sock: process `syz-executor.3' is using obsolete setsockopt SO_BSDCOMPAT sock: process `syz-executor.4' is using obsolete setsockopt SO_BSDCOMPAT BUG: unable to handle kernel NULL pointer dereference at 00000000000000fc IP: qlink_to_object mm/kasan/quarantine.c:136 [inline] IP: qlink_free mm/kasan/quarantine.c:141 [inline] IP: qlist_free_all+0x28/0x140 mm/kasan/quarantine.c:166 PGD 9d0c3067 P4D 9d0c3067 PUD 9c80b067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 7966 Comm: syz-fuzzer Not tainted 4.14.231-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88809839e040 task.stack: ffff8880962c8000 RIP: 0010:qlink_to_object mm/kasan/quarantine.c:136 [inline] RIP: 0010:qlink_free mm/kasan/quarantine.c:141 [inline] RIP: 0010:qlist_free_all+0x28/0x140 mm/kasan/quarantine.c:166 RSP: 0018:ffff8880962cf678 EFLAGS: 00010246 RAX: ffffea0000000000 RBX: ffff888000000000 RCX: ffffea000000001f RDX: 0000000000000000 RSI: ffff88809839e8f0 RDI: ffff888000000000 RBP: 0000000000000000 R08: 0000000000001d80 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888000000000 R13: ffff8880962cf6b0 R14: 0000000000000000 R15: 0000000000000286 FS: 000000c00002ec90(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000fc CR3: 0000000097dd4000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: quarantine_reduce+0x185/0x200 mm/kasan/quarantine.c:259 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:536 slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc_node mm/slab.c:3333 [inline] kmem_cache_alloc_node+0x133/0x410 mm/slab.c:3640 __alloc_skb+0x5c/0x510 net/core/skbuff.c:193 alloc_skb_fclone include/linux/skbuff.h:1022 [inline] sk_stream_alloc_skb+0xb1/0x760 net/ipv4/tcp.c:855 tcp_sendmsg_locked+0xed8/0x2ef0 net/ipv4/tcp.c:1301 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1457 inet_sendmsg+0x11a/0x4e0 net/ipv4/af_inet.c:762 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 sock_write_iter+0x22c/0x370 net/socket.c:925 call_write_iter include/linux/fs.h:1778 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x44c/0x630 fs/read_write.c:482 vfs_write+0x17f/0x4d0 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xf2/0x210 fs/read_write.c:582 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x4af19b RSP: 002b:000000c0147df450 EFLAGS: 00000206 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b RDX: 00000000000000f0 RSI: 000000c00000a200 RDI: 0000000000000006 RBP: 000000c0147df4a0 R08: 000000c0147df501 R09: 0000000000000004 R10: 000000c00000a1e0 R11: 0000000000000206 R12: 000000000000011e R13: 000000c00047a000 R14: 000000000000007f R15: fffffffffffebc04 Code: 90 90 90 41 57 41 56 41 55 41 54 55 53 48 8b 1f 48 85 db 0f 84 08 01 00 00 48 89 f5 49 89 fd 48 85 ed 49 89 ee 0f 84 8b 00 00 00 <49> 63 86 fc 00 00 00 4c 8b 23 48 29 c3 48 83 3d f3 c3 71 07 00 RIP: qlink_to_object mm/kasan/quarantine.c:136 [inline] RSP: ffff8880962cf678 RIP: qlink_free mm/kasan/quarantine.c:141 [inline] RSP: ffff8880962cf678 RIP: qlist_free_all+0x28/0x140 mm/kasan/quarantine.c:166 RSP: ffff8880962cf678 CR2: 00000000000000fc BUG: unable to handle kernel NULL pointer dereference at 00000000000000fc IP: qlink_to_object mm/kasan/quarantine.c:136 [inline] IP: qlink_free mm/kasan/quarantine.c:141 [inline] IP: qlist_free_all+0x28/0x140 mm/kasan/quarantine.c:166 PGD 0 P4D 0 Oops: 0000 [#2] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 4636 Comm: systemd-udevd Tainted: G D 4.14.231-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888098ffc440 task.stack: ffff888098400000 RIP: 0010:qlink_to_object mm/kasan/quarantine.c:136 [inline] RIP: 0010:qlink_free mm/kasan/quarantine.c:141 [inline] RIP: 0010:qlist_free_all+0x28/0x140 mm/kasan/quarantine.c:166 RSP: 0018:ffff888098407ae0 EFLAGS: 00010246 RAX: ffffea0000000000 RBX: ffff888000000000 RCX: ffffea000000001f RDX: 0000000000000000 RSI: ffffffff87cce9c0 RDI: ffff888000000000 RBP: 0000000000000000 R08: ffffea000184a300 R09: 0000000000000000 R10: 0000000000000000 R11: 000000000006128c R12: ffff888000000000 R13: ffff888098407b18 R14: 0000000000000000 R15: 0000000000000286 FS: 00007f7d6fd788c0(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000fc CR3: 0000000098798000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: quarantine_reduce+0x185/0x200 mm/kasan/quarantine.c:259 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:536 ------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:27! sock: process `syz-executor.3' is using obsolete setsockopt SO_BSDCOMPAT slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc mm/slab.c:3390 [inline] kmem_cache_alloc+0x111/0x3c0 mm/slab.c:3550 sock: process `syz-executor.4' is using obsolete setsockopt SO_BSDCOMPAT getname_flags+0xc8/0x550 fs/namei.c:138 user_path_at_empty+0x2a/0x50 fs/namei.c:2631 SYSC_readlinkat fs/stat.c:394 [inline] SyS_readlinkat+0xa8/0x270 fs/stat.c:382 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f7d6ebec0ba RSP: 002b:00007fffb480e5f8 EFLAGS: 00000206 ORIG_RAX: 000000000000010b RAX: ffffffffffffffda RBX: 0000555e7a51e900 RCX: 00007f7d6ebec0ba RDX: 0000555e7a51e900 RSI: 0000555e7a52c720 RDI: 00000000ffffff9c RBP: 0000000000000064 R08: 0000555e79424670 R09: 0000000000000070 R10: 0000000000000063 R11: 0000000000000206 R12: 0000555e7a52c720 R13: 00000000ffffff9c R14: 00007fffb480e650 R15: 0000000000000063 Code: 90 90 90 41 57 41 56 41 55 41 54 55 53 48 8b 1f 48 85 db 0f 84 08 01 00 00 48 89 f5 49 89 fd 48 85 ed 49 89 ee 0f 84 8b 00 00 00 <49> 63 86 fc 00 00 00 4c 8b 23 48 29 c3 48 83 3d f3 c3 71 07 00 RIP: qlink_to_object mm/kasan/quarantine.c:136 [inline] RSP: ffff888098407ae0 RIP: qlink_free mm/kasan/quarantine.c:141 [inline] RSP: ffff888098407ae0 RIP: qlist_free_all+0x28/0x140 mm/kasan/quarantine.c:166 RSP: ffff888098407ae0 CR2: 00000000000000fc invalid opcode: 0000 [#3] PREEMPT SMP KASAN Modules linked in: ---[ end trace c18de1d9f47ef0ab ]--- CPU: 1 PID: 4622 Comm: systemd-journal Tainted: G D 4.14.231-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880a17ca0c0 task.stack: ffff8880a17d0000 RIP: 0010:__phys_addr+0x80/0xe0 arch/x86/mm/physaddr.c:27