00007f7ce64d7188 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f7ce90d81a0 RCX: 00007f7ce8fc4ae9
RDX: 0000000020000300 RSI: 0000000020000180 RDI: 0000000020000040
RBP: 00007f7ce901ef45 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000007fec R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdeee1264f R14: 00007f7ce64d7300 R15: 0000000000022000
Showing all locks held in the system:
3 locks held by kworker/u4:1/10:
1 lock held by khungtaskd/27:
#0: ffffffff8cb1d900 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by in:imklog/6150:
2 locks held by kworker/1:2/16425:
#0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7ca/0x1140
#1: ffffc90003eafd20 ((work_completion)(&m->wq)){+.+.}-{0:0}, at: process_one_work+0x808/0x1140 kernel/workqueue.c:2273
2 locks held by syz-executor.3/22920:
#0: ffff88801b3ca460 (sb_writers#23){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:376
#1: ffff88808cf8ceb8 (&sb->s_type->i_mutex_key#28){++++}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#1: ffff88808cf8ceb8 (&sb->s_type->i_mutex_key#28){++++}-{3:3}, at: vfs_setxattr+0x1e8/0x440 fs/xattr.c:300
1 lock held by syz-executor.3/22966:
#0: ffff88808cf8ceb8 (&sb->s_type->i_mutex_key#28){++++}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#0: ffff88808cf8ceb8 (&sb->s_type->i_mutex_key#28){++++}-{3:3}, at: lock_mount+0x6a/0x2f0 fs/namespace.c:2242
2 locks held by syz-executor.3/22968:
#0: ffff88801b3ca460 (sb_writers#23){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:376
#1: ffff88808cf8ceb8 (&sb->s_type->i_mutex_key#28){++++}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#1: ffff88808cf8ceb8 (&sb->s_type->i_mutex_key#28){++++}-{3:3}, at: vfs_setxattr+0x1e8/0x440 fs/xattr.c:300
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.0-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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2927 Comm: systemd-journal Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:59 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:173 [inline]
RIP: 0010:unwind_next_frame+0x269/0x1fa0 arch/x86/kernel/unwind_orc.c:443
Code: 39 c1 0f 87 b3 16 00 00 45 29 f8 0f 84 96 01 00 00 4e 8d 34 bd a4 6a 07 8e 4f 8d 6c 86 fc 4c 89 f5 4d 39 f5 0f 83 5b 02 00 00 <4c> 29 f5 48 c1 fd 02 48 8d 44 6d 00 48 8d 2c 42 e9 8d 00 00 00 48
RSP: 0018:ffffc90001b2f820 EFLAGS: 00000202
RAX: ffffffff8e12f370 RBX: ffffffff8e12f374 RCX: ffffffff8e12f378
RDX: ffffffff8e7f9dec RSI: ffffffff81da1d42 RDI: ffffffff813a83d9
RBP: ffffffff8e12f374 R08: 0000000000000001 R09: ffffc90001b2f9d0
R10: fffff52000365f28 R11: 0000000000000000 R12: ffffffff81da1d41
R13: ffffffff8e12f374 R14: ffffffff8e12f374 R15: ffffffff8e12f378
FS: 00007fc147fd98c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc144e3e010 CR3: 000000007ecb1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x112/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x11b/0x1e0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0xb6/0xf0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:259 [inline]
slab_post_alloc_hook mm/slab.h:519 [inline]
slab_alloc_node mm/slub.c:3234 [inline]
slab_alloc mm/slub.c:3242 [inline]
kmem_cache_alloc+0x1c9/0x310 mm/slub.c:3247
getname_flags+0xba/0x650 fs/namei.c:138
do_sys_openat2+0xd2/0x500 fs/open.c:1206
do_sys_open fs/open.c:1228 [inline]
__do_sys_open fs/open.c:1236 [inline]
__se_sys_open fs/open.c:1232 [inline]
__x64_sys_open+0x221/0x270 fs/open.c:1232
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: 0033:0x7fc147568840
Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24
RSP: 002b:00007ffe9f4a66f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007ffe9f4a6a00 RCX: 00007fc147568840
RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 0000557f734e4520
RBP: 000000000000000d R08: 000000000000ffc0 R09: 00000000ffffffff
R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000557f734d7040 R14: 00007ffe9f4a69c0 R15: 0000557f734e4f50
----------------
Code disassembly (best guess):
0: 39 c1 cmp %eax,%ecx
2: 0f 87 b3 16 00 00 ja 0x16bb
8: 45 29 f8 sub %r15d,%r8d
b: 0f 84 96 01 00 00 je 0x1a7
11: 4e 8d 34 bd a4 6a 07 lea -0x71f8955c(,%r15,4),%r14
18: 8e
19: 4f 8d 6c 86 fc lea -0x4(%r14,%r8,4),%r13
1e: 4c 89 f5 mov %r14,%rbp
21: 4d 39 f5 cmp %r14,%r13
24: 0f 83 5b 02 00 00 jae 0x285
* 2a: 4c 29 f5 sub %r14,%rbp <-- trapping instruction
2d: 48 c1 fd 02 sar $0x2,%rbp
31: 48 8d 44 6d 00 lea 0x0(%rbp,%rbp,2),%rax
36: 48 8d 2c 42 lea (%rdx,%rax,2),%rbp
3a: e9 8d 00 00 00 jmpq 0xcc
3f: 48 rex.W