000000001a975445: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ XFS (loop4): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x1 len 1 error 117 XFS (loop4): Quotacheck: Done. XFS (loop4): Unmounting Filesystem INFO: task syz-executor.5:20880 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 D26136 20880 25419 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 xlog_grant_head_wait+0x13b/0xcd0 fs/xfs/xfs_log.c:263 xlog_grant_head_check+0x3c8/0x420 fs/xfs/xfs_log.c:325 xfs_log_reserve+0x347/0xa70 fs/xfs/xfs_log.c:454 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 xfs_qm_init_quotainos+0x563/0x730 fs/xfs/xfs_qm.c:1548 xfs_qm_init_quotainfo+0x146/0xd70 fs/xfs/xfs_qm.c:659 xfs_qm_mount_quotas+0x55/0x680 fs/xfs/xfs_qm.c:1432 xfs_mountfs+0x17e2/0x1bf0 fs/xfs/xfs_mount.c:1001 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: 0033:0x7ff4695885da Code: Bad RIP value. RSP: 002b:00007ff467af8f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000000c057 RCX: 00007ff4695885da RDX: 000000002000c040 RSI: 000000002000c080 RDI: 00007ff467af8fe0 RBP: 00007ff467af9020 R08: 00007ff467af9020 R09: 000000000000005e R10: 000000000000005e R11: 0000000000000202 R12: 000000002000c040 R13: 000000002000c080 R14: 00007ff467af8fe0 R15: 00000000200000c0 Showing all locks held in the system: 1 lock held by khungtaskd/1570: #0: 000000005f770120 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 2 locks held by agetty/18820: #0: 00000000cf153e95 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000005254b37a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1950 drivers/tty/n_tty.c:2154 2 locks held by syz-executor.5/20880: #0: 000000006565522b (&type->s_umount_key#52/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 000000006565522b (&type->s_umount_key#52/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 #1: 00000000777b1239 (sb_internal#4){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] #1: 00000000777b1239 (sb_internal#4){.+.+}, at: xfs_trans_alloc+0x4fc/0x700 fs/xfs/xfs_trans.c:271 2 locks held by syz-executor.2/24020: #0: 000000008c397b3f (&type->s_umount_key#52/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 000000008c397b3f (&type->s_umount_key#52/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 #1: 00000000fcf0453d (sb_internal#4){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] #1: 00000000fcf0453d (sb_internal#4){.+.+}, at: xfs_trans_alloc+0x4fc/0x700 fs/xfs/xfs_trans.c:271 ============================================= NMI backtrace for cpu 1 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: 4688 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__bpf_prog_run32+0x9c/0xd0 kernel/bpf/core.c:1450 Code: 40 4c 89 64 24 68 48 8d 54 24 20 48 89 84 24 b0 00 00 00 48 8d 7c 24 60 e8 11 93 ff ff c7 03 00 00 00 00 c7 43 08 00 00 00 00 43 18 00 00 00 00 48 8b 8c 24 f8 00 00 00 65 48 2b 0c 25 28 00 RSP: 0018:ffff8880a125faa0 EFLAGS: 00000282 RAX: 000000007fff0000 RBX: ffffed101424bf54 RCX: ffffffff816c60dc RDX: 1ffff1101424bf60 RSI: ffffffff816c43c1 RDI: ffffffff886fb908 RBP: ffffc90001a97038 R08: 0000000000000000 R09: 00000000c000003e R10: 0000000000000006 R11: 0000000000000000 R12: ffff8880a125fe70 R13: 000000007fff0000 R14: 000000007fff0000 R15: 000000007fff0000 FS: 00007f27d26878c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f27cff2f000 CR3: 00000000a20b4000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: seccomp_run_filters+0x124/0x590 kernel/seccomp.c:211 __seccomp_filter+0x93/0xca0 kernel/seccomp.c:667 __secure_computing+0xfc/0x360 kernel/seccomp.c:796 syscall_trace_enter+0x563/0xd60 arch/x86/entry/common.c:121 do_syscall_64+0x486/0x620 arch/x86/entry/common.c:283 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f27d191ff17 Code: ff ff ff 48 8b 4d a0 0f b7 51 fe 48 8b 4d a8 66 89 54 08 fe e9 1a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 0f 1f 84 00 00 RSP: 002b:00007fffe76573d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000027 RAX: ffffffffffffffda RBX: 0000000000001250 RCX: 00007f27d191ff17 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000559da0c4a1e0 RBP: 0000559da0c4a1e0 R08: 00007fffe76b2000 R09: 000002e28a6d82eb R10: 00157019f97d5c25 R11: 0000000000000202 R12: ffffffffffffffff R13: 00007fffe76574a8 R14: 0000559d9f59e958 R15: 0005f08090e152e8