F2FS-fs (loop4): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 F2FS-fs (loop2): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 F2FS-fs (loop4): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 INFO: task syz-executor.2:8142 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.2 D24216 8142 1 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 deactivate_super+0x16c/0x1a0 fs/super.c:359 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f941d460aa7 Code: Bad RIP value. RSP: 002b:00007ffc979b28c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f941d460aa7 RDX: 00007ffc979b299a RSI: 000000000000000a RDI: 00007ffc979b2990 RBP: 00007ffc979b2990 R08: 00000000ffffffff R09: 00007ffc979b2760 R10: 000055555673b903 R11: 0000000000000246 R12: 00007f941d4b9b2e R13: 00007ffc979b3a50 R14: 000055555673b810 R15: 00007ffc979b3a90 INFO: task syz-executor.4:8208 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.4 D24128 8208 1 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 deactivate_super+0x16c/0x1a0 fs/super.c:359 f2fs_msg: 11301 callbacks suppressed F2FS-fs (loop4): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 F2FS-fs (loop2): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 F2FS-fs (loop2): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098 F2FS-fs (loop4): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 task_work_run+0x148/0x1c0 kernel/task_work.c:113 F2FS-fs (loop4): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 F2FS-fs (loop4): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 F2FS-fs (loop2): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 F2FS-fs (loop2): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 F2FS-fs (loop4): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 F2FS-fs (loop2): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fc7009b6aa7 Code: Bad RIP value. RSP: 002b:00007ffebed4e0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fc7009b6aa7 RDX: 00007ffebed4e1ba RSI: 000000000000000a RDI: 00007ffebed4e1b0 RBP: 00007ffebed4e1b0 R08: 00000000ffffffff R09: 00007ffebed4df80 R10: 00005555557a9903 R11: 0000000000000246 R12: 00007fc700a0fb2e R13: 00007ffebed4f270 R14: 00005555557a9810 R15: 00007ffebed4f2b0 INFO: task syz-executor.3:11608 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.3 D29472 11608 8196 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 wb_wait_for_completion+0x175/0x1f0 fs/fs-writeback.c:222 sync_inodes_sb+0x19d/0x9a0 fs/fs-writeback.c:2459 sync_inodes_one_sb+0x4d/0x60 fs/sync.c:74 iterate_supers+0x13c/0x290 fs/super.c:633 ksys_sync+0x86/0x150 fs/sync.c:113 __ia32_sys_sync+0xa/0x10 fs/sync.c:124 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f18569c6639 Code: Bad RIP value. RSP: 002b:00007f1854f18168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f1856ae7050 RCX: 00007f18569c6639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f1856a21ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9d26d84f R14: 00007f1854f18300 R15: 0000000000022000 INFO: task syz-executor.1:11616 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.1 D27368 11616 8175 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_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x20a/0x390 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x44/0x80 kernel/locking/rwsem.c:26 iterate_supers+0xdb/0x290 fs/super.c:631 ksys_sync+0x86/0x150 fs/sync.c:113 __ia32_sys_sync+0xa/0x10 fs/sync.c:124 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fe6c18d6639 Code: Bad RIP value. RSP: 002b:00007fe6bfe49168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007fe6c19f6f80 RCX: 00007fe6c18d6639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fe6c1931ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe55c1ee8f R14: 00007fe6bfe49300 R15: 0000000000022000 INFO: task syz-executor.1:11621 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.1 D30024 11621 8175 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_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x20a/0x390 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x44/0x80 kernel/locking/rwsem.c:26 iterate_supers+0xdb/0x290 fs/super.c:631 ksys_sync+0x86/0x150 fs/sync.c:113 __ia32_sys_sync+0xa/0x10 fs/sync.c:124 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fe6c18d6639 Code: Bad RIP value. RSP: 002b:00007fe6bfe28168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007fe6c19f7050 RCX: 00007fe6c18d6639 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fe6c1931ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe55c1ee8f R14: 00007fe6bfe28300 R15: 0000000000022000 Showing all locks held in the system: 6 locks held by kworker/u4:2/163: 1 lock held by khungtaskd/1570: #0: 00000000357dc059 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7801: #0: 0000000040d75616 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 1 lock held by syz-executor.2/8142: #0: 000000004ca28b89 (&type->s_umount_key#65){++++}, at: deactivate_super+0x16c/0x1a0 fs/super.c:359 1 lock held by syz-executor.4/8208: #0: 0000000077e45286 (&type->s_umount_key#65){++++}, at: deactivate_super+0x16c/0x1a0 fs/super.c:359 4 locks held by kworker/u4:7/9527: 2 locks held by syz-executor.3/11608: #0: 0000000077e45286 (&type->s_umount_key#65){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 000000004a3329b0 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 000000004a3329b0 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 1 lock held by syz-executor.1/11616: #0: 0000000077e45286 (&type->s_umount_key#65){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 1 lock held by syz-executor.1/11621: #0: 0000000077e45286 (&type->s_umount_key#65){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 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 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 163 Comm: kworker/u4:2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: writeback wb_workfn (flush-7:2) RIP: 0010:preempt_count_equals kernel/sched/core.c:6126 [inline] RIP: 0010:___might_sleep+0x70/0x2b0 kernel/sched/core.c:6159 Code: 8b 34 25 c0 df 01 00 49 8d be 70 03 00 00 41 81 e5 ff ff ff 7f 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e e8 01 00 00 45 03 ae 70 03 00 00 44 39 eb RSP: 0018:ffff8880b4c96e20 EFLAGS: 00000a06 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 1ffff1101699147e RSI: 00000000ffffffff RDI: ffff8880b4c8a3f0 RBP: ffffffff886a0dc0 R08: ffff8880a3157ac8 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000017 R13: 0000000000000000 R14: ffff8880b4c8a080 R15: ffff88804cd8c700 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0037557000 CR3: 000000009cd4c000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: down_read+0x17/0x80 kernel/locking/rwsem.c:23 check_valid_map fs/f2fs/gc.c:454 [inline] gc_data_segment fs/f2fs/gc.c:929 [inline] do_garbage_collect fs/f2fs/gc.c:1109 [inline] f2fs_gc+0x1cf3/0x8c90 fs/f2fs/gc.c:1196 f2fs_balance_fs+0x71a/0xd80 fs/f2fs/segment.c:513 __write_data_page+0xab8/0x22d0 fs/f2fs/data.c:1975 f2fs_write_cache_pages+0x96e/0x13e0 fs/f2fs/data.c:2107 __f2fs_write_data_pages fs/f2fs/data.c:2217 [inline] f2fs_write_data_pages+0x498/0x1060 fs/f2fs/data.c:2244 do_writepages+0xe5/0x290 mm/page-writeback.c:2344 __writeback_single_inode+0x10c/0x11d0 fs/fs-writeback.c:1385 writeback_sb_inodes+0x537/0xef0 fs/fs-writeback.c:1647 __writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1716 wb_writeback+0x841/0xcc0 fs/fs-writeback.c:1822 wb_check_start_all fs/fs-writeback.c:1946 [inline] wb_do_writeback fs/fs-writeback.c:1972 [inline] wb_workfn+0xbf4/0x1250 fs/fs-writeback.c:2006 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415