Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 41.469606] can: request_module (can-proto-0) failed. [ 41.473451] can: request_module (can-proto-0) failed. [ 42.152735] IPVS: ftp: loaded support on port[0] = 21 [ 42.224013] ip (3434) used greatest stack depth: 11480 bytes left [ 42.364276] 8021q: adding VLAN 0 to HW filter on device bond0 [ 42.391389] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.127656] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.15.215' (ECDSA) to the list of known hosts. 2020/12/07 12:46:51 parsed 1 programs 2020/12/07 12:46:51 executed programs: 0 [ 49.186410] IPVS: ftp: loaded support on port[0] = 21 [ 49.190396] IPVS: ftp: loaded support on port[0] = 21 [ 49.196361] IPVS: ftp: loaded support on port[0] = 21 [ 49.203441] IPVS: ftp: loaded support on port[0] = 21 [ 49.207661] hfs: unable to locate alternate MDB [ 49.213758] hfs: continuing without an alternate MDB [ 49.213820] IPVS: ftp: loaded support on port[0] = 21 [ 49.224067] IPVS: ftp: loaded support on port[0] = 21 [ 49.236781] hfs: new node 0 already hashed? [ 49.241370] ------------[ cut here ]------------ [ 49.246180] WARNING: CPU: 0 PID: 3651 at fs/hfs/bnode.c:416 hfs_bnode_create.cold.13+0xe/0x15 [ 49.254963] Modules linked in: [ 49.258190] CPU: 0 PID: 3651 Comm: syz-executor4 Not tainted 5.10.0-rc7-syzkaller #0 [ 49.266101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.275499] RIP: 0010:hfs_bnode_create.cold.13+0xe/0x15 [ 49.280900] Code: f6 e8 a4 0f ff ff e9 6a c4 86 fe 48 c7 c7 b8 b5 be 83 e8 93 0f ff ff e9 62 cb 86 fe 89 de 48 c7 c7 08 b6 be 83 e8 80 0f ff ff <0f> 0b e9 8f cd 86 fe 48 c7 c7 2c b6 be 83 e8 6d 0f ff ff 31 c0 e9 [ 49.299837] hfs: unable to locate alternate MDB [ 49.300188] RSP: 0018:ffffc9000024bbd8 EFLAGS: 00010246 [ 49.304871] hfs: continuing without an alternate MDB [ 49.310189] RAX: 000000000000001f RBX: 0000000000000000 RCX: 0000000000000000 [ 49.310192] RDX: 0000000000000000 RSI: ffff888237c18ed0 RDI: ffff888237c18ed0 [ 49.310194] RBP: ffffc9000024bc08 R08: 0000000000000001 R09: 0000000000000001 [ 49.336954] hfs: unable to locate alternate MDB [ 49.337320] R10: 0000000000000001 R11: ffffc9000024b9c0 R12: ffff888100ee10e0 [ 49.342098] hfs: continuing without an alternate MDB [ 49.349717] R13: ffff888108de53c0 R14: ffff888100ee1000 R15: ffff888108de53c0 [ 49.349722] FS: 00007fc090bba700(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 [ 49.349724] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.367510] hfs: unable to locate alternate MDB [ 49.370344] CR2: 000000000072c051 CR3: 000000010a07e000 CR4: 0000000000350ef0 [ 49.370349] Call Trace: [ 49.370359] hfs_bmap_alloc+0x218/0x270 [ 49.370368] hfs_bnode_split+0x37/0x390 [ 49.370374] ? _cond_resched+0x14/0x30 [ 49.370381] hfs_brec_insert+0xce/0x370 [ 49.370389] hfs_cat_create+0x298/0x2f0 [ 49.370401] hfs_mkdir+0x3c/0xa0 [ 49.370407] vfs_mkdir+0x10d/0x1c0 [ 49.370412] do_mkdirat+0xe3/0x110 [ 49.376295] hfs: continuing without an alternate MDB [ 49.382708] hfs: new node 0 already hashed? [ 49.388261] __x64_sys_mkdir+0x16/0x20 [ 49.388265] do_syscall_64+0x37/0x80 [ 49.388269] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.388272] RIP: 0033:0x4554a9 [ 49.388276] Code: 9d b9 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 6b b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 49.388278] RSP: 002b:00007fc090bb9c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 49.390882] ------------[ cut here ]------------ [ 49.394845] RAX: ffffffffffffffda RBX: 00007fc090bba6d4 RCX: 00000000004554a9 [ 49.398819] WARNING: CPU: 1 PID: 3762 at fs/hfs/bnode.c:416 hfs_bnode_create.cold.13+0xe/0x15 [ 49.402687] RDX: 0000000000000000 RSI: 0000000000000021 RDI: 0000000020000180 [ 49.402689] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 49.406660] Modules linked in: [ 49.410622] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 49.413978] [ 49.413983] CPU: 1 PID: 3762 Comm: syz-executor Not tainted 5.10.0-rc7-syzkaller #0 [ 49.417513] R13: 00000000000003ea R14: 00000000006f8e90 R15: 0000000000000000 [ 49.421047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.421051] RIP: 0010:hfs_bnode_create.cold.13+0xe/0x15 [ 49.426153] Kernel panic - not syncing: panic_on_warn set ... [ 49.430476] Code: f6 e8 a4 0f ff ff e9 6a c4 86 fe 48 c7 c7 b8 b5 be 83 e8 93 0f ff ff e9 62 cb 86 fe 89 de 48 c7 c7 08 b6 be 83 e8 80 0f ff ff <0f> 0b e9 8f cd 86 fe 48 c7 c7 2c b6 be 83 e8 6d 0f ff ff 31 c0 e9 [ 49.434499] CPU: 0 PID: 3651 Comm: syz-executor4 Not tainted 5.10.0-rc7-syzkaller #0 [ 49.434500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.434501] Call Trace: [ 49.434506] dump_stack+0xa9/0xd1 [ 49.434510] panic+0x135/0x32c [ 49.434516] ? hfs_bnode_create.cold.13+0xe/0x15 [ 49.434519] __warn.cold.13+0x16/0x20 [ 49.438219] RSP: 0018:ffffc9000043bbd8 EFLAGS: 00010246 [ 49.443830] ? hfs_bnode_create.cold.13+0xe/0x15 [ 49.443837] report_bug+0xc5/0x100 [ 49.443843] handle_bug+0x39/0xa0 [ 49.443845] exc_invalid_op+0x18/0x70 [ 49.443849] asm_exc_invalid_op+0x12/0x20 [ 49.443852] RIP: 0010:hfs_bnode_create.cold.13+0xe/0x15 [ 49.443855] Code: f6 e8 a4 0f ff ff e9 6a c4 86 fe 48 c7 c7 b8 b5 be 83 e8 93 0f ff ff e9 62 cb 86 fe 89 de 48 c7 c7 08 b6 be 83 e8 80 0f ff ff <0f> 0b e9 8f cd 86 fe 48 c7 c7 2c b6 be 83 e8 6d 0f ff ff 31 c0 e9 [ 49.443857] RSP: 0018:ffffc9000024bbd8 EFLAGS: 00010246 [ 49.443860] RAX: 000000000000001f RBX: 0000000000000000 RCX: 0000000000000000 [ 49.443862] RDX: 0000000000000000 RSI: ffff888237c18ed0 RDI: ffff888237c18ed0 [ 49.443863] RBP: ffffc9000024bc08 R08: 0000000000000001 R09: 0000000000000001 [ 49.443865] R10: 0000000000000001 R11: ffffc9000024b9c0 R12: ffff888100ee10e0 [ 49.443868] R13: ffff888108de53c0 R14: ffff888100ee1000 R15: ffff888108de53c0 [ 49.447068] [ 49.465965] ? hfs_bnode_create.cold.13+0xe/0x15 [ 49.465971] hfs_bmap_alloc+0x218/0x270 [ 49.465977] hfs_bnode_split+0x37/0x390 [ 49.465981] ? _cond_resched+0x14/0x30 [ 49.465986] hfs_brec_insert+0xce/0x370 [ 49.473694] RAX: 000000000000001f RBX: 0000000000000000 RCX: 0000000000000000 [ 49.478421] hfs_cat_create+0x298/0x2f0 [ 49.478431] hfs_mkdir+0x3c/0xa0 [ 49.478437] vfs_mkdir+0x10d/0x1c0 [ 49.478441] do_mkdirat+0xe3/0x110 [ 49.485891] RDX: 0000000000000000 RSI: ffff888237d18ed0 RDI: ffff888237d18ed0 [ 49.494523] __x64_sys_mkdir+0x16/0x20 [ 49.494527] do_syscall_64+0x37/0x80 [ 49.494530] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.494533] RIP: 0033:0x4554a9 [ 49.494538] Code: 9d b9 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 6b b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 49.494540] RSP: 002b:00007fc090bb9c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 49.501821] RBP: ffffc9000043bc08 R08: 0000000000000001 R09: 0000000000000001 [ 49.509058] RAX: ffffffffffffffda RBX: 00007fc090bba6d4 RCX: 00000000004554a9 [ 49.509060] RDX: 0000000000000000 RSI: 0000000000000021 RDI: 0000000020000180 [ 49.509062] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 49.509064] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 49.509065] R13: 00000000000003ea R14: 00000000006f8e90 R15: 0000000000000000 [ 49.515738] Kernel Offset: disabled [ 49.849085] Rebooting in 86400 seconds..