Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 42.659276] can: request_module (can-proto-0) failed. [ 42.664097] can: request_module (can-proto-0) failed. [ 43.528299] IPVS: ftp: loaded support on port[0] = 21 [ 44.249683] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.318263] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.657119] tipc: TX() has been purged, node left! [ 46.338023] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.15.209' (ECDSA) to the list of known hosts. 2020/05/16 16:50:08 parsed 1 programs 2020/05/16 16:50:08 executed programs: 0 [ 51.519614] IPVS: ftp: loaded support on port[0] = 21 [ 51.527156] IPVS: ftp: loaded support on port[0] = 21 [ 51.534927] IPVS: ftp: loaded support on port[0] = 21 [ 51.541283] IPVS: ftp: loaded support on port[0] = 21 [ 51.547902] IPVS: ftp: loaded support on port[0] = 21 [ 51.559441] IPVS: ftp: loaded support on port[0] = 21 [ 51.726215] hfs: unable to locate alternate MDB [ 51.731104] hfs: continuing without an alternate MDB [ 51.741288] hfs: unable to locate alternate MDB [ 51.746144] hfs: continuing without an alternate MDB [ 51.756656] hfs: unable to locate alternate MDB [ 51.761540] hfs: continuing without an alternate MDB [ 51.763509] hfs: unable to locate alternate MDB [ 51.768925] hfs: new node 0 already hashed? [ 51.771490] hfs: continuing without an alternate MDB [ 51.781223] ------------[ cut here ]------------ [ 51.782119] hfs: unable to locate alternate MDB [ 51.785981] WARNING: CPU: 1 PID: 3953 at fs/hfs/bnode.c:416 hfs_bnode_create.cold.13+0xe/0x15 [ 51.785987] Kernel panic - not syncing: panic_on_warn set ... [ 51.785994] CPU: 1 PID: 3953 Comm: syz-executor4 Not tainted 5.7.0-rc5-syzkaller #0 [ 51.785999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.786003] Call Trace: [ 51.786013] dump_stack+0x12f/0x187 [ 51.786023] ? hfs_bnode_create.cold.13+0xe/0x15 [ 51.786030] panic+0x22a/0x4f5 [ 51.786037] ? add_taint.cold.7+0x11/0x11 [ 51.786055] __warn.cold.10+0x25/0x28 [ 51.786063] ? hfs_bnode_create.cold.13+0xe/0x15 [ 51.786069] report_bug+0x1b0/0x270 [ 51.786079] do_error_trap+0x11b/0x200 [ 51.786088] do_invalid_op+0x36/0x40 [ 51.790946] hfs: continuing without an alternate MDB [ 51.799561] ? hfs_bnode_create.cold.13+0xe/0x15 [ 51.799571] invalid_op+0x23/0x30 [ 51.799576] RIP: 0010:hfs_bnode_create.cold.13+0xe/0x15 [ 51.799583] Code: db e8 8a 06 57 ff e9 f4 df ff ff 48 c7 c7 a0 e9 5a 87 e8 79 06 57 ff e9 8f f6 ff ff 89 de 48 c7 c7 e0 e9 5a 87 e8 66 06 57 ff <0f> 0b e9 ce fe ff ff 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 [ 51.799586] RSP: 0018:ffff8881c8d3f880 EFLAGS: 00010282 [ 51.799592] RAX: 000000000000001f RBX: 0000000000000000 RCX: ffffffff82e0028e [ 51.799596] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881db12a16c [ 51.799599] RBP: ffff8881c8d3f8c8 R08: ffffed103b6266b9 R09: ffffed103b6266b9 [ 51.799603] R10: ffff8881db1335c7 R11: ffffed103b6266b8 R12: ffff8881c8ff00e0 [ 51.823936] hfs: new node 0 already hashed? [ 51.825181] R13: dffffc0000000000 R14: ffff8881d360e900 R15: ffff8881d360e900 [ 51.825203] ? llist_add_batch+0x5e/0xa0 [ 51.825223] hfs_bmap_alloc+0x42f/0x5e0 [ 51.825235] ? hfs_bmap_reserve+0x3b0/0x3b0 [ 51.825244] ? memcpy+0x4d/0x60 [ 51.825252] ? hfs_bnode_read+0xbf/0xf0 [ 51.825271] hfs_bnode_split+0xbd/0xe20 [ 51.825279] ? memcpy+0x4d/0x60 [ 51.825286] ? hfs_bnode_read+0xbf/0xf0 [ 51.825293] ? hfs_bnode_create.cold.13+0x15/0x15 [ 51.828980] ------------[ cut here ]------------ [ 51.833640] ? hfs_bnode_read_u16+0x62/0x90 [ 51.836810] WARNING: CPU: 0 PID: 3962 at fs/hfs/bnode.c:416 hfs_bnode_create.cold.13+0xe/0x15 [ 51.840956] ? hfs_bnode_read+0xf0/0xf0 [ 51.844738] Modules linked in: [ 51.849472] ? hfs_find_exit+0xc0/0xc0 [ 51.853075] CPU: 0 PID: 3962 Comm: syz-executor5 Not tainted 5.7.0-rc5-syzkaller #0 [ 51.856962] hfs_brec_insert+0x2f0/0xbb0 [ 51.860651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.865836] ? hfs_brec_keylen+0x330/0x330 [ 51.870572] RIP: 0010:hfs_bnode_create.cold.13+0xe/0x15 [ 51.874009] hfs_cat_create+0x698/0x880 [ 51.879343] Code: db e8 8a 06 57 ff e9 f4 df ff ff 48 c7 c7 a0 e9 5a 87 e8 79 06 57 ff e9 8f f6 ff ff 89 de 48 c7 c7 e0 e9 5a 87 e8 66 06 57 ff <0f> 0b e9 ce fe ff ff 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 [ 51.898231] ? hfs_cat_build_key+0x180/0x180 [ 51.903565] RSP: 0018:ffff8881cb68f880 EFLAGS: 00010282 [ 51.910924] ? hfs_new_inode+0x4b5/0xd20 [ 51.918158] RAX: 000000000000001f RBX: 0000000000000000 RCX: ffffffff82e0028e [ 51.918162] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881db02a16c [ 51.925423] hfs_mkdir+0x57/0xc0 [ 51.932691] RBP: ffff8881cb68f8c8 R08: ffffed103b6066b9 R09: ffffed103b6066b9 [ 51.932694] R10: ffff8881db0335c7 R11: ffffed103b6066b8 R12: ffff8881c87d20e0 [ 51.937000] vfs_mkdir+0x384/0x610 [ 51.944255] R13: dffffc0000000000 R14: ffff8881d4b80800 R15: ffff8881d4b80800 [ 51.944260] FS: 00007f590e3a1700(0000) GS:ffff8881db000000(0000) knlGS:0000000000000000 [ 51.948303] do_mkdirat+0x1b7/0x210 [ 51.952247] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.956655] ? __ia32_sys_mknod+0xb0/0xb0 [ 51.960339] CR2: 0000556068a92500 CR3: 00000001c93c8000 CR4: 00000000001406f0 [ 51.960346] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.964297] ? entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 51.968264] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.968267] Call Trace: [ 51.971528] ? lockdep_hardirqs_on+0x481/0x620 [ 51.975480] hfs_bmap_alloc+0x42f/0x5e0 [ 51.980323] __x64_sys_mkdir+0x57/0x80 [ 51.985656] ? hfs_bmap_reserve+0x3b0/0x3b0 [ 51.989955] do_syscall_64+0xd0/0x630 [ 51.998650] ? memcpy+0x4d/0x60 [ 52.002604] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 52.005767] ? hfs_bnode_read+0xbf/0xf0 [ 52.009629] RIP: 0033:0x455429 [ 52.017407] hfs_bnode_split+0xbd/0xe20 [ 52.021450] Code: 1d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.030884] ? memcpy+0x4d/0x60 [ 52.035097] RSP: 002b:00007f819287dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 52.040464] ? hfs_bnode_read+0xbf/0xf0 [ 52.044524] RAX: ffffffffffffffda RBX: 00007f819287e6d4 RCX: 0000000000455429 [ 52.063412] ? hfs_bnode_create.cold.13+0x15/0x15 [ 52.067793] RDX: 0000000000000000 RSI: 0000000000000021 RDI: 0000000020000180 [ 52.073143] ? hfs_bnode_read_u16+0x62/0x90 [ 52.073149] ? hfs_bnode_read+0xf0/0xf0 [ 52.077181] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 52.077185] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 52.084460] ? hfs_find_exit+0xc0/0xc0 [ 52.091714] R13: 00000000000003ea R14: 00000000006f8e90 R15: 0000000000000000 [ 52.095254] hfs_brec_insert+0x2f0/0xbb0 [ 52.304465] ? hfs_brec_keylen+0x330/0x330 [ 52.308693] hfs_cat_create+0x698/0x880 [ 52.312651] ? hfs_cat_build_key+0x180/0x180 [ 52.317920] ? hfs_new_inode+0x4b5/0xd20 [ 52.321967] hfs_mkdir+0x57/0xc0 [ 52.325333] vfs_mkdir+0x384/0x610 [ 52.328855] do_mkdirat+0x1b7/0x210 [ 52.332549] ? __ia32_sys_mknod+0xb0/0xb0 [ 52.336861] ? entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 52.342295] ? lockdep_hardirqs_on+0x481/0x620 [ 52.346857] __x64_sys_mkdir+0x57/0x80 [ 52.350727] do_syscall_64+0xd0/0x630 [ 52.354511] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 52.359681] RIP: 0033:0x455429 [ 52.362855] Code: 1d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.381742] RSP: 002b:00007f590e3a0c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 52.389436] RAX: ffffffffffffffda RBX: 00007f590e3a16d4 RCX: 0000000000455429 [ 52.396703] RDX: 0000000000000000 RSI: 0000000000000021 RDI: 0000000020000180 [ 52.403953] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 52.411217] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 52.418465] R13: 00000000000003ea R14: 00000000006f8e90 R15: 0000000000000000 [ 52.425741] irq event stamp: 1118 [ 52.429176] hardirqs last enabled at (1117): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 52.438431] hardirqs last disabled at (1118): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 52.447768] softirqs last enabled at (832): [] wb_wakeup_delayed+0x99/0xe0 [ 52.456424] softirqs last disabled at (828): [] wb_wakeup_delayed+0x65/0xe0 [ 52.465167] ---[ end trace b21bf0330a55736c ]--- [ 52.469968] Kernel Offset: disabled [ 52.473635] Rebooting in 86400 seconds..