0000000041100241: 58 46 53 42 00 00 02 00 00 00 00 00 00 01 00 00 XFSB............ 00000000e35bb0aa: 5e 62 73 b8 21 67 42 bb 91 1b 41 8a a1 4a 12 61 ^bs.!gB...A..J.a 0000000042e9dadb: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ INFO: task syz-executor.4:15575 blocked for more than 140 seconds. 000000007c8e23b9: 5e 62 73 b8 21 67 42 bb 91 1b 41 8a a1 4a 12 61 ^bs.!gB...A..J.a 00000000cd544480: 00 00 00 00 00 00 ff 80 00 00 00 00 00 00 00 20 ............... Not tainted 4.19.211-syzkaller #0 XFS (loop3): SB sanity check failed 0000000061df2849: 00 00 00 00 00 00 ff 80 00 00 00 00 00 00 00 20 ............... XFS (loop3): Metadata corruption detected at xfs_sb_read_verify+0x3e7/0x500 fs/xfs/libxfs/xfs_sb.c:685, xfs_sb block 0xffffffffffffffff "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 00000000ad630f8a: 00 00 00 00 00 00 00 21 00 00 00 00 00 00 00 22 .......!......." 00000000d30c3991: 00 00 00 00 00 00 00 21 00 00 00 00 00 00 00 22 .......!......." syz-executor.4 D26136 15575 8348 0x00000004 00000000de6c4ea4: 00 00 00 04 00 00 80 00 00 00 00 02 00 00 00 00 ................ Call Trace: 00000000df001220: 00 00 00 08 00 00 00 10 00 00 00 02 00 00 00 00 ................ XFS (loop3): Unmount and run xfs_repair 0000000092455462: 00 00 0b 40 b4 b4 02 00 01 00 00 02 00 00 00 00 ...@............ context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 XFS (loop3): First 128 bytes of corrupted metadata buffer: 00000000d4094ee3: 00 00 0b 40 b4 b4 02 00 01 00 00 02 00 00 00 00 ...@............ 000000006bed7cf5: 00 00 00 00 00 00 00 00 09 09 08 01 0f 00 00 19 ................ 00000000d35c151e: 58 46 53 42 00 00 02 00 00 00 00 00 85 00 00 00 XFSB............ 00000000b2f8cd46: 00 00 00 00 00 00 00 00 09 09 08 01 0f 00 00 19 ................ schedule+0x8d/0x1b0 kernel/sched/core.c:3561 00000000752253dd: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ XFS (loop0): SB validate failed with error -117. xlog_grant_head_wait+0x13b/0xcd0 fs/xfs/xfs_log.c:263 xlog_grant_head_check+0x3c8/0x420 fs/xfs/xfs_log.c:325 0000000002f1236a: 5e 62 73 b8 21 67 42 bb 91 1b 41 8a a1 4a 12 61 ^bs.!gB...A..J.a XFS (loop5): SB validate failed with error -117. xfs_log_reserve+0x347/0xa70 fs/xfs/xfs_log.c:454 000000002acc8883: 00 00 00 00 00 00 ff 80 00 00 00 00 7f ff ff ff ................ xfs_trans_reserve+0x63a/0x9c0 fs/xfs/xfs_trans.c:197 xfs_trans_alloc+0x2f7/0x700 fs/xfs/xfs_trans.c:289 xfs_qm_qino_alloc+0x19a/0x950 fs/xfs/xfs_qm.c:777 0000000072024827: 00 00 00 00 00 00 00 21 00 00 00 00 00 00 00 22 .......!......." 0000000037c4b391: 00 00 00 08 00 00 80 00 00 00 00 02 00 00 00 00 ................ xfs_qm_init_quotainos+0x5cd/0x730 fs/xfs/xfs_qm.c:1556 000000005eca7d2d: 00 00 0b 40 b4 b4 02 00 01 00 00 02 00 00 00 00 ...@............ xfs_qm_init_quotainfo+0x146/0xd70 fs/xfs/xfs_qm.c:659 000000001fc18480: 00 00 00 00 00 00 00 00 09 09 08 01 0f 00 00 19 ................ XFS (loop2): SB sanity check failed XFS (loop2): Metadata corruption detected at xfs_sb_read_verify+0x3e7/0x500 fs/xfs/libxfs/xfs_sb.c:685, xfs_sb block 0xffffffffffffffff XFS (loop3): SB validate failed with error -117. XFS (loop2): Unmount and run xfs_repair XFS (loop2): First 128 bytes of corrupted metadata buffer: 00000000606b657b: 58 46 53 42 00 00 02 00 00 00 00 00 89 00 00 00 XFSB............ 0000000089f8d886: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ xfs_qm_mount_quotas+0x55/0x680 fs/xfs/xfs_qm.c:1432 xfs_mountfs+0x17e2/0x1bf0 fs/xfs/xfs_mount.c:1001 00000000d8343ea7: 5e 62 73 b8 21 67 42 bb 91 1b 41 8a a1 4a 12 61 ^bs.!gB...A..J.a 00000000aa056265: 00 00 00 00 00 00 ff 80 00 00 00 00 00 00 00 60 ...............` 00000000915e02c0: 00 00 00 00 00 00 00 21 00 00 00 00 00 00 00 22 .......!......." 000000000d3dca71: 00 00 00 08 00 00 80 00 00 00 00 02 00 00 00 00 ................ 0000000049eab5c0: 00 00 0b 40 b4 b4 02 00 01 00 00 02 00 00 00 00 ...@............ 000000001e0d6d3f: 00 00 00 00 00 00 00 00 09 09 08 01 0f 00 00 19 ................ XFS (loop2): SB validate failed with error -117. xfs_fs_fill_super+0xd0e/0x1540 fs/xfs/xfs_super.c:1720 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8abf48c5fa Code: Bad RIP value. RSP: 002b:00007f8abd9fcf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000000baee RCX: 00007f8abf48c5fa RDX: 0000000020000000 RSI: 000000002000bb40 RDI: 00007f8abd9fcfe0 RBP: 00007f8abd9fd020 R08: 00007f8abd9fd020 R09: 0000000002000000 R10: 0000000002000000 R11: 0000000000000202 R12: 0000000020000000 R13: 000000002000bb40 R14: 00007f8abd9fcfe0 R15: 0000000020000040 Showing all locks held in the system: 1 lock held by khungtaskd/1570: #0: 00000000f02377aa (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7822: #0: 0000000092244064 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 2 locks held by syz-executor.4/15575: #0: 000000005188d506 (&type->s_umount_key#50/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 000000005188d506 (&type->s_umount_key#50/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 #1: 0000000009cc7290 (sb_internal#2){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] #1: 0000000009cc7290 (sb_internal#2){.+.+}, at: xfs_trans_alloc+0x4fc/0x700 fs/xfs/xfs_trans.c:271 2 locks held by syz-executor.1/19360: ============================================= 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 01/12/2023 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 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 19360 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:23 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x50 kernel/kcov.c:101 Code: ff 4c 89 ef e8 04 dd 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 <65> 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b 8b 90 60 13 00 00 83 RSP: 0018:ffff8880b25a7890 EFLAGS: 00000013 RAX: ffff8880b45d41c0 RBX: ffff88813be824c0 RCX: ffffffff8181825d RDX: 00fff0000004003c RSI: ffffffff8181826c RDI: 0000000000000007 RBP: ffffea0000d08b80 R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000007 R11: 0000000000000000 R12: ffffea0000d08b88 R13: 0000000000000000 R14: 0000000000000000 R15: 00fff0000004003c FS: 00007f6725429700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c02975d000 CR3: 00000000ab432000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __read_once_size include/linux/compiler.h:263 [inline] compound_head include/linux/page-flags.h:142 [inline] PageActive include/linux/page-flags.h:281 [inline] __pagevec_lru_add_fn+0x99c/0x13c0 mm/swap.c:905 pagevec_lru_move_fn+0x10d/0x270 mm/swap.c:210 __pagevec_lru_add mm/swap.c:927 [inline] __lru_cache_add+0x1c4/0x2c0 mm/swap.c:405 shmem_getpage_gfp+0x210e/0x37f0 mm/shmem.c:1847 shmem_getpage mm/shmem.c:132 [inline] shmem_write_begin+0xff/0x1e0 mm/shmem.c:2446 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x51b/0x770 fs/read_write.c:487 vfs_write+0x1f3/0x540 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f6726e68e4f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 RSP: 002b:00007f6725428f10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6726e68e4f RDX: 0000000002000000 RSI: 00007f671d009000 RDI: 0000000000000003 RBP: 00007f671d009000 R08: 0000000000000000 R09: 000000000000bae9 R10: 0000000002000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007f6725428fdc R14: 00007f6725428fe0 R15: 000000002000bbc2