INFO: task syz.1.113:6357 blocked for more than 143 seconds. Not tainted 6.10.0-rc5-syzkaller-00253-gde0a9f448633 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.113 state:D stack:24120 pid:6357 tgid:6343 ppid:5774 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x1796/0x49d0 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 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:791 [inline] bch2_direct_write+0x243/0x3050 fs/bcachefs/fs-io-direct.c:598 bch2_write_iter+0x206/0x2840 fs/bcachefs/fs-io-buffered.c:1135 do_iter_readv_writev+0x5a4/0x800 vfs_writev+0x395/0xbe0 fs/read_write.c:971 do_pwritev fs/read_write.c:1072 [inline] __do_sys_pwritev2 fs/read_write.c:1131 [inline] __se_sys_pwritev2+0x1ca/0x2d0 fs/read_write.c:1122 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efe3b175b99 RSP: 002b:00007efe3bee9048 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007efe3b304078 RCX: 00007efe3b175b99 RDX: 0000000000000001 RSI: 0000000020000100 RDI: 0000000000000005 RBP: 00007efe3b1f677e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007efe3b304078 R15: 00007ffdf20fee78 INFO: task syz.1.113:6358 blocked for more than 143 seconds. Not tainted 6.10.0-rc5-syzkaller-00253-gde0a9f448633 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.113 state:D stack:27392 pid:6358 tgid:6343 ppid:5774 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x1796/0x49d0 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 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:791 [inline] bch2_fallocate_dispatch+0x295/0x3810 fs/bcachefs/fs-io.c:774 vfs_fallocate+0x564/0x6c0 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+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efe3b175b99 RSP: 002b:00007efe3bec8048 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007efe3b304150 RCX: 00007efe3b175b99 RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000005 RBP: 00007efe3b1f677e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007efe3b304150 R15: 00007ffdf20fee78 INFO: task syz.1.113:6359 blocked for more than 144 seconds. Not tainted 6.10.0-rc5-syzkaller-00253-gde0a9f448633 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.113 state:D stack:26264 pid:6359 tgid:6343 ppid:5774 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x1796/0x49d0 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 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:791 [inline] process_measurement+0x43c/0x1fb0 security/integrity/ima/ima_main.c:250 ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:572 security_file_post_open+0x6d/0xa0 security/security.c:2982 do_open fs/namei.c:3652 [inline] path_openat+0x28f6/0x3280 fs/namei.c:3807 do_filp_open+0x235/0x490 fs/namei.c:3834 do_sys_openat2+0x13e/0x1d0 fs/open.c:1405 do_sys_open fs/open.c:1420 [inline] __do_sys_openat fs/open.c:1436 [inline] __se_sys_openat fs/open.c:1431 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1431 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efe3b175b99 RSP: 002b:00007efe3bea7048 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007efe3b304228 RCX: 00007efe3b175b99 RDX: 000000000006b142 RSI: 0000000020004400 RDI: ffffffffffffff9c RBP: 00007efe3b1f677e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007efe3b304228 R15: 00007ffdf20fee78 INFO: task syz.1.113:6360 blocked for more than 144 seconds. Not tainted 6.10.0-rc5-syzkaller-00253-gde0a9f448633 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.113 state:D stack:19360 pid:6360 tgid:6343 ppid:5774 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x1796/0x49d0 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 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:791 [inline] process_measurement+0x43c/0x1fb0 security/integrity/ima/ima_main.c:250 ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:572 security_file_post_open+0x6d/0xa0 security/security.c:2982 do_open fs/namei.c:3652 [inline] path_openat+0x28f6/0x3280 fs/namei.c:3807 do_filp_open+0x235/0x490 fs/namei.c:3834 do_sys_openat2+0x13e/0x1d0 fs/open.c:1405 do_sys_open fs/open.c:1420 [inline] __do_sys_open fs/open.c:1428 [inline] __se_sys_open fs/open.c:1424 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1424 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efe3b175b99 RSP: 002b:00007efe3be86048 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007efe3b304300 RCX: 00007efe3b175b99 RDX: 0000000000000000 RSI: 0000000000141042 RDI: 0000000020000100 RBP: 00007efe3b1f677e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007efe3b304300 R15: 00007ffdf20fee78 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 5 locks held by kworker/u8:4/62: #0: ffff888015ed3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline] #0: ffff888015ed3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329 #1: ffffc900015d7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline] #1: ffffc900015d7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329 #2: ffffffff8f5c8450 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594 #3: ffffffff8f5d4c88 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 net/core/dev.c:11746 #4: ffffffff8e339338 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline] #4: ffffffff8e339338 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:939 3 locks held by kworker/u8:8/2469: #0: ffff88802a854148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline] #0: ffff88802a854148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329 #1: ffffc900098b7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline] #1: ffffc900098b7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329 #2: ffffffff8f5d4c88 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4193 1 lock held by dhcpcd/4747: #0: ffffffff8f5d4c88 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2ce/0x1bc0 net/ipv4/devinet.c:1101 2 locks held by getty/4834: #0: ffff88807d1100a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211 3 locks held by kworker/1:3/5127: #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329 #1: ffffc9000420fd00 (deferred_process_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline] #1: ffffc9000420fd00 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329 #2: ffffffff8f5d4c88 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104 3 locks held by kworker/0:6/5188: #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329 #1: ffffc90004787d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline] #1: ffffc90004787d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329 #2: ffffffff8f5d4c88 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276 3 locks held by syz.1.113/6344: #0: ffff888062d5a5c8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x310 fs/file.c:1191 #1: ffff88807d53c420 (sb_writers#15){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline] #1: ffff88807d53c420 (sb_writers#15){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 fs/read_write.c:586 #2: ffff888062039020 (&sb->s_type->i_mutex_key#23){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline] #2: ffff888062039020 (&sb->s_type->i_mutex_key#23){+.+.}-{3:3}, at: bch2_direct_write+0x243/0x3050 fs/bcachefs/fs-io-direct.c:598 2 locks held by syz.1.113/6357: #0: ffff88807d53c420 (sb_writers#15){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline] #0: ffff88807d53c420 (sb_writers#15){.+.+}-{0:0}, at: vfs_writev+0x2d9/0xbe0 fs/read_write.c:969 #1: ffff888062039020 (&sb->s_type->i_mutex_key#23){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline] #1: ffff888062039020 (&sb->s_type->i_mutex_key#23){+.+.}-{3:3}, at: bch2_direct_write+0x243/0x3050 fs/bcachefs/fs-io-direct.c:598 2 locks held by syz.1.113/6358: #0: ffff88807d53c420 (sb_writers#15){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline] #0: ffff88807d53c420 (sb_writers#15){.+.+}-{0:0}, at: vfs_fallocate+0x4d3/0x6c0 fs/open.c:329 #1: ffff888062039020 (&sb->s_type->i_mutex_key#23){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline] #1: ffff888062039020 (&sb->s_type->i_mutex_key#23){+.+.}-{3:3}, at: bch2_fallocate_dispatch+0x295/0x3810 fs/bcachefs/fs-io.c:774 1 lock held by syz.1.113/6359: #0: ffff888062039020 (&sb->s_type->i_mutex_key#23){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline] #0: ffff888062039020 (&sb->s_type->i_mutex_key#23){+.+.}-{3:3}, at: process_measurement+0x43c/0x1fb0 security/integrity/ima/ima_main.c:250 1 lock held by syz.1.113/6360: #0: ffff888062039020 (&sb->s_type->i_mutex_key#23){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline] #0: ffff888062039020 (&sb->s_type->i_mutex_key#23){+.+.}-{3:3}, at: process_measurement+0x43c/0x1fb0 security/integrity/ima/ima_main.c:250 3 locks held by syz-executor/8156: #0: ffffffff8f63b0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f63afa8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f63afa8 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f63afa8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 #2: ffffffff8f5d4c88 (rtnl_mutex){+.+.}-{3:3}, at: wiphy_register+0x1d26/0x2b30 net/wireless/core.c:962 1 lock held by syz-executor/8303: #0: ffffffff8f5d4c88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f5d4c88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632 1 lock held by syz-executor/8375: #0: ffffffff8f5d4c88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f5d4c88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632 1 lock held by syz-executor/8517: #0: ffffffff8f5d4c88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f5d4c88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc5-syzkaller-00253-gde0a9f448633 #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+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:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xfde/0x1020 kernel/hung_task.c:379 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/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: 9 Comm: kworker/0:1 Not tainted 6.10.0-rc5-syzkaller-00253-gde0a9f448633 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: events nsim_dev_trap_report_work RIP: 0010:in_aton+0x2cd/0x410 net/core/utils.c:67 Code: 78 a1 f8 eb dc e8 43 0d 3f f8 c1 e5 10 e9 d6 00 00 00 e8 36 0d 3f f8 eb 0c e8 2f 0d 3f f8 eb 05 e8 28 0d 3f f8 44 0b 74 24 08 <31> ff 89 de e8 1a 10 3f f8 80 fb 01 49 83 df ff 4d 01 e7 4c 89 f8 RSP: 0018:ffffc900000e7a98 EFLAGS: 00000202 RAX: ffffffff89571c21 RBX: 000000000000002e RCX: ffff888016ef0000 RDX: 0000000000000000 RSI: ffffffff8f5d7580 RDI: 000000000000002e RBP: ffffffff8c6a7a83 R08: 0000000000000001 R09: ffffffff89571bbc R10: 0000000000000003 R11: ffff888016ef0000 R12: 0000000000000005 R13: dffffc0000000000 R14: 0000000000c00002 R15: ffffffff8c6a7a82 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd7b5ad0ab8 CR3: 000000002df42000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:763 [inline] nsim_dev_trap_report drivers/net/netdevsim/dev.c:805 [inline] nsim_dev_trap_report_work+0x470/0xaa0 drivers/net/netdevsim/dev.c:850 process_one_work kernel/workqueue.c:3248 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329 worker_thread+0x86d/0xd50 kernel/workqueue.c:3409 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244