INFO: task syz.1.2:3628 blocked for more than 143 seconds. Not tainted 6.1.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.2 state:D stack:26384 pid:3628 ppid:3551 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 rwsem_down_write_slowpath+0xea1/0x14b0 kernel/locking/rwsem.c:1189 inode_lock include/linux/fs.h:758 [inline] process_measurement+0x446/0x21b0 security/integrity/ima/ima_main.c:242 ima_file_check+0xed/0x170 security/integrity/ima/ima_main.c:534 do_open fs/namei.c:3630 [inline] path_openat+0x2687/0x2e60 fs/namei.c:3785 do_filp_open+0x230/0x480 fs/namei.c:3812 do_sys_openat2+0x13b/0x500 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1345 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f134bb75bd9 RSP: 002b:00007f134c8c7048 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f134bd04038 RCX: 00007f134bb75bd9 RDX: 0000000000183341 RSI: 0000000020000080 RDI: ffffffffffffff9c RBP: 00007f134bbe4aa1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f134bd04038 R15: 00007ffd32b00db8 INFO: task syz.1.2:3629 blocked for more than 144 seconds. Not tainted 6.1.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.2 state:D stack:25752 pid:3629 ppid:3551 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 rwsem_down_write_slowpath+0xea1/0x14b0 kernel/locking/rwsem.c:1189 f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] f2fs_issue_checkpoint+0x2d2/0x4d0 fs/f2fs/checkpoint.c:1864 f2fs_create+0x862/0xa10 fs/f2fs/namei.c:377 lookup_open fs/namei.c:3484 [inline] open_last_lookups fs/namei.c:3552 [inline] path_openat+0x12f1/0x2e60 fs/namei.c:3782 do_filp_open+0x230/0x480 fs/namei.c:3812 do_sys_openat2+0x13b/0x500 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1345 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f134bb75bd9 RSP: 002b:00007f134c8a6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f134bd04110 RCX: 00007f134bb75bd9 RDX: 00000000000026e1 RSI: 00000000200000c0 RDI: ffffffffffffff9c RBP: 00007f134bbe4aa1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f134bd04110 R15: 00007ffd32b00db8 INFO: task syz.3.14:3696 blocked for more than 145 seconds. Not tainted 6.1.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.14 state:D stack:27000 pid:3696 ppid:3552 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 rwsem_down_write_slowpath+0xea1/0x14b0 kernel/locking/rwsem.c:1189 inode_lock include/linux/fs.h:758 [inline] process_measurement+0x446/0x21b0 security/integrity/ima/ima_main.c:242 ima_file_check+0xed/0x170 security/integrity/ima/ima_main.c:534 do_open fs/namei.c:3630 [inline] path_openat+0x2687/0x2e60 fs/namei.c:3785 do_filp_open+0x230/0x480 fs/namei.c:3812 do_sys_openat2+0x13b/0x500 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1345 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f2111f75bd9 RSP: 002b:00007f2112dfd048 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f2112104038 RCX: 00007f2111f75bd9 RDX: 0000000000183341 RSI: 0000000020000080 RDI: ffffffffffffff9c RBP: 00007f2111fe4aa1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f2112104038 R15: 00007ffde2b9e6f8 INFO: task syz.3.14:3697 blocked for more than 147 seconds. Not tainted 6.1.97-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.14 state:D stack:26040 pid:3697 ppid:3552 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 rwsem_down_write_slowpath+0xea1/0x14b0 kernel/locking/rwsem.c:1189 f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] f2fs_issue_checkpoint+0x2d2/0x4d0 fs/f2fs/checkpoint.c:1864 f2fs_create+0x862/0xa10 fs/f2fs/namei.c:377 lookup_open fs/namei.c:3484 [inline] open_last_lookups fs/namei.c:3552 [inline] path_openat+0x12f1/0x2e60 fs/namei.c:3782 do_filp_open+0x230/0x480 fs/namei.c:3812 do_sys_openat2+0x13b/0x500 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1345 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f2111f75bd9 RSP: 002b:00007f2112ddc048 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f2112104110 RCX: 00007f2111f75bd9 RDX: 00000000000026e1 RSI: 00000000200000c0 RDI: ffffffffffffff9c RBP: 00007f2111fe4aa1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f2112104110 R15: 00007ffde2b9e6f8 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8d12aed0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516 1 lock held by rcu_tasks_trace/13: #0: ffffffff8d12b6d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516 2 locks held by kworker/1:0/22: #0: ffff888012472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #1: ffffc900001c7d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 1 lock held by khungtaskd/27: #0: ffffffff8d12ad00 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] #0: ffffffff8d12ad00 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline] #0: ffffffff8d12ad00 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6494 4 locks held by kworker/u4:3/46: #0: ffff888017a4d938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #1: ffffc90000b77d20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #2: ffff88807c8c20e0 (&type->s_umount_key#59){++++}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:415 #3: ffff88804eb35140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] #3: ffff88804eb35140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_balance_fs+0x4fb/0x6c0 fs/f2fs/segment.c:428 2 locks held by getty/3300: #0: ffff888029129098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2198 5 locks held by syz.1.2/3623: 2 locks held by syz.1.2/3628: #0: ffff888023cd2460 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393 #1: ffff88805ea31bf0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff88805ea31bf0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: process_measurement+0x446/0x21b0 security/integrity/ima/ima_main.c:242 3 locks held by syz.1.2/3629: #0: ffff888023cd2460 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393 #1: ffff88805ea31310 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff88805ea31310 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: open_last_lookups fs/namei.c:3549 [inline] #1: ffff88805ea31310 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: path_openat+0x7b6/0x2e60 fs/namei.c:3782 #2: ffff8880782e1140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] #2: ffff8880782e1140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_issue_checkpoint+0x2d2/0x4d0 fs/f2fs/checkpoint.c:1864 4 locks held by kworker/u4:6/3651: #0: ffff888017a4d938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #1: ffffc900045bfd20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #2: ffff8880521520e0 (&type->s_umount_key#59){++++}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:415 #3: ffff888059f1d140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] #3: ffff888059f1d140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_balance_fs+0x4fb/0x6c0 fs/f2fs/segment.c:428 4 locks held by kworker/u4:7/3668: #0: ffff888017a4d938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #1: ffffc900041ffd20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #2: ffff8880200980e0 (&type->s_umount_key#59){++++}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:415 #3: ffff88804ca4d140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] #3: ffff88804ca4d140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_balance_fs+0x4fb/0x6c0 fs/f2fs/segment.c:428 4 locks held by syz.3.14/3682: 2 locks held by syz.3.14/3696: #0: ffff888020098460 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393 #1: ffff88805ea33690 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff88805ea33690 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: process_measurement+0x446/0x21b0 security/integrity/ima/ima_main.c:242 3 locks held by syz.3.14/3697: #0: ffff888020098460 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393 #1: ffff88805ead9310 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff88805ead9310 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: open_last_lookups fs/namei.c:3549 [inline] #1: ffff88805ead9310 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: path_openat+0x7b6/0x2e60 fs/namei.c:3782 #2: ffff88804ca4d140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] #2: ffff88804ca4d140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_issue_checkpoint+0x2d2/0x4d0 fs/f2fs/checkpoint.c:1864 4 locks held by kworker/u4:14/3804: #0: ffff888017a4d938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #1: ffffc90005077d20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #2: ffff888023cd20e0 (&type->s_umount_key#59){++++}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:415 #3: ffff8880782e1140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] #3: ffff8880782e1140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_balance_fs+0x4fb/0x6c0 fs/f2fs/segment.c:428 5 locks held by syz.4.41/3819: 2 locks held by syz.4.41/3835: #0: ffff888052152460 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393 #1: ffff88805eadf4b0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff88805eadf4b0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: process_measurement+0x446/0x21b0 security/integrity/ima/ima_main.c:242 4 locks held by kworker/u4:18/4066: #0: ffff888017a4d938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #1: ffffc900039bfd20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #2: ffff88804cdd60e0 (&type->s_umount_key#59){++++}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:415 #3: ffff8880742c5140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] #3: ffff8880742c5140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_balance_fs+0x4fb/0x6c0 fs/f2fs/segment.c:428 5 locks held by syz.2.94/4195: 2 locks held by syz.2.94/4196: #0: ffff88804cdd6460 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393 #1: ffff88805ea362f0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff88805ea362f0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: process_measurement+0x446/0x21b0 security/integrity/ima/ima_main.c:242 3 locks held by syz.2.94/4199: #0: ffff88804cdd6460 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393 #1: ffff88805ea35a10 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff88805ea35a10 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: open_last_lookups fs/namei.c:3549 [inline] #1: ffff88805ea35a10 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: path_openat+0x7b6/0x2e60 fs/namei.c:3782 #2: ffff8880742c5140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] #2: ffff8880742c5140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_issue_checkpoint+0x2d2/0x4d0 fs/f2fs/checkpoint.c:1864 4 locks held by syz.0.122/4321: #0: ffff88807c8c2460 (sb_writers#12){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3010 [inline] #0: ffff88807c8c2460 (sb_writers#12){.+.+}-{0:0}, at: vfs_fallocate+0x4ba/0x6b0 fs/open.c:322 #1: ffff88805ea36bd0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff88805ea36bd0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: f2fs_fallocate+0x22a/0x9f0 fs/f2fs/file.c:1817 #2: ffff88804eb35288 (&sbi->pin_sem){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] #2: ffff88804eb35288 (&sbi->pin_sem){+.+.}-{3:3}, at: expand_inode_data+0x50e/0xaf0 fs/f2fs/file.c:1742 #3: ffff88804eb35140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] #3: ffff88804eb35140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_balance_fs+0x4fb/0x6c0 fs/f2fs/segment.c:428 2 locks held by syz.0.122/4322: #0: ffff88807c8c2460 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393 #1: ffff88805ea36bd0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff88805ea36bd0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: process_measurement+0x446/0x21b0 security/integrity/ima/ima_main.c:242 3 locks held by syz.0.122/4323: 3 locks held by kworker/u4:21/4373: 2 locks held by dhcpcd/4900: #0: ffff88807cafa130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1748 [inline] #0: ffff88807cafa130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd00 net/packet/af_packet.c:3197 #1: ffffffff8d1302f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline] #1: ffffffff8d1302f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4f0/0x930 kernel/rcu/tree_exp.h:962 2 locks held by dhcpcd/4901: #0: ffff888059c36130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1748 [inline] #0: ffff888059c36130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd00 net/packet/af_packet.c:3197 #1: ffffffff8d1302f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline] #1: ffffffff8d1302f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x360/0x930 kernel/rcu/tree_exp.h:962 1 lock held by dhcpcd/4902: #0: ffff88807aee8130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1748 [inline] #0: ffff88807aee8130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd00 net/packet/af_packet.c:3197 1 lock held by dhcpcd/4903: #0: ffff88807e3d0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1748 [inline] #0: ffff88807e3d0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd00 net/packet/af_packet.c:3197 1 lock held by dhcpcd/4904: #0: ffff888051c12130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1748 [inline] #0: ffff888051c12130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd00 net/packet/af_packet.c:3197 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.1.97-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 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+0x1b0/0x3f0 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:308 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 16 Comm: rcu_preempt Not tainted 6.1.97-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:native_irq_enable arch/x86/include/asm/irqflags.h:45 [inline] RIP: 0010:arch_local_irq_enable arch/x86/include/asm/irqflags.h:80 [inline] RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:138 [inline] RIP: 0010:__free_object+0x286/0xa80 lib/debugobjects.c:354 Code: 80 3c 2b 00 74 08 4c 89 f7 e8 76 b2 a4 fd f6 84 24 a1 00 00 00 02 0f 85 92 07 00 00 f7 44 24 10 00 02 00 00 0f 84 24 07 00 00 e9 1e 07 00 00 45 31 e4 e9 d8 01 00 00 48 b8 00 01 00 00 00 00 RSP: 0018:ffffc90000157980 EFLAGS: 00000006 RAX: 7f298396aa5faa00 RBX: 1ffff9200002af44 RCX: ffffffff91c94103 RDX: dffffc0000000000 RSI: ffffffff8aec0240 RDI: ffffffff8b3d4760 RBP: ffffc90000157b58 R08: dffffc0000000000 R09: ffffc90000157a60 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b9837570 R13: dffffc0000000000 R14: ffffc90000157a20 R15: ffff8880b9837568 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ae89352600 CR3: 0000000028ddd000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: free_object lib/debugobjects.c:423 [inline] debug_object_free+0x2c1/0x460 lib/debugobjects.c:855 destroy_timer_on_stack kernel/time/timer.c:812 [inline] schedule_timeout+0x1d0/0x300 kernel/time/timer.c:1969 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308