INFO: task syz-executor.0:9004 blocked for more than 144 seconds.
Not tainted 6.0.0-rc6-next-20220923-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:28408 pid:9004 ppid:3639 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5194 [inline]
__schedule+0xbd2/0x55b0 kernel/sched/core.c:6506
schedule+0xda/0x1b0 kernel/sched/core.c:6582
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
__flush_work+0x58d/0xae0 kernel/workqueue.c:3073
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3160
p9_conn_destroy net/9p/trans_fd.c:886 [inline]
p9_fd_close+0x29c/0x580 net/9p/trans_fd.c:921
p9_client_destroy+0xbe/0x370 net/9p/client.c:1040
p9_client_create+0x728/0xf20 net/9p/client.c:1027
v9fs_session_init+0x1e2/0x1810 fs/9p/v9fs.c:408
v9fs_mount+0xba/0xc90 fs/9p/vfs_super.c:126
legacy_get_tree+0x105/0x220 fs/fs_context.c:610
vfs_get_tree+0x89/0x2f0 fs/super.c:1530
do_new_mount fs/namespace.c:3040 [inline]
path_mount+0x1326/0x1e20 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
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+0x63/0xcd
RIP: 0033:0x7f366da8b5a9
RSP: 002b:00007f366d1ff168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f366dbac050 RCX: 00007f366da8b5a9
RDX: 00000000200001c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f366dae6580 R08: 0000000020000200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdf2dc539f R14: 00007f366d1ff300 R15: 0000000000022000
INFO: task syz-executor.1:9008 blocked for more than 145 seconds.
Not tainted 6.0.0-rc6-next-20220923-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28328 pid:9008 ppid:3642 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5194 [inline]
__schedule+0xbd2/0x55b0 kernel/sched/core.c:6506
schedule+0xda/0x1b0 kernel/sched/core.c:6582
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
__flush_work+0x58d/0xae0 kernel/workqueue.c:3073
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3160
p9_conn_destroy net/9p/trans_fd.c:886 [inline]
p9_fd_close+0x29c/0x580 net/9p/trans_fd.c:921
p9_client_destroy+0xbe/0x370 net/9p/client.c:1040
p9_client_create+0x728/0xf20 net/9p/client.c:1027
v9fs_session_init+0x1e2/0x1810 fs/9p/v9fs.c:408
v9fs_mount+0xba/0xc90 fs/9p/vfs_super.c:126
legacy_get_tree+0x105/0x220 fs/fs_context.c:610
vfs_get_tree+0x89/0x2f0 fs/super.c:1530
do_new_mount fs/namespace.c:3040 [inline]
path_mount+0x1326/0x1e20 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
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+0x63/0xcd
RIP: 0033:0x7fd247c8b5a9
RSP: 002b:00007fd248e8d168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd247dac050 RCX: 00007fd247c8b5a9
RDX: 00000000200001c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fd247ce6580 R08: 0000000020000200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcead2296f R14: 00007fd248e8d300 R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.0.0-rc6-next-20220923-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x32f/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc6b/0xfc0 kernel/hung_task.c:369
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10269 Comm: dhcpcd Not tainted 6.0.0-rc6-next-20220923-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:lsm_file_alloc security/security.c:568 [inline]
RIP: 0010:security_file_alloc+0x19/0x170 security/security.c:1527
Code: 1d 8b 07 fe eb b2 66 66 2e 0f 1f 84 00 00 00 00 00 41 55 49 89 fd 41 54 55 53 48 83 ec 08 e8 de 42 bb fd 48 8b 2d 97 8a 74 0d <48> 85 ed 0f 84 c5 00 00 00 e8 c9 42 bb fd 48 89 ef be c0 0d 00 00
RSP: 0018:ffffc900059a7cb8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000802 RCX: 0000000000000000
RDX: ffff888011be57c0 RSI: ffffffff83c15122 RDI: ffff88804dcafb80
RBP: ffff888140007140 R08: 0000000000000001 R09: ffff8880205e6c03
R10: ffffed10040bcd80 R11: 000000000008c07e R12: ffff88804dcafb80
R13: ffff88804dcafb80 R14: 0000000000000000 R15: ffff888140b40000
FS: 00007f57630d5740(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f57631cd310 CR3: 000000004ec76000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__alloc_file+0xd9/0x270 fs/file_table.c:143
alloc_empty_file+0x6d/0x170 fs/file_table.c:187
alloc_file+0x59/0x800 fs/file_table.c:229
alloc_file_pseudo+0x165/0x250 fs/file_table.c:272
sock_alloc_file+0x4f/0x190 net/socket.c:463
sock_map_fd net/socket.c:487 [inline]
__sys_socket+0x1a4/0x240 net/socket.c:1644
__do_sys_socket net/socket.c:1649 [inline]
__se_sys_socket net/socket.c:1647 [inline]
__x64_sys_socket+0x6f/0xb0 net/socket.c:1647
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+0x63/0xcd
RIP: 0033:0x7f57631cd317
Code: 73 01 c3 48 8b 0d 61 fb 0b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 31 fb 0b 00 f7 d8 64 89 01 48
RSP: 002b:00007ffc31fb00a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 0000564316566b60 RCX: 00007f57631cd317
RDX: 0000000000000300 RSI: 0000000000080803 RDI: 0000000000000011
RBP: 0000000000000000 R08: 0000564318140310 R09: 00007f576328da60
R10: 0000000000200000 R11: 0000000000000202 R12: 000056431813d610
R13: 0000564318142788 R14: 00007ffc31fd098c R15: 00007ffc31fd09b4