INFO: task syz-executor.2:21845 blocked for more than 143 seconds. Not tainted 6.9.0-syzkaller-00967-gcd97950cbcab #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:24912 pid:21845 tgid:21840 ppid:20146 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6838 jbd2_log_wait_commit+0x29f/0x4a0 fs/jbd2/journal.c:697 ext4_fc_commit+0x1d5/0x2060 fs/ext4/fast_commit.c:1199 ext4_fallocate+0xdd4/0x1ff0 fs/ext4/extents.c:4796 vfs_fallocate+0x566/0x6c0 fs/open.c:330 ksys_fallocate fs/open.c:353 [inline] __do_sys_fallocate fs/open.c:361 [inline] __se_sys_fallocate fs/open.c:359 [inline] __x64_sys_fallocate+0xbd/0x110 fs/open.c:359 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff276c7dd69 RSP: 002b:00007ff27799f0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007ff276dabf80 RCX: 00007ff276c7dd69 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007ff276cca49e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000008004 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff276dabf80 R15: 00007ffdb212e748 INFO: task syz-executor.2:21869 blocked for more than 144 seconds. Not tainted 6.9.0-syzkaller-00967-gcd97950cbcab #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:26768 pid:21869 tgid:21840 ppid:20146 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6838 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895 rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178 __down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306 inode_lock include/linux/fs.h:795 [inline] process_measurement+0x450/0x1f60 security/integrity/ima/ima_main.c:248 ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:559 security_file_post_open+0x6f/0xa0 security/security.c:2981 do_open fs/namei.c:3644 [inline] path_openat+0x28b7/0x3240 fs/namei.c:3799 do_filp_open+0x235/0x490 fs/namei.c:3826 do_sys_openat2+0x13e/0x1d0 fs/open.c:1406 do_sys_open fs/open.c:1421 [inline] __do_sys_open fs/open.c:1429 [inline] __se_sys_open fs/open.c:1425 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1425 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff276c7dd69 RSP: 002b:00007ff27797e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007ff276dac050 RCX: 00007ff276c7dd69 RDX: 0000000000000000 RSI: 0000000000145142 RDI: 0000000020007f80 RBP: 00007ff276cca49e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007ff276dac050 R15: 00007ffdb212e748 INFO: task syz-executor.2:21870 blocked for more than 145 seconds. Not tainted 6.9.0-syzkaller-00967-gcd97950cbcab #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:28920 pid:21870 tgid:21840 ppid:20146 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6838 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895 rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178 __down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306 inode_lock include/linux/fs.h:795 [inline] ext4_fallocate+0x149/0x1ff0 fs/ext4/extents.c:4734 vfs_fallocate+0x566/0x6c0 fs/open.c:330 ksys_fallocate fs/open.c:353 [inline] __do_sys_fallocate fs/open.c:361 [inline] __se_sys_fallocate fs/open.c:359 [inline] __x64_sys_fallocate+0xbd/0x110 fs/open.c:359 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff276c7dd69 RSP: 002b:00007ff27795d0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007ff276dac120 RCX: 00007ff276c7dd69 RDX: 0000000000040000 RSI: 0000000000000008 RDI: 0000000000000003 RBP: 00007ff276cca49e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000007000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007ff276dac120 R15: 00007ffdb212e748 INFO: task syz-executor.4:21891 blocked for more than 146 seconds. Not tainted 6.9.0-syzkaller-00967-gcd97950cbcab #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:25488 pid:21891 tgid:21887 ppid:20998 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6838 jbd2_log_wait_commit+0x29f/0x4a0 fs/jbd2/journal.c:697 ext4_fc_commit+0x1d5/0x2060 fs/ext4/fast_commit.c:1199 ext4_fallocate+0xdd4/0x1ff0 fs/ext4/extents.c:4796 vfs_fallocate+0x566/0x6c0 fs/open.c:330 ksys_fallocate fs/open.c:353 [inline] __do_sys_fallocate fs/open.c:361 [inline] __se_sys_fallocate fs/open.c:359 [inline] __x64_sys_fallocate+0xbd/0x110 fs/open.c:359 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6c5b47dd69 RSP: 002b:00007f6c5c1e30c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007f6c5b5abf80 RCX: 00007f6c5b47dd69 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f6c5b4ca49e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000008004 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f6c5b5abf80 R15: 00007ffc9687a008 INFO: task syz-executor.4:21898 blocked for more than 147 seconds. Not tainted 6.9.0-syzkaller-00967-gcd97950cbcab #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:26768 pid:21898 tgid:21887 ppid:20998 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6838 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895 rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178 __down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306 inode_lock include/linux/fs.h:795 [inline] process_measurement+0x450/0x1f60 security/integrity/ima/ima_main.c:248 ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:559 security_file_post_open+0x6f/0xa0 security/security.c:2981 do_open fs/namei.c:3644 [inline] path_openat+0x28b7/0x3240 fs/namei.c:3799 do_filp_open+0x235/0x490 fs/namei.c:3826 do_sys_openat2+0x13e/0x1d0 fs/open.c:1406 do_sys_open fs/open.c:1421 [inline] __do_sys_open fs/open.c:1429 [inline] __se_sys_open fs/open.c:1425 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1425 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6c5b47dd69 RSP: 002b:00007f6c5c1c20c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f6c5b5ac050 RCX: 00007f6c5b47dd69 RDX: 0000000000000000 RSI: 0000000000145142 RDI: 0000000020007f80 RBP: 00007f6c5b4ca49e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f6c5b5ac050 R15: 00007ffc9687a008 INFO: task syz-executor.4:21899 blocked for more than 148 seconds. Not tainted 6.9.0-syzkaller-00967-gcd97950cbcab #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:28920 pid:21899 tgid:21887 ppid:20998 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6838 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895 rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178 __down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306 inode_lock include/linux/fs.h:795 [inline] ext4_fallocate+0x149/0x1ff0 fs/ext4/extents.c:4734 vfs_fallocate+0x566/0x6c0 fs/open.c:330 ksys_fallocate fs/open.c:353 [inline] __do_sys_fallocate fs/open.c:361 [inline] __se_sys_fallocate fs/open.c:359 [inline] __x64_sys_fallocate+0xbd/0x110 fs/open.c:359 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6c5b47dd69 RSP: 002b:00007f6c5c1a10c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007f6c5b5ac120 RCX: 00007f6c5b47dd69 RDX: 0000000000040000 RSI: 0000000000000008 RDI: 0000000000000003 RBP: 00007f6c5b4ca49e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000007000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f6c5b5ac120 R15: 00007ffc9687a008 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 2 locks held by getty/4840: #0: ffff88802a70d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000312b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201 3 locks held by syz-fuzzer/5075: #0: ffff88802f5ce420 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:409 #1: ffff8880520b1800 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:830 [inline] #1: ffff8880520b1800 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_unlinkat+0x26a/0x830 fs/namei.c:4386 #2: ffff888052132200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline] #2: ffff888052132200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_unlink+0xe4/0x600 fs/namei.c:4324 1 lock held by syz-fuzzer/5081: #0: ffff88802cbd2718 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1673 [inline] #0: ffff88802cbd2718 (sk_lock-AF_INET){+.+.}-{0:0}, at: tcp_recvmsg+0x23c/0x920 net/ipv4/tcp.c:2577 4 locks held by kworker/u8:15/13344: #0: ffff888015ecd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3242 [inline] #0: ffff888015ecd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x17c0 kernel/workqueue.c:3348 #1: ffffc9000bdb7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3243 [inline] #1: ffffc9000bdb7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x17c0 kernel/workqueue.c:3348 #2: ffffffff8f59a3d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594 #3: ffff888044a81408 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_destruct+0x110/0x2e0 drivers/net/wireguard/device.c:249 2 locks held by syz-executor.2/21845: #0: ffff88802f5ce420 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2855 [inline] #0: ffff88802f5ce420 (sb_writers#4){.+.+}-{0:0}, at: vfs_fallocate+0x4d3/0x6c0 fs/open.c:329 #1: ffff888052132200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline] #1: ffff888052132200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_fallocate+0x29c/0x1ff0 fs/ext4/extents.c:4765 1 lock held by syz-executor.2/21869: #0: ffff888052132200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline] #0: ffff888052132200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: process_measurement+0x450/0x1f60 security/integrity/ima/ima_main.c:248 2 locks held by syz-executor.2/21870: #0: ffff88802f5ce420 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2855 [inline] #0: ffff88802f5ce420 (sb_writers#4){.+.+}-{0:0}, at: vfs_fallocate+0x4d3/0x6c0 fs/open.c:329 #1: ffff888052132200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline] #1: ffff888052132200 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_fallocate+0x149/0x1ff0 fs/ext4/extents.c:4734 2 locks held by syz-executor.4/21891: #0: ffff88802f5ce420 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2855 [inline] #0: ffff88802f5ce420 (sb_writers#4){.+.+}-{0:0}, at: vfs_fallocate+0x4d3/0x6c0 fs/open.c:329 #1: ffff8880692e5e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline] #1: ffff8880692e5e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_fallocate+0x29c/0x1ff0 fs/ext4/extents.c:4765 1 lock held by syz-executor.4/21898: #0: ffff8880692e5e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline] #0: ffff8880692e5e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: process_measurement+0x450/0x1f60 security/integrity/ima/ima_main.c:248 2 locks held by syz-executor.4/21899: #0: ffff88802f5ce420 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2855 [inline] #0: ffff88802f5ce420 (sb_writers#4){.+.+}-{0:0}, at: vfs_fallocate+0x4d3/0x6c0 fs/open.c:329 #1: ffff8880692e5e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline] #1: ffff8880692e5e00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_fallocate+0x149/0x1ff0 fs/ext4/extents.c:4734 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.9.0-syzkaller-00967-gcd97950cbcab #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 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+0xfde/0x1020 kernel/hung_task.c:380 kthread+0x2f2/0x390 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 21844 Comm: syz-executor.0 Not tainted 6.9.0-syzkaller-00967-gcd97950cbcab #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline] RIP: 0010:write_comp_data kernel/kcov.c:235 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x8/0x90 kernel/kcov.c:311 Code: 44 0a 20 e9 35 28 1a 0a 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 <65> 48 8b 0c 25 c0 d3 03 00 65 8b 05 c0 ba 6d 7e a9 00 01 ff 00 74 RSP: 0018:ffffc900099efd58 EFLAGS: 00000046 RAX: 1ffff11005c75b40 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900099efe30 R08: ffffffff815d369c R09: 1ffff11005c75b40 R10: dffffc0000000000 R11: ffffed1005c75b41 R12: 1ffff11005c75c63 R13: ffff88802e3ae310 R14: 1ffff9200133dfd0 R15: ffff88802e3ada00 FS: 00007fdec26b06c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdec26aff00 CR3: 00000000114b8000 CR4: 0000000000350ef0 Call Trace: __set_task_blocked kernel/signal.c:3065 [inline] __set_current_blocked+0x15c/0x380 kernel/signal.c:3100 __do_sys_rt_sigreturn+0x170/0x270 arch/x86/kernel/signal_64.c:261 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdec18411a9 Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25 RSP: 002b:00007fdec26afb40 EFLAGS: 00000206 ORIG_RAX: 000000000000000f RAX: ffffffffffffffda RBX: 00007fdec19abf80 RCX: 00007fdec18411a9 RDX: 00007fdec26afb40 RSI: 00007fdec26afc70 RDI: 0000000000000021 RBP: 00007fdec18ca49e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 000000000000000b R14: 00007fdec19abf80 R15: 00007ffd6c61adc8