kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 13043 Comm: syz-executor.5 Not tainted 5.2.0-rc1+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline] RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:264 [inline] RIP: 0010:sctp_v6_get_dst+0x8ae/0x1d80 net/sctp/ipv6.c:378 Code: fa 84 db 0f 84 15 10 00 00 e8 6e 86 d8 fa 48 8b 85 10 ff ff ff 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 48 13 00 00 48 8b 85 10 ff ff ff 4c 8b 60 70 e8 RSP: 0018:ffff88806537f530 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90010856000 RDX: 000000000000002d RSI: ffffffff86981e02 RDI: 000000000000016f RBP: ffff88806537f680 R08: ffff88806be70240 R09: ffffed1015d26be0 R10: ffffed1015d26bdf R11: ffff8880ae935efb R12: ffff8880680986c8 R13: dffffc0000000000 R14: 000000000000000a R15: 000000000000d88c FS: 00007fd72ac60700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 0000000096314000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sctp_transport_route+0x12d/0x360 net/sctp/transport.c:312 sctp_assoc_add_peer+0x53e/0xfc0 net/sctp/associola.c:678 sctp_sendmsg_new_asoc+0x5d5/0xfd0 net/sctp/socket.c:1757 sctp_sendmsg+0x125a/0x17d0 net/sctp/socket.c:2090 inet_sendmsg+0x141/0x5d0 net/ipv4/af_inet.c:802 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:671 ___sys_sendmsg+0x3e2/0x920 net/socket.c:2292 __sys_sendmmsg+0x1bf/0x4d0 net/socket.c:2387 __do_sys_sendmmsg net/socket.c:2416 [inline] __se_sys_sendmmsg net/socket.c:2413 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2413 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459279 Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd72ac5fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459279 RDX: 0000000000000001 RSI: 0000000020e8e000 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd72ac606d4 R13: 00000000004c65fc R14: 00000000004db280 R15: 00000000ffffffff Modules linked in: ---[ end trace 5d476b60df9efc3f ]--- RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline] RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:264 [inline] RIP: 0010:sctp_v6_get_dst+0x8ae/0x1d80 net/sctp/ipv6.c:378 Code: fa 84 db 0f 84 15 10 00 00 e8 6e 86 d8 fa 48 8b 85 10 ff ff ff 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 48 13 00 00 48 8b 85 10 ff ff ff 4c 8b 60 70 e8 RSP: 0018:ffff88806537f530 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90010856000 RDX: 000000000000002d RSI: ffffffff86981e02 RDI: 000000000000016f RBP: ffff88806537f680 R08: ffff88806be70240 R09: ffffed1015d26be0 R10: ffffed1015d26bdf R11: ffff8880ae935efb R12: ffff8880680986c8 R13: dffffc0000000000 R14: 000000000000000a R15: 000000000000d88c FS: 00007fd72ac60700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 0000000096314000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400