INFO: task syz-executor:4253 blocked for more than 143 seconds.
Not tainted 6.1.127-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:20112 pid:4253 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
io_schedule+0x88/0x100 kernel/sched/core.c:8786
folio_wait_bit_common+0x878/0x1290 mm/filemap.c:1324
truncate_inode_pages_range+0xbb5/0x1340 mm/truncate.c:422
evict+0x53c/0x930 fs/inode.c:707
dispose_list fs/inode.c:738 [inline]
evict_inodes+0x668/0x700 fs/inode.c:792
generic_shutdown_super+0x94/0x340 fs/super.c:480
kill_block_super+0x7a/0xe0 fs/super.c:1470
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6afbb8e0d7
RSP: 002b:00007ffdb41e90f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f6afbc0e08c RCX: 00007f6afbb8e0d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdb41e91b0
RBP: 00007ffdb41e91b0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffdb41ea240
R13: 00007f6afbc0e08c R14: 00000000000859df R15: 00007ffdb41ea280
INFO: task syz-executor:4255 blocked for more than 144 seconds.
Not tainted 6.1.127-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:20336 pid:4255 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
io_schedule+0x88/0x100 kernel/sched/core.c:8786
folio_wait_bit_common+0x878/0x1290 mm/filemap.c:1324
truncate_inode_pages_range+0xbb5/0x1340 mm/truncate.c:422
evict+0x53c/0x930 fs/inode.c:707
dispose_list fs/inode.c:738 [inline]
evict_inodes+0x668/0x700 fs/inode.c:792
generic_shutdown_super+0x94/0x340 fs/super.c:480
kill_block_super+0x7a/0xe0 fs/super.c:1470
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f14bb98e0d7
RSP: 002b:00007ffc64a15768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f14bba0e08c RCX: 00007f14bb98e0d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc64a15820
RBP: 00007ffc64a15820 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc64a168b0
R13: 00007f14bba0e08c R14: 0000000000084d72 R15: 00007ffc64a168f0
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d32b290 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d32ba90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517
1 lock held by khungtaskd/28:
#0: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#0: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#0: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6510
2 locks held by getty/4000:
#0: ffff88814d928098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc9000325e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2198
1 lock held by syz-executor/4253:
#0: ffff888028d280e0 (&type->s_umount_key#78){+.+.}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
1 lock held by syz-executor/4255:
#0: ffff88807bd0c0e0 (&type->s_umount_key#78){+.+.}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
1 lock held by syz-executor/4256:
#0: ffffffff8d3306b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#0: ffffffff8d3306b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4f0/0x930 kernel/rcu/tree_exp.h:962
2 locks held by kworker/1:13/5414:
#0: ffff888017c72138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc90003b07d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
5 locks held by syz-executor/17748:
#0: ffff8880788220e0 (&type->s_umount_key#99){+.+.}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
#1: ffff8880401b51e8 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2178 [inline]
#1: ffff8880401b51e8 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_issue_checkpoint+0x2d2/0x4d0 fs/f2fs/checkpoint.c:1864
#2: ffff8880401b4318 (&sbi->cp_global_sem){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2178 [inline]
#2: ffff8880401b4318 (&sbi->cp_global_sem){+.+.}-{3:3}, at: f2fs_write_checkpoint+0x52f/0x1e00 fs/f2fs/checkpoint.c:1645
#3: ffff8880401b43b0 (&sbi->cp_rwsem){++++}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2178 [inline]
#3: ffff8880401b43b0 (&sbi->cp_rwsem){++++}-{3:3}, at: f2fs_lock_all fs/f2fs/f2fs.h:2230 [inline]
#3: ffff8880401b43b0 (&sbi->cp_rwsem){++++}-{3:3}, at: block_operations fs/f2fs/checkpoint.c:1229 [inline]
#3: ffff8880401b43b0 (&sbi->cp_rwsem){++++}-{3:3}, at: f2fs_write_checkpoint+0x870/0x1e00 fs/f2fs/checkpoint.c:1658
#4: ffff8880401b4448 (&sbi->node_write){++++}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2178 [inline]
#4: ffff8880401b4448 (&sbi->node_write){++++}-{3:3}, at: block_operations fs/f2fs/checkpoint.c:1277 [inline]
#4: ffff8880401b4448 (&sbi->node_write){++++}-{3:3}, at: f2fs_write_checkpoint+0xdf9/0x1e00 fs/f2fs/checkpoint.c:1658
1 lock held by syz.5.7575/22068:
#0: ffff88807e2100e0 (&type->s_umount_key#56/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.127-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ae/0x3f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xf88/0xfd0 kernel/hung_task.c:377
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.1.127-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:vlan_get_protocol_and_depth include/linux/if_vlan.h:663 [inline]
RIP: 0010:skb_network_protocol+0x59f/0x7a0 net/core/dev.c:3384
Code: 02 00 00 48 8b 7c 24 08 44 89 e6 e8 db 46 fa ff 48 85 c0 0f 84 a7 00 00 00 e8 4d b6 e3 f8 48 83 7c 24 10 00 0f 85 73 ff ff ff 3c b6 e3 f8 48 ba 00 00 00 00 00 fc ff df 48 8b 04 24 48 c7 44
RSP: 0018:ffffc900001460e0 EFLAGS: 00000246
RAX: ffffffff88a6e5c6 RBX: 000000000000dd86 RCX: ffff888017f5bb80
RDX: 0000000000000100 RSI: 0000000000000046 RDI: 000000000000000e
RBP: ffffc900001461c0 R08: ffffffff88a6e5bc R09: ffffffff88a6e26c
R10: 0000000000000002 R11: ffff888017f5bb80 R12: 00000000ffffffc8
R13: 0000000000000046 R14: 000000000000000e R15: 0000000000000046
FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3e8157 CR3: 0000000031714000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
harmonize_features net/core/dev.c:3517 [inline]
netif_skb_features+0x72b/0xbb0 net/core/dev.c:3612
validate_xmit_skb+0x84/0xf50 net/core/dev.c:3702
__dev_queue_xmit+0x177d/0x3d50 net/core/dev.c:4295
dev_queue_xmit include/linux/netdevice.h:3043 [inline]
br_dev_queue_push_xmit+0x6fe/0x8c0 net/bridge/br_forward.c:53
NF_HOOK+0x6e8/0x7a0 include/linux/netfilter.h:302
br_nf_post_routing+0x9b6/0xde0 net/bridge/br_netfilter_hooks.c:978
nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline]
nf_hook_slow+0xae/0x1e0 net/netfilter/core.c:614
NF_HOOK+0x2a3/0x450 include/linux/netfilter.h:300
br_forward_finish+0xe1/0x130 net/bridge/br_forward.c:66
br_nf_forward_finish+0xa4e/0xff0 net/bridge/br_netfilter_hooks.c:685
NF_HOOK+0x6e8/0x7a0 include/linux/netfilter.h:302
br_nf_forward_ip+0xbdd/0x1090 net/bridge/br_netfilter_hooks.c:755
nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline]
nf_hook_slow+0xae/0x1e0 net/netfilter/core.c:614
NF_HOOK+0x2a3/0x450 include/linux/netfilter.h:300
__br_forward+0x430/0x5f0 net/bridge/br_forward.c:115
deliver_clone net/bridge/br_forward.c:131 [inline]
maybe_deliver+0xb3/0x150 net/bridge/br_forward.c:189
br_flood+0x2e7/0x440 net/bridge/br_forward.c:231
br_handle_frame_finish+0x15d0/0x1bf0 net/bridge/br_input.c:198
br_nf_hook_thresh+0x46a/0x580 net/bridge/br_netfilter_hooks.c:1185
br_nf_pre_routing_finish_ipv6+0xa92/0xdc0
NF_HOOK include/linux/netfilter.h:302 [inline]
br_nf_pre_routing_ipv6+0x354/0x740 net/bridge/br_netfilter_ipv6.c:243
nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:260 [inline]
br_handle_frame+0x991/0x1340 net/bridge/br_input.c:406
__netif_receive_skb_core+0x13dd/0x41d0 net/core/dev.c:5432
__netif_receive_skb_one_core net/core/dev.c:5536 [inline]
__netif_receive_skb+0x11c/0x530 net/core/dev.c:5652
process_backlog+0x381/0x760 net/core/dev.c:5980
__napi_poll+0xc7/0x470 net/core/dev.c:6547
napi_poll net/core/dev.c:6614 [inline]
net_rx_action+0x70f/0xeb0 net/core/dev.c:6728
handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
run_ksoftirqd+0xc6/0x120 kernel/softirq.c:938
smpboot_thread_fn+0x52c/0xa30 kernel/smpboot.c:164
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
net_ratelimit: 7957 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:ff:55:ed:7d:b0, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:ff:55:ed:7d:b0, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:ff:55:ed:7d:b0, vlan:0)