XFS (loop5): First 128 bytes of corrupted metadata buffer: 00000000c4e86d7e: 07 42 54 42 00 00 00 01 ff ff ff ff ff ff ff ff .BTB............ 0000000028ef6c1b: 00 00 00 42 00 00 7f be 00 00 00 42 00 00 7f be ...B.......B.... INFO: task syz-executor.5:8141 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 00000000db1be522: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 000000009ceec07a: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000520d180e: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000000c766158: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000c289b334: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000eea7a042: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ syz-executor.5 D24120 8141 1 0x00000004 XFS (loop5): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x4 len 1 error 117 Call Trace: XFS (loop5): page discard on page 000000002f6bded6, inode 0x29, offset 5558272. context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 XFS (loop5): Metadata corruption detected at xfs_allocbt_verify+0x327/0x4a0 fs/xfs/libxfs/xfs_alloc_btree.c:329, xfs_allocbt block 0x4 XFS (loop5): Unmount and run xfs_repair XFS (loop5): First 128 bytes of corrupted metadata buffer: schedule+0x8d/0x1b0 kernel/sched/core.c:3561 00000000427bd2e5: 07 42 54 42 00 00 00 01 ff ff ff ff ff ff ff ff .BTB............ wb_wait_for_completion+0x175/0x1f0 fs/fs-writeback.c:222 00000000ae022b6b: 00 00 00 42 00 00 7f be 00 00 00 42 00 00 7f be ...B.......B.... 0000000086967239: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000005077be1b: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ sync_inodes_sb+0x19d/0x9a0 fs/fs-writeback.c:2459 00000000fd762f8d: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000004d3985b8: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000ee4ba1d9: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000007017e1fe: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ __sync_filesystem fs/sync.c:34 [inline] sync_filesystem+0x15c/0x250 fs/sync.c:67 generic_shutdown_super+0x70/0x370 fs/super.c:442 XFS (loop5): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x4 len 1 error 117 kill_block_super+0x97/0xf0 fs/super.c:1185 XFS (loop5): page discard on page 000000006ed3cc6b, inode 0x29, offset 5562368. XFS (loop5): Metadata corruption detected at xfs_allocbt_verify+0x327/0x4a0 fs/xfs/libxfs/xfs_alloc_btree.c:329, xfs_allocbt block 0x4 deactivate_locked_super+0x94/0x160 fs/super.c:329 deactivate_super+0x174/0x1a0 fs/super.c:360 XFS (loop5): Unmount and run xfs_repair XFS (loop5): First 128 bytes of corrupted metadata buffer: cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098 00000000e3a56455: 07 42 54 42 00 00 00 01 ff ff ff ff ff ff ff ff .BTB............ task_work_run+0x148/0x1c0 kernel/task_work.c:113 00000000b6c839d9: 00 00 00 42 00 00 7f be 00 00 00 42 00 00 7f be ...B.......B.... tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 00000000a254f8a5: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 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 000000003d9c54e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ entry_SYSCALL_64_after_hwframe+0x49/0xbe 00000000aa04fd5b: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ RIP: 0033:0x7f4f22f28537 Code: Bad RIP value. 000000009fc3cea6: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ RSP: 002b:00007ffd05e7cee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 000000007e339802: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f4f22f28537 00000000f3da38b7: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ RDX: 00007ffd05e7cfbc RSI: 000000000000000a RDI: 00007ffd05e7cfb0 XFS (loop5): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x4 len 1 error 117 RBP: 00007ffd05e7cfb0 R08: 00000000ffffffff R09: 00007ffd05e7cd80 XFS (loop5): page discard on page 00000000b7a4c1cb, inode 0x29, offset 5566464. R10: 000055555727c903 R11: 0000000000000246 R12: 00007f4f22f81b24 R13: 00007ffd05e7e070 R14: 000055555727c810 R15: 00007ffd05e7e0b0 XFS (loop5): Metadata corruption detected at xfs_allocbt_verify+0x327/0x4a0 fs/xfs/libxfs/xfs_alloc_btree.c:329, xfs_allocbt block 0x4 Showing all locks held in the system: no locks held by kworker/u4:2/36. XFS (loop5): Unmount and run xfs_repair 1 lock held by khungtaskd/1570: XFS (loop5): First 128 bytes of corrupted metadata buffer: #0: 000000009a7a24ca (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 000000005c81e362: 07 42 54 42 00 00 00 01 ff ff ff ff ff ff ff ff .BTB............ 1 lock held by in:imklog/7774: #0: 00000000b1e0af3c (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 0000000025c28b34: 00 00 00 42 00 00 7f be 00 00 00 42 00 00 7f be ...B.......B.... 2 locks held by agetty/7775: #0: 000000006b523eaf (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 000000006b7960d9: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ #1: 000000008ab762fc (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1950 drivers/tty/n_tty.c:2154 0000000078ef9f9f: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 2 locks held by syz-executor.5/8141: 00000000c5f50082: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ #0: 0000000016f21bf0 (&type->s_umount_key#54){++++}, at: deactivate_super+0x16c/0x1a0 fs/super.c:359 00000000535519b4: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ #1: 000000001a4c45ae (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 000000001a4c45ae (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 0000000090df1096: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 4 locks held by kworker/u4:7/9488: #0: 000000006cc1a9eb ((wq_completion)"writeback"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 00000000a30f639b: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ #1: 0000000045875999 ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 XFS (loop5): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x4 len 1 error 117 #2: 00000000ce7fb25c (sb_internal#3){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] #2: 00000000ce7fb25c (sb_internal#3){.+.+}, at: xfs_trans_alloc+0x4fc/0x700 fs/xfs/xfs_trans.c:271 XFS (loop5): page discard on page 000000001d5c2d0d, inode 0x29, offset 5570560. #3: 000000007e5d5bd2 (console_owner){-.-.}, at: log_next kernel/printk/printk.c:511 [inline] #3: 000000007e5d5bd2 (console_owner){-.-.}, at: console_unlock+0x3a9/0x1110 kernel/printk/printk.c:2447 XFS (loop5): Metadata corruption detected at xfs_allocbt_verify+0x327/0x4a0 fs/xfs/libxfs/xfs_alloc_btree.c:329, xfs_allocbt block 0x4 5 locks held by kworker/0:0/8578: XFS (loop5): Unmount and run xfs_repair XFS (loop5): First 128 bytes of corrupted metadata buffer: 0000000088575575: 07 42 54 42 00 00 00 01 ff ff ff ff ff ff ff ff .BTB............ ============================================= 00000000a0d51b70: 00 00 00 42 00 00 7f be 00 00 00 42 00 00 7f be ...B.......B.... NMI backtrace for cpu 1 00000000d5cff360: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ CPU: 1 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 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 8578 Comm: kworker/0:0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: xfs-buf/loop5 xfs_buf_ioend_work RIP: 0010:rcu_lockdep_current_cpu_online kernel/rcu/tree.c:1076 [inline] RIP: 0010:rcu_lockdep_current_cpu_online+0x2d/0x1b0 kernel/rcu/tree.c:1068 Code: d9 a0 b0 7e a9 00 00 10 00 75 0a 8b 05 b0 a1 d5 09 85 c0 75 06 b8 01 00 00 00 c3 41 55 bf 01 00 00 00 41 54 55 53 48 83 ec 08 7e 2f f0 ff 48 8b 05 f7 4d a7 08 4c 8d a0 f8 f8 ff ff 48 3d a0 RSP: 0018:ffff8880ba007568 EFLAGS: 00000092 RAX: 0000000000000001 RBX: ffff888043a14080 RCX: ffffffff81518c83 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed101740455a R10: ffff8880ba022ad3 R11: 0000000000000000 R12: ffff8880ba01e728 R13: ffff8880b59cb280 R14: 000000000001e728 R15: ffff8880b503c600 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f844935d000 CR3: 00000000a1718000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: rcu_read_lock_held+0xc3/0x110 kernel/rcu/update.c:285 select_idle_cpu kernel/sched/fair.c:6164 [inline] select_idle_sibling kernel/sched/fair.c:6245 [inline] select_idle_sibling+0x89f/0xae0 kernel/sched/fair.c:6208 select_task_rq_fair+0x6df/0x2750 kernel/sched/fair.c:6479 select_task_rq kernel/sched/core.c:1532 [inline] try_to_wake_up+0x4cd/0x1050 kernel/sched/core.c:2037 wake_up_worker kernel/workqueue.c:839 [inline] insert_work+0x28b/0x360 kernel/workqueue.c:1312 __queue_work+0x5cd/0x1100 kernel/workqueue.c:1464 queue_work_on+0x17e/0x1f0 kernel/workqueue.c:1489 queue_work include/linux/workqueue.h:512 [inline] ieee80211_queue_work net/mac80211/util.c:753 [inline] ieee80211_queue_work+0x129/0x160 net/mac80211/util.c:746 ieee80211_rx_h_mgmt net/mac80211/rx.c:3532 [inline] ieee80211_rx_handlers+0x6619/0x9730 net/mac80211/rx.c:3696 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3726 [inline] ieee80211_prepare_and_rx_handle+0x23fa/0x6790 net/mac80211/rx.c:4423 __ieee80211_rx_handle_packet net/mac80211/rx.c:4483 [inline] ieee80211_rx_napi+0x108d/0x2470 net/mac80211/rx.c:4672 ieee80211_rx include/net/mac80211.h:4109 [inline] ieee80211_tasklet_handler+0x101/0x160 net/mac80211/main.c:229 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1724 [inline] RIP: 0010:vprintk_emit+0x668/0x740 kernel/printk/printk.c:1964 Code: 48 b8 00 00 00 00 00 fc ff df 41 80 7c 05 00 00 0f 85 d9 00 00 00 48 83 3d 9c a2 a3 08 00 74 37 e8 7d a5 14 00 48 89 df 57 9d <0f> 1f 44 00 00 e9 82 fe ff ff e8 69 a5 14 00 0f 0b e8 62 a5 14 00 RSP: 0018:ffff8880405af990 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888043a14080 RBX: 0000000000000293 RCX: 1ffff1100874292a RDX: 0000000000000000 RSI: ffffffff814ddff3 RDI: 0000000000000293 RBP: ffff8880405af9d0 R08: ffffffff8cd287f8 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000053 R13: 1ffffffff13e3051 R14: 0000000000000200 R15: 0000000000000001 vprintk_func+0x79/0x180 kernel/printk/printk_safe.c:405 printk+0xba/0xed kernel/printk/printk.c:2040 print_hex_dump.cold+0x23/0x7a lib/hexdump.c:263 xfs_hex_dump+0x36/0x40 fs/xfs/xfs_message.c:110 xfs_buf_verifier_error+0x22a/0x310 fs/xfs/xfs_error.c:370 xfs_allocbt_read_verify+0x118/0x380 fs/xfs/libxfs/xfs_alloc_btree.c:357 xfs_buf_ioend+0x1da/0x6e0 fs/xfs/xfs_buf.c:1202 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