[ 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 '10.128.0.67' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 41.243339] F2FS-fs (loop0): Invalid blocksize (65536), supports only 4KB [ 41.243339] [ 41.252037] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 41.262204] F2FS-fs (loop0): invalid crc value [ 41.276177] F2FS-fs (loop0): Found nat_bits in checkpoint [ 41.299830] F2FS-fs (loop0): Mounted with checkpoint version = 3e17dab1 [ 41.318908] F2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=1, run fsck to fix. [ 41.327253] F2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=2, run fsck to fix. [ 41.361378] ------------[ cut here ]------------ [ 41.366175] kernel BUG at fs/f2fs/node.c:1235! [ 41.371067] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 41.376429] CPU: 0 PID: 8097 Comm: syz-executor388 Not tainted 4.19.211-syzkaller #0 [ 41.384286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 41.393624] RIP: 0010:f2fs_new_node_page+0x1942/0x1f40 [ 41.398879] Code: 8f f8 ff ff 4c 89 ef e8 4c 1f 7d fe e9 77 f7 ff ff e8 42 1f 7d fe e9 48 f3 ff ff e8 38 1f 7d fe e9 21 f7 ff ff e8 ce 42 47 fe <0f> 0b e8 c7 42 47 fe 4d 8d 75 ff e9 e8 f0 ff ff e8 b9 42 47 fe 48 [ 41.417764] RSP: 0018:ffff88808c8ef390 EFLAGS: 00010293 [ 41.423104] RAX: ffff888093d161c0 RBX: ffff88809b6f9dc0 RCX: ffffffff831b30ec [ 41.430355] RDX: 0000000000000000 RSI: ffffffff831b42a2 RDI: 0000000000000005 [ 41.437602] RBP: ffffffff8b271190 R08: 0000000000000000 R09: 0000000000000000 [ 41.444936] R10: 0000000000000005 R11: 0000000000000000 R12: ffffea00028be940 [ 41.452183] R13: 0000000000001002 R14: ffff88808c8ef3f0 R15: 0000000000000000 [ 41.459433] FS: 0000555556fed300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 41.467636] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.473498] CR2: 000056234b2c10d0 CR3: 00000000a955b000 CR4: 00000000003406f0 [ 41.480751] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.488000] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.495245] Call Trace: [ 41.497816] ? f2fs_truncate_xattr_node+0x5f0/0x5f0 [ 41.502813] f2fs_new_inode_page+0xc2/0x110 [ 41.507112] ? f2fs_new_node_page+0x1f40/0x1f40 [ 41.511760] ? mark_held_locks+0xf0/0xf0 [ 41.515818] ? f2fs_reserve_block+0xb0/0x8d0 [ 41.520206] f2fs_init_inode_metadata+0xcd/0x1430 [ 41.525029] ? f2fs_do_make_empty_dir+0x1e0/0x1e0 [ 41.529851] ? lock_acquire+0x170/0x3c0 [ 41.533803] ? f2fs_add_regular_entry+0x90c/0x1560 [ 41.538734] f2fs_add_regular_entry+0x925/0x1560 [ 41.543470] ? f2fs_init_inode_metadata+0x1430/0x1430 [ 41.548638] ? __lock_acquire+0x6de/0x3ff0 [ 41.552880] f2fs_add_dentry+0x147/0x2f0 [ 41.556919] ? f2fs_add_regular_entry+0x1560/0x1560 [ 41.562008] ? projid_m_show+0x220/0x220 [ 41.566049] f2fs_do_add_link+0x307/0x4f0 [ 41.570173] ? f2fs_add_dentry+0x2f0/0x2f0 [ 41.574387] ? f2fs_create+0x706/0x930 [ 41.578252] ? f2fs_create+0x295/0x930 [ 41.582147] f2fs_create+0x336/0x930 [ 41.585859] ? f2fs_link+0x6d0/0x6d0 [ 41.589555] lookup_open+0x893/0x1a20 [ 41.593340] ? vfs_mkdir+0x7a0/0x7a0 [ 41.597035] ? unlazy_walk+0x1a4/0x540 [ 41.600920] ? check_preemption_disabled+0x41/0x280 [ 41.605932] path_openat+0x1094/0x2df0 [ 41.609801] ? path_lookupat+0x8d0/0x8d0 [ 41.613842] ? mark_held_locks+0xf0/0xf0 [ 41.617885] ? __lock_acquire+0x6de/0x3ff0 [ 41.622099] do_filp_open+0x18c/0x3f0 [ 41.625884] ? may_open_dev+0xf0/0xf0 [ 41.629698] ? lock_downgrade+0x720/0x720 [ 41.633823] ? lock_acquire+0x170/0x3c0 [ 41.637863] ? __alloc_fd+0x34/0x570 [ 41.641557] ? do_raw_spin_unlock+0x171/0x230 [ 41.646036] ? _raw_spin_unlock+0x29/0x40 [ 41.650163] ? __alloc_fd+0x28d/0x570 [ 41.653944] do_sys_open+0x3b3/0x520 [ 41.657638] ? filp_open+0x70/0x70 [ 41.661154] ? fput+0x2b/0x190 [ 41.664328] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 41.669672] ? trace_hardirqs_off_caller+0x6e/0x210 [ 41.674667] ? do_syscall_64+0x21/0x620 [ 41.678637] do_syscall_64+0xf9/0x620 [ 41.682421] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.687595] RIP: 0033:0x7f74af780979 [ 41.691293] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 41.710259] RSP: 002b:00007fffe1c51e98 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 41.717947] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f74af780979 [ 41.725193] RDX: 000000000000275a RSI: 0000000020000280 RDI: 00000000ffffff9c [ 41.732624] RBP: 00007f74af7401e0 R08: 0000555556fed2c0 R09: 0000000000000000 [ 41.739868] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f74af740270 [ 41.747111] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 41.754362] Modules linked in: [ 41.757768] ---[ end trace 16b601b4a6180c6e ]--- [ 41.762528] RIP: 0010:f2fs_new_node_page+0x1942/0x1f40 [ 41.767853] Code: 8f f8 ff ff 4c 89 ef e8 4c 1f 7d fe e9 77 f7 ff ff e8 42 1f 7d fe e9 48 f3 ff ff e8 38 1f 7d fe e9 21 f7 ff ff e8 ce 42 47 fe <0f> 0b e8 c7 42 47 fe 4d 8d 75 ff e9 e8 f0 ff ff e8 b9 42 47 fe 48 [ 41.786834] RSP: 0018:ffff88808c8ef390 EFLAGS: 00010293 [ 41.792238] RAX: ffff888093d161c0 RBX: ffff88809b6f9dc0 RCX: ffffffff831b30ec [ 41.799555] RDX: 0000000000000000 RSI: ffffffff831b42a2 RDI: 0000000000000005 [ 41.806809] RBP: ffffffff8b271190 R08: 0000000000000000 R09: 0000000000000000 [ 41.814096] R10: 0000000000000005 R11: 0000000000000000 R12: ffffea00028be940 [ 41.821416] R13: 0000000000001002 R14: ffff88808c8ef3f0 R15: 0000000000000000 [ 41.828727] FS: 0000555556fed300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 41.836936] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.842860] CR2: 000056234b2c10d0 CR3: 00000000a955b000 CR4: 00000000003406f0 [ 41.850170] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.857426] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.864757] Kernel panic - not syncing: Fatal exception [ 41.870277] Kernel Offset: disabled [ 41.873886] Rebooting in 86400 seconds..