INFO: task syz-executor.5:12593 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. IPVS: ftp: loaded support on port[0] = 21 syz-executor.5 D24208 12593 8130 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] f2fs_file_write_iter+0x218/0xbe0 fs/f2fs/file.c:2996 call_write_iter include/linux/fs.h:1821 [inline] do_iter_readv_writev+0x668/0x790 fs/read_write.c:681 do_iter_write+0x182/0x5d0 fs/read_write.c:960 vfs_iter_write+0x70/0xa0 fs/read_write.c:973 iter_file_splice_write+0x60d/0xbb0 fs/splice.c:750 do_splice_from fs/splice.c:852 [inline] direct_splice_actor+0x115/0x160 fs/splice.c:1025 splice_direct_to_actor+0x33f/0x8d0 fs/splice.c:980 do_splice_direct+0x1a7/0x270 fs/splice.c:1068 do_sendfile+0x550/0xc30 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f59130300f9 Code: Bad RIP value. RSP: 002b:00007f590d181168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f5913150050 RCX: 00007f59130300f9 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005 RBP: 00007f591308bae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe8556ea0f R14: 00007f590d181300 R15: 0000000000022000 INFO: task syz-executor.5:12598 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D26712 12598 8130 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 f2fs_balance_fs+0x709/0xd80 fs/f2fs/segment.c:512 f2fs_setattr+0x5b6/0x12b0 fs/f2fs/file.c:852 notify_change+0x70b/0xfc0 fs/attr.c:334 do_truncate+0x134/0x1f0 fs/open.c:63 handle_truncate fs/namei.c:3009 [inline] do_last fs/namei.c:3427 [inline] path_openat+0x2308/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 f2fs_msg: 2660 callbacks suppressed F2FS-fs (loop5): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f59130300f9 F2FS-fs (loop5): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 Code: Bad RIP value. RSP: 002b:00007f590d11e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 F2FS-fs (loop5): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 RAX: ffffffffffffffda RBX: 00007f59131502c0 RCX: 00007f59130300f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007f591308bae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 F2FS-fs (loop5): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 R13: 00007ffe8556ea0f R14: 00007f590d11e300 R15: 0000000000022000 F2FS-fs (loop5): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 Showing all locks held in the system: 4 locks held by kworker/u4:3/194: #0: 00000000a46d66ac ((wq_completion)"writeback"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 F2FS-fs (loop5): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 #1: 00000000bae127af ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 000000006a1ee70e (&type->s_umount_key#51){++++}, at: trylock_super+0x1d/0x100 fs/super.c:412 F2FS-fs (loop5): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 #3: 000000000172e321 (&sbi->gc_mutex){+.+.}, at: f2fs_balance_fs+0x709/0xd80 fs/f2fs/segment.c:512 F2FS-fs (loop5): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 1 lock held by khungtaskd/1568: #0: 000000001a69bae2 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 F2FS-fs (loop5): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 3 locks held by kworker/u4:4/2922: F2FS-fs (loop5): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 1 lock held by in:imklog/7836: #0: 000000001a6ff138 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 1 lock held by syz-fuzzer/8100: #0: 00000000415e3a69 (&mm->mmap_sem){++++}, at: __do_page_fault+0x97f/0xd60 arch/x86/mm/fault.c:1348 2 locks held by kworker/1:5/11612: #0: 0000000049ae8634 ((wq_completion)"rcu_gp"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000004364231a ((work_completion)(&rew.rew_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 4 locks held by syz-executor.5/12567: 2 locks held by syz-executor.5/12593: #0: 0000000057fda52d (sb_writers#15){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline] #0: 0000000057fda52d (sb_writers#15){.+.+}, at: do_sendfile+0x97d/0xc30 fs/read_write.c:1446 #1: 000000009bc64c05 (&sb->s_type->i_mutex_key#22){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 000000009bc64c05 (&sb->s_type->i_mutex_key#22){+.+.}, at: f2fs_file_write_iter+0x218/0xbe0 fs/f2fs/file.c:2996 3 locks held by syz-executor.5/12598: #0: 0000000057fda52d (sb_writers#15){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 0000000057fda52d (sb_writers#15){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 000000009bc64c05 (&sb->s_type->i_mutex_key#22){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 000000009bc64c05 (&sb->s_type->i_mutex_key#22){+.+.}, at: do_truncate+0x125/0x1f0 fs/open.c:61 #2: 000000000172e321 (&sbi->gc_mutex){+.+.}, at: f2fs_balance_fs+0x709/0xd80 fs/f2fs/segment.c:512 5 locks held by kworker/u4:13/13462: #0: 00000000621af858 ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000043c03115 (net_cleanup_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 0000000092bf2d75 (pernet_ops_rwsem){++++}, at: cleanup_net+0xa8/0x8b0 net/core/net_namespace.c:521 #3: 000000004ac0ca50 (rtnl_mutex){+.+.}, at: ip6gre_exit_batch_net+0x82/0x6c0 net/ipv6/ip6_gre.c:1632 #4: 00000000e91af424 (rcu_preempt_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline] #4: 00000000e91af424 (rcu_preempt_state.exp_mutex){+.+.}, at: _synchronize_rcu_expedited+0x4dc/0x6f0 kernel/rcu/tree_exp.h:667 2 locks held by syz-executor.0/17847: 1 lock held by syz-executor.5/17871: #0: 00000000bc287043 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline] #0: 00000000bc287043 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455 1 lock held by syz-executor.3/17881: #0: 0000000017ec60b2 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline] #0: 0000000017ec60b2 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455 2 locks held by syz-executor.5/17882: #0: 0000000017ec60b2 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline] #0: 0000000017ec60b2 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455 #1: 000000001a69bae2 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 000000001a69bae2 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1568 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 17840 Comm: systemd-udevd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 RIP: 0010:__sanitizer_cov_trace_const_cmp8+0xa/0x20 kernel/kcov.c:195 Code: 48 8b 0c 24 89 f2 89 fe bf 05 00 00 00 e9 ce fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 0c 24 48 89 f2 48 89 fe 07 00 00 00 e9 ac fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 RSP: 0018:ffff8880494ffa20 EFLAGS: 00000246 RAX: ffff8880a2f6f4a8 RBX: 0000000000000000 RCX: ffffffff818b96c1 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8880a2f6f000 R08: 0000000000000001 R09: 00007ff60eb63000 R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 00007ff60ea96000 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055cd5a2dac70 CR3: 0000000040fbc000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: zap_pte_range mm/memory.c:1317 [inline] zap_pmd_range mm/memory.c:1463 [inline] zap_pud_range mm/memory.c:1492 [inline] zap_p4d_range mm/memory.c:1513 [inline] unmap_page_range+0xac1/0x2c50 mm/memory.c:1534 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1016 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1037 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 __do_sys_exit_group kernel/exit.c:978 [inline] __se_sys_exit_group kernel/exit.c:976 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:976 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7ff60ee22618 Code: 00 00 be 3c 00 00 00 eb 19 66 0f 1f 84 00 00 00 00 00 48 89 d7 89 f0 0f 05 48 3d 00 f0 ff ff 77 21 f4 48 89 d7 44 89 c0 0f 05 <48> 3d 00 f0 ff ff 76 e0 f7 d8 64 41 89 01 eb d8 0f 1f 84 00 00 00 RSP: 002b:00007ffc0a9710b8 EFLAGS: 00000216 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007ffc0a971180 RCX: 00007ff60ee22618 RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 RBP: 00007ffc0a971230 R08: 00000000000000e7 R09: fffffffffffffe50 R10: 00000000ffffffff R11: 0000000000000216 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000003 R15: 000000000000000e