[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.16' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.041986] F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0) [ 36.049472] F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock [ 36.059984] F2FS-fs (loop0): invalid crc value [ 36.066766] attempt to access beyond end of device [ 36.071691] loop0: rw=12288, want=12296, limit=8287 [ 36.077387] attempt to access beyond end of device [ 36.082312] loop0: rw=12288, want=12296, limit=8287 [ 36.088024] attempt to access beyond end of device [ 36.092969] loop0: rw=12288, want=12296, limit=8287 [ 36.099014] attempt to access beyond end of device [ 36.103935] loop0: rw=12288, want=12296, limit=8287 [ 36.109586] attempt to access beyond end of device [ 36.114508] loop0: rw=12288, want=12296, limit=8287 [ 36.120187] attempt to access beyond end of device [ 36.125529] loop0: rw=12288, want=12296, limit=8287 [ 36.130549] attempt to access beyond end of device [ 36.136120] loop0: rw=12288, want=12296, limit=8287 [ 36.141145] attempt to access beyond end of device [ 36.146716] loop0: rw=12288, want=12296, limit=8287 [ 36.151735] attempt to access beyond end of device [ 36.157336] loop0: rw=12288, want=12296, limit=8287 [ 36.162356] attempt to access beyond end of device [ 36.167887] loop0: rw=12288, want=12296, limit=8287 [ 36.173241] ------------[ cut here ]------------ [ 36.178105] kernel BUG at fs/f2fs/checkpoint.c:127! [ 36.184775] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 36.190149] CPU: 0 PID: 8089 Comm: syz-executor259 Not tainted 4.19.211-syzkaller #0 [ 36.198006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 36.207352] RIP: 0010:f2fs_get_meta_page_nofail+0x12d/0x150 [ 36.213045] Code: e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 75 23 83 8b 84 00 00 00 08 4c 89 e6 4c 89 ef e8 3b d2 03 05 48 89 ef e8 f3 a7 02 00 <0f> 0b e8 1c e4 82 fe eb 80 be 04 00 00 00 e8 00 e8 82 fe eb d1 66 [ 36.231943] RSP: 0018:ffff8880b2437880 EFLAGS: 00010293 [ 36.237286] RAX: ffff88809fd9c100 RBX: ffff8880b3068d40 RCX: ffffffff831805c1 [ 36.244532] RDX: 0000000000000000 RSI: ffffffff83157e3d RDI: 0000000000000005 [ 36.251780] RBP: ffff88808fb45ec0 R08: ffffffff8cd33438 R09: 0000000000000001 [ 36.259043] R10: 0000000000000005 R11: 0000000000074071 R12: 0000000000000286 [ 36.266289] R13: ffff88808fb463b8 R14: 0000000000000080 R15: dffffc0000000000 [ 36.273645] FS: 000055555586d300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 36.281852] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.287713] CR2: 00007fc05e7f7028 CR3: 00000000b27ee000 CR4: 00000000003406f0 [ 36.294963] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.302211] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.309460] Call Trace: [ 36.312036] f2fs_build_segment_manager+0x5e97/0xad90 [ 36.317210] ? f2fs_flush_sit_entries+0x33a0/0x33a0 [ 36.322207] ? map_id_range_down+0x1c4/0x340 [ 36.326598] ? __lockdep_init_map+0x100/0x5a0 [ 36.331069] ? __lockdep_init_map+0x100/0x5a0 [ 36.335542] f2fs_fill_super+0x31d9/0x7050 [ 36.339763] ? snprintf+0xbb/0xf0 [ 36.343196] ? f2fs_commit_super+0x400/0x400 [ 36.347584] ? wait_for_completion_io+0x10/0x10 [ 36.352230] ? set_blocksize+0x163/0x3f0 [ 36.356269] mount_bdev+0x2fc/0x3b0 [ 36.359874] ? f2fs_commit_super+0x400/0x400 [ 36.364259] mount_fs+0xa3/0x310 [ 36.367607] vfs_kern_mount.part.0+0x68/0x470 [ 36.372080] do_mount+0x115c/0x2f50 [ 36.375684] ? cmp_ex_sort+0xc0/0xc0 [ 36.379377] ? __do_page_fault+0x180/0xd60 [ 36.383593] ? copy_mount_string+0x40/0x40 [ 36.387808] ? copy_mount_options+0x1cd/0x380 [ 36.392282] ? memset+0x20/0x40 [ 36.395540] ? copy_mount_options+0x26f/0x380 [ 36.400013] ksys_mount+0xcf/0x130 [ 36.403532] __x64_sys_mount+0xba/0x150 [ 36.407486] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.412060] do_syscall_64+0xf9/0x620 [ 36.415842] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.421020] RIP: 0033:0x7fa74f2244fa [ 36.424717] Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 36.443596] RSP: 002b:00007ffed7168298 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 36.451281] RAX: ffffffffffffffda RBX: 00007ffed71682f0 RCX: 00007fa74f2244fa [ 36.458526] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffed71682b0 [ 36.465772] RBP: 00007ffed71682b0 R08: 00007ffed71682f0 R09: 0000000000000000 [ 36.473018] R10: 0000000000000000 R11: 0000000000000286 R12: 00000000200005c0 [ 36.480263] R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000010 [ 36.487512] Modules linked in: [ 36.491573] ---[ end trace ee1ef371482fb3c5 ]--- [ 36.496529] RIP: 0010:f2fs_get_meta_page_nofail+0x12d/0x150 [ 36.502239] Code: e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 75 23 83 8b 84 00 00 00 08 4c 89 e6 4c 89 ef e8 3b d2 03 05 48 89 ef e8 f3 a7 02 00 <0f> 0b e8 1c e4 82 fe eb 80 be 04 00 00 00 e8 00 e8 82 fe eb d1 66 [ 36.521342] RSP: 0018:ffff8880b2437880 EFLAGS: 00010293 [ 36.526967] RAX: ffff88809fd9c100 RBX: ffff8880b3068d40 RCX: ffffffff831805c1 [ 36.534229] RDX: 0000000000000000 RSI: ffffffff83157e3d RDI: 0000000000000005 [ 36.541699] RBP: ffff88808fb45ec0 R08: ffffffff8cd33438 R09: 0000000000000001 [ 36.549130] R10: 0000000000000005 R11: 0000000000074071 R12: 0000000000000286 [ 36.556557] R13: ffff88808fb463b8 R14: 0000000000000080 R15: dffffc0000000000 [ 36.563818] FS: 000055555586d300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 36.572225] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.578243] CR2: 000055d9fec83740 CR3: 00000000b27ee000 CR4: 00000000003406e0 [ 36.585696] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.592956] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.600400] Kernel panic - not syncing: Fatal exception [ 36.605917] Kernel Offset: disabled [ 36.609548] Rebooting in 86400 seconds..