INFO: task syz-executor.1:7360 blocked for more than 143 seconds.
Not tainted 6.9.0-rc6-syzkaller-00290-gb9158815de52 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29088 pid:7360 tgid:7354 ppid:5645 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
rwsem_down_read_slowpath+0x61e/0xb20 kernel/locking/rwsem.c:1086
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x124/0x330 kernel/locking/rwsem.c:1528
inode_lock_shared include/linux/fs.h:805 [inline]
lookup_slow fs/namei.c:1708 [inline]
walk_component+0x342/0x5b0 fs/namei.c:2004
lookup_last fs/namei.c:2461 [inline]
path_lookupat+0x17f/0x770 fs/namei.c:2485
filename_lookup+0x1e5/0x5b0 fs/namei.c:2514
user_path_at_empty+0x42/0x60 fs/namei.c:2921
user_path_at include/linux/namei.h:57 [inline]
do_mount fs/namespace.c:3689 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount fs/namespace.c:3875 [inline]
__x64_sys_mount+0x1ff/0x320 fs/namespace.c:3875
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9d6187dca9
RSP: 002b:00007f9d625ee0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f9d619ac050 RCX: 00007f9d6187dca9
RDX: 0000000020002100 RSI: 00000000200020c0 RDI: 0000000000000000
RBP: 00007f9d618c947e R08: 0000000020002140 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f9d619ac050 R15: 00007ffe192d0ba8
INFO: task syz-executor.1:7368 blocked for more than 144 seconds.
Not tainted 6.9.0-rc6-syzkaller-00290-gb9158815de52 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29616 pid:7368 tgid:7354 ppid:5645 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
rwsem_down_read_slowpath+0x61e/0xb20 kernel/locking/rwsem.c:1086
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x124/0x330 kernel/locking/rwsem.c:1528
inode_lock_shared include/linux/fs.h:805 [inline]
lookup_slow fs/namei.c:1708 [inline]
walk_component+0x342/0x5b0 fs/namei.c:2004
lookup_last fs/namei.c:2461 [inline]
path_lookupat+0x17f/0x770 fs/namei.c:2485
filename_lookup+0x1e5/0x5b0 fs/namei.c:2514
user_path_at_empty+0x42/0x60 fs/namei.c:2921
user_path_at include/linux/namei.h:57 [inline]
ksys_umount fs/namespace.c:1916 [inline]
__do_sys_umount fs/namespace.c:1924 [inline]
__se_sys_umount fs/namespace.c:1922 [inline]
__x64_sys_umount+0x10e/0x1a0 fs/namespace.c:1922
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9d6187dca9
RSP: 002b:00007f9d625ac0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 00007f9d619ac1f0 RCX: 00007f9d6187dca9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200001c0
RBP: 00007f9d618c947e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f9d619ac1f0 R15: 00007ffe192d0ba8
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8d7b0e20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8d7b0e20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8d7b0e20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by jfsCommit/111:
#0: ffff888055ed8920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x2ff/0x2770 fs/jfs/jfs_imap.c:886
#1: ffff88805f3038b8 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x31c/0x2770 fs/jfs/jfs_imap.c:891
2 locks held by getty/4828:
#0: ffff88802a21c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002efe2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201
2 locks held by syz-executor.4/6060:
#0: ffff8880223c40e0 (&type->s_umount_key#91){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880223c40e0 (&type->s_umount_key#91){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880223c40e0 (&type->s_umount_key#91){+.+.}-{3:3}, at: deactivate_super+0xd6/0x100 fs/super.c:504
#1: ffffffff8dd65188 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xc8/0x710 fs/jfs/jfs_logmgr.c:1444
1 lock held by syz-executor.1/7355:
1 lock held by syz-executor.1/7360:
#0: ffff88805f14c188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:805 [inline]
#0: ffff88805f14c188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow fs/namei.c:1708 [inline]
#0: ffff88805f14c188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: walk_component+0x342/0x5b0 fs/namei.c:2004
1 lock held by syz-executor.1/7368:
#0: ffff88805f14c188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:805 [inline]
#0: ffff88805f14c188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow fs/namei.c:1708 [inline]
#0: ffff88805f14c188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: walk_component+0x342/0x5b0 fs/namei.c:2004
3 locks held by syz-executor.1/7504:
3 locks held by kworker/u8:12/7725:
2 locks held by syz-executor.4/8460:
#0: ffff88805f0e2c10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
#0: ffff88805f0e2c10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x270 net/socket.c:658
#1: ffffffff8d7bc538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#1: ffffffff8d7bc538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x682/0x7a0 kernel/rcu/tree_exp.h:939
2 locks held by syz-executor.0/8464:
#0: ffff88805f068e10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
#0: ffff88805f068e10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x270 net/socket.c:658
#1: ffffffff8d7bc538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#1: ffffffff8d7bc538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x403/0x7a0 kernel/rcu/tree_exp.h:939
1 lock held by syz-executor.3/8467:
#0: ffff88806700c420 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:124 [inline]
#0: ffff88806700c420 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x160/0x3c0 mm/util.c:571
3 locks held by syz-executor.3/8469:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc6-syzkaller-00290-gb9158815de52 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf86/0x1240 kernel/hung_task.c:380
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5145 Comm: syz-fuzzer Not tainted 6.9.0-rc6-syzkaller-00290-gb9158815de52 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__orc_find+0xb5/0x130 arch/x86/kernel/unwind_orc.c:102
Code: 48 01 d0 48 d1 f8 4c 8d 3c 83 4c 89 fa 48 c1 ea 03 42 0f b6 0c 32 4c 89 fa 83 e2 07 83 c2 03 38 ca 7c 04 84 c9 75 73 49 63 17 <4c> 89 e7 4d 8d 2c 17 4c 89 ee e8 8c b4 50 00 4d 39 ec 73 95 e8 32
RSP: 0018:ffffc90000006b30 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffffffff901056a4 RCX: 0000000000000000
RDX: fffffffff92df780 RSI: ffffffff813d0baa RDI: 0000000000000005
RBP: ffffffff901056b8 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000006 R11: 0000000000000003 R12: ffffffff893e4ec5
R13: ffffffff90be0466 R14: dffffc0000000000 R15: ffffffff901056ac
FS: 000000c00005b890(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f142bb7a978 CR3: 0000000079ef4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
unwind_next_frame+0x335/0x23a0 arch/x86/kernel/unwind_orc.c:494
arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579
poison_slab_object mm/kasan/common.c:240 [inline]
__kasan_slab_free+0x11d/0x1a0 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2106 [inline]
slab_free mm/slub.c:4280 [inline]
kmem_cache_free+0x12e/0x380 mm/slub.c:4344
skb_kfree_head net/core/skbuff.c:1094 [inline]
skb_kfree_head net/core/skbuff.c:1091 [inline]
skb_free_head+0x19a/0x1e0 net/core/skbuff.c:1108
skb_release_data+0x76c/0x990 net/core/skbuff.c:1136
skb_release_all net/core/skbuff.c:1202 [inline]
__kfree_skb+0x51/0x70 net/core/skbuff.c:1216
tcp_wmem_free_skb include/net/tcp.h:312 [inline]
tcp_rtx_queue_unlink_and_free include/net/tcp.h:2098 [inline]
tcp_clean_rtx_queue net/ipv4/tcp_input.c:3375 [inline]
tcp_ack+0x1eb7/0x5ba0 net/ipv4/tcp_input.c:3967
tcp_rcv_established+0xda1/0x21b0 net/ipv4/tcp_input.c:6079
tcp_v4_do_rcv+0x6a9/0xa50 net/ipv4/tcp_ipv4.c:1906
tcp_v4_rcv+0x3377/0x3b20 net/ipv4/tcp_ipv4.c:2332
ip_protocol_deliver_rcu+0xba/0x4e0 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x316/0x570 net/ipv4/ip_input.c:233
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ip_local_deliver+0x18e/0x1f0 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:460 [inline]
ip_sublist_rcv_finish+0x2c1/0x620 net/ipv4/ip_input.c:580
ip_list_rcv_finish.constprop.0+0x559/0x720 net/ipv4/ip_input.c:631
ip_sublist_rcv net/ipv4/ip_input.c:639 [inline]
ip_list_rcv+0x339/0x450 net/ipv4/ip_input.c:674
__netif_receive_skb_list_ptype net/core/dev.c:5587 [inline]
__netif_receive_skb_list_core+0x755/0x950 net/core/dev.c:5635
__netif_receive_skb_list net/core/dev.c:5687 [inline]
netif_receive_skb_list_internal+0x753/0xda0 net/core/dev.c:5779
gro_normal_list include/net/gro.h:447 [inline]
gro_normal_list include/net/gro.h:443 [inline]
napi_complete_done+0x23f/0x9a0 net/core/dev.c:6119
virtqueue_napi_complete drivers/net/virtio_net.c:515 [inline]
virtnet_poll+0x1014/0x18c0 drivers/net/virtio_net.c:2227
__napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6638
napi_poll net/core/dev.c:6707 [inline]
net_rx_action+0x9ad/0xf10 net/core/dev.c:6822
__do_softirq+0x218/0x922 kernel/softirq.c:554
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:633 [inline]
irq_exit_rcu+0xb9/0x120 kernel/softirq.c:645
common_interrupt+0xb0/0xd0 arch/x86/kernel/irq.c:247
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
RIP: 0010:tomoyo_socket_sendmsg_permission+0x1e/0x3c0 security/tomoyo/network.c:760
Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 41 56 49 89 fe 41 55 49 bd 00 00 00 00 00 fc ff df 41 54 55 48 89 f5 53 <48> 81 ec b0 00 00 00 48 c7 44 24 10 b3 8a b5 41 48 8d 5c 24 10 48
RSP: 0018:ffffc900046b7b88 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffffff8d265d00 RCX: ffffffff88ae6c56
RDX: 00000000000000f0 RSI: ffffc900046b7c38 RDI: ffff88807961a400
RBP: ffffc900046b7c38 R08: 0000000000000003 R09: 0000000000000005
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88807961a400 R15: 00000000000000f0
security_socket_sendmsg+0x75/0xc0 security/security.c:4495
__sock_sendmsg net/socket.c:742 [inline]
sock_write_iter+0x2a1/0x5c0 net/socket.c:1160
call_write_iter include/linux/fs.h:2110 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0x6db/0x1100 fs/read_write.c:590
ksys_write+0x1f8/0x260 fs/read_write.c:643
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x40720e
Code: 48 83 ec 38 e8 13 00 00 00 48 83 c4 38 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 49 89 f2 48 89 fa 48 89 ce 48 89 df 0f 05 <48> 3d 01 f0 ff ff 76 15 48 f7 d8 48 89 c1 48 c7 c0 ff ff ff ff 48
RSP: 002b:000000c0009e2d80 EFLAGS: 00000216 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000040720e
RDX: 00000000000000f0 RSI: 000000c00048e7a0 RDI: 0000000000000003
RBP: 000000c0009e2dc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000216 R12: 000000c0009e2f00
R13: 0000000000000001 R14: 000000c0000061a0 R15: 000000000000000f