[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ 52.027122][ T8373] sshd (8373) used greatest stack depth: 22712 bytes left [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.213' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 61.052881][ T8497] F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0) [ 61.061179][ T8497] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 61.072463][ T8497] F2FS-fs (loop0): invalid crc_offset: 0 [ 61.085355][ T8497] F2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=1, run fsck to fix. [ 61.094485][ T8497] F2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=2, run fsck to fix. [ 61.120752][ T8497] F2FS-fs (loop0): access invalid blkaddr:1030372864 [ 61.127620][ T8497] ------------[ cut here ]------------ [ 61.134076][ T8497] WARNING: CPU: 0 PID: 8497 at fs/f2fs/checkpoint.c:189 f2fs_is_valid_blkaddr+0xdb2/0xf80 [ 61.144454][ T8497] Modules linked in: [ 61.148349][ T8497] CPU: 0 PID: 8497 Comm: syz-executor074 Not tainted 5.10.0-rc1-next-20201030-syzkaller #0 [ 61.159024][ T8497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.169673][ T8497] RIP: 0010:f2fs_is_valid_blkaddr+0xdb2/0xf80 [ 61.176256][ T8497] Code: 89 e2 48 89 df 48 c7 c6 00 8a 91 89 e8 c0 2c 5e 05 48 8d bb b8 00 00 00 be 08 00 00 00 e8 76 48 5a fe f0 80 8b b8 00 00 00 04 <0f> 0b e9 af f7 ff ff e8 c2 6a 5a fe e9 a5 fa ff ff e8 c8 6a 5a fe [ 61.196465][ T8497] RSP: 0018:ffffc9000162f718 EFLAGS: 00010206 [ 61.203171][ T8497] RAX: 0000000000000001 RBX: ffff888024634000 RCX: ffffffff835769ea [ 61.211639][ T8497] RDX: ffffed10048c6818 RSI: 0000000000000008 RDI: ffff8880246340b8 [ 61.219603][ T8497] RBP: 0000000000000007 R08: 0000000000000001 R09: ffff8880246340bf [ 61.228385][ T8497] R10: ffffed10048c6817 R11: 0000000000000000 R12: 000000003d6a3e00 [ 61.236973][ T8497] R13: ffff88801b471400 R14: 0000000000004000 R15: 0000000000000200 [ 61.245421][ T8497] FS: 0000000000d8f880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 61.254875][ T8497] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.261936][ T8497] CR2: 00007f7c4d9fb000 CR3: 0000000024380000 CR4: 00000000001506f0 [ 61.269901][ T8497] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.278542][ T8497] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.286963][ T8497] Call Trace: [ 61.290252][ T8497] f2fs_get_node_info+0x4b4/0xbc0 [ 61.295908][ T8497] ? f2fs_try_to_free_nats+0x330/0x330 [ 61.301785][ T8497] ? file_write_and_wait_range+0x200/0x200 [ 61.307587][ T8497] read_node_page+0x4a6/0x9b0 [ 61.312888][ T8497] ? truncate_node+0x870/0x870 [ 61.317644][ T8497] ? lru_cache_add+0x5ca/0xb40 [ 61.323084][ T8497] ? pagecache_get_page+0x23c/0x1460 [ 61.328366][ T8497] __get_node_page.part.0+0xa2/0xac0 [ 61.334450][ T8497] f2fs_get_node_page+0x109/0x180 [ 61.339485][ T8497] f2fs_iget+0x233/0x4d70 [ 61.344511][ T8497] ? __mutex_unlock_slowpath+0xe2/0x610 [ 61.350069][ T8497] ? wait_for_completion_io+0x260/0x260 [ 61.356257][ T8497] ? kasan_unpoison_shadow+0x33/0x40 [ 61.361873][ T8497] ? __kasan_kmalloc.constprop.0+0xc2/0xd0 [ 61.367695][ T8497] f2fs_fill_super+0x3e48/0x7410 [ 61.372831][ T8497] ? vsprintf+0x30/0x30 [ 61.376998][ T8497] ? f2fs_commit_super+0x840/0x840 [ 61.382185][ T8497] ? wait_for_completion_io+0x260/0x260 [ 61.387728][ T8497] ? set_blocksize+0x1c1/0x400 [ 61.392577][ T8497] mount_bdev+0x32e/0x3f0 [ 61.396910][ T8497] ? f2fs_commit_super+0x840/0x840 [ 61.402209][ T8497] ? __bpf_trace_f2fs_fiemap+0x1b0/0x1b0 [ 61.407841][ T8497] legacy_get_tree+0x105/0x220 [ 61.412717][ T8497] vfs_get_tree+0x89/0x2f0 [ 61.417144][ T8497] path_mount+0x12ae/0x1e70 [ 61.421797][ T8497] ? strncpy_from_user+0x29e/0x3a0 [ 61.426918][ T8497] ? finish_automount+0xac0/0xac0 [ 61.433084][ T8497] ? getname_flags.part.0+0x1dd/0x4f0 [ 61.438465][ T8497] __x64_sys_mount+0x27f/0x300 [ 61.443311][ T8497] ? copy_mnt_ns+0xae0/0xae0 [ 61.447903][ T8497] ? syscall_enter_from_user_mode+0x1d/0x50 [ 61.453884][ T8497] do_syscall_64+0x2d/0x70 [ 61.458299][ T8497] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.464227][ T8497] RIP: 0033:0x44708a [ 61.469169][ T8497] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 61.488859][ T8497] RSP: 002b:00007ffe7a60b308 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 61.497334][ T8497] RAX: ffffffffffffffda RBX: 00007ffe7a60b360 RCX: 000000000044708a [ 61.505399][ T8497] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe7a60b320 [ 61.513448][ T8497] RBP: 00007ffe7a60b320 R08: 00007ffe7a60b360 R09: 00007ffe00000015 [ 61.521499][ T8497] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000009 [ 61.529464][ T8497] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 61.537557][ T8497] Kernel panic - not syncing: panic_on_warn set ... [ 61.544283][ T8497] CPU: 1 PID: 8497 Comm: syz-executor074 Not tainted 5.10.0-rc1-next-20201030-syzkaller #0 [ 61.554237][ T8497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.564272][ T8497] Call Trace: [ 61.567546][ T8497] dump_stack+0x107/0x163 [ 61.571884][ T8497] panic+0x306/0x73d [ 61.575784][ T8497] ? __warn_printk+0xf3/0xf3 [ 61.580396][ T8497] ? __warn.cold+0x1d/0xbb [ 61.584809][ T8497] ? __warn.cold+0x14/0xbb [ 61.589218][ T8497] ? f2fs_is_valid_blkaddr+0xdb2/0xf80 [ 61.594667][ T8497] __warn.cold+0x38/0xbb [ 61.598896][ T8497] ? f2fs_is_valid_blkaddr+0xdb2/0xf80 [ 61.604437][ T8497] report_bug+0x1bd/0x210 [ 61.608763][ T8497] handle_bug+0x3c/0x60 [ 61.612902][ T8497] exc_invalid_op+0x14/0x40 [ 61.617421][ T8497] asm_exc_invalid_op+0x12/0x20 [ 61.622262][ T8497] RIP: 0010:f2fs_is_valid_blkaddr+0xdb2/0xf80 [ 61.628312][ T8497] Code: 89 e2 48 89 df 48 c7 c6 00 8a 91 89 e8 c0 2c 5e 05 48 8d bb b8 00 00 00 be 08 00 00 00 e8 76 48 5a fe f0 80 8b b8 00 00 00 04 <0f> 0b e9 af f7 ff ff e8 c2 6a 5a fe e9 a5 fa ff ff e8 c8 6a 5a fe [ 61.647999][ T8497] RSP: 0018:ffffc9000162f718 EFLAGS: 00010206 [ 61.654046][ T8497] RAX: 0000000000000001 RBX: ffff888024634000 RCX: ffffffff835769ea [ 61.662000][ T8497] RDX: ffffed10048c6818 RSI: 0000000000000008 RDI: ffff8880246340b8 [ 61.669948][ T8497] RBP: 0000000000000007 R08: 0000000000000001 R09: ffff8880246340bf [ 61.677897][ T8497] R10: ffffed10048c6817 R11: 0000000000000000 R12: 000000003d6a3e00 [ 61.685849][ T8497] R13: ffff88801b471400 R14: 0000000000004000 R15: 0000000000000200 [ 61.693813][ T8497] ? f2fs_is_valid_blkaddr+0xdaa/0xf80 [ 61.699255][ T8497] ? f2fs_is_valid_blkaddr+0xdaa/0xf80 [ 61.704695][ T8497] f2fs_get_node_info+0x4b4/0xbc0 [ 61.709705][ T8497] ? f2fs_try_to_free_nats+0x330/0x330 [ 61.715158][ T8497] ? file_write_and_wait_range+0x200/0x200 [ 61.720946][ T8497] read_node_page+0x4a6/0x9b0 [ 61.725603][ T8497] ? truncate_node+0x870/0x870 [ 61.730342][ T8497] ? lru_cache_add+0x5ca/0xb40 [ 61.735095][ T8497] ? pagecache_get_page+0x23c/0x1460 [ 61.740373][ T8497] __get_node_page.part.0+0xa2/0xac0 [ 61.745641][ T8497] f2fs_get_node_page+0x109/0x180 [ 61.750646][ T8497] f2fs_iget+0x233/0x4d70 [ 61.754955][ T8497] ? __mutex_unlock_slowpath+0xe2/0x610 [ 61.760482][ T8497] ? wait_for_completion_io+0x260/0x260 [ 61.766021][ T8497] ? kasan_unpoison_shadow+0x33/0x40 [ 61.771282][ T8497] ? __kasan_kmalloc.constprop.0+0xc2/0xd0 [ 61.777076][ T8497] f2fs_fill_super+0x3e48/0x7410 [ 61.782006][ T8497] ? vsprintf+0x30/0x30 [ 61.786231][ T8497] ? f2fs_commit_super+0x840/0x840 [ 61.791323][ T8497] ? wait_for_completion_io+0x260/0x260 [ 61.796860][ T8497] ? set_blocksize+0x1c1/0x400 [ 61.801609][ T8497] mount_bdev+0x32e/0x3f0 [ 61.805918][ T8497] ? f2fs_commit_super+0x840/0x840 [ 61.811025][ T8497] ? __bpf_trace_f2fs_fiemap+0x1b0/0x1b0 [ 61.816636][ T8497] legacy_get_tree+0x105/0x220 [ 61.821378][ T8497] vfs_get_tree+0x89/0x2f0 [ 61.825772][ T8497] path_mount+0x12ae/0x1e70 [ 61.830262][ T8497] ? strncpy_from_user+0x29e/0x3a0 [ 61.835360][ T8497] ? finish_automount+0xac0/0xac0 [ 61.840385][ T8497] ? getname_flags.part.0+0x1dd/0x4f0 [ 61.845738][ T8497] __x64_sys_mount+0x27f/0x300 [ 61.850484][ T8497] ? copy_mnt_ns+0xae0/0xae0 [ 61.855053][ T8497] ? syscall_enter_from_user_mode+0x1d/0x50 [ 61.860928][ T8497] do_syscall_64+0x2d/0x70 [ 61.865325][ T8497] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.871209][ T8497] RIP: 0033:0x44708a [ 61.875083][ T8497] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 61.894672][ T8497] RSP: 002b:00007ffe7a60b308 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 61.903079][ T8497] RAX: ffffffffffffffda RBX: 00007ffe7a60b360 RCX: 000000000044708a [ 61.911030][ T8497] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe7a60b320 [ 61.918980][ T8497] RBP: 00007ffe7a60b320 R08: 00007ffe7a60b360 R09: 00007ffe00000015 [ 61.926946][ T8497] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000009 [ 61.934897][ T8497] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 61.943746][ T8497] Kernel Offset: disabled [ 61.948154][ T8497] Rebooting in 86400 seconds..