dst_release: dst:000000009b5fee1c refcnt:-2051609226 dst_release: dst:000000009b5fee1c refcnt:-2051609226 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: 0 PID: 32665 Comm: syz-executor.0 Not tainted 5.2.0-rc1+ #30 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:265 [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 de a4 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:ffff8880640af150 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90005de1000 RDX: 000000000000033f RSI: ffffffff8697ff92 RDI: 00000000000019f9 RBP: ffff8880640af2a0 R08: ffff8880a897e540 R09: ffffed1015d26be0 R10: ffffed1015d26bdf R11: ffff8880ae935efb R12: ffff88809b506648 R13: dffffc0000000000 R14: 000000000000000a R15: 000000000000204e FS: 00007fb142617700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdccfdae7c CR3: 000000009ff12000 CR4: 00000000001406f0 Call Trace: sctp_transport_route+0x12d/0x360 net/sctp/transport.c:312 sctp_assoc_add_peer+0x53e/0xfc0 net/sctp/associola.c:678 sctp_process_param net/sctp/sm_make_chunk.c:2546 [inline] sctp_process_init+0x2491/0x2b10 net/sctp/sm_make_chunk.c:2359 sctp_sf_do_unexpected_init net/sctp/sm_statefuns.c:1556 [inline] sctp_sf_do_unexpected_init.isra.0+0x7cd/0x1350 net/sctp/sm_statefuns.c:1456 sctp_sf_do_5_2_1_siminit+0x35/0x40 net/sctp/sm_statefuns.c:1685 sctp_do_sm+0x121/0x50e0 net/sctp/sm_sideeffect.c:1162 sctp_assoc_bh_rcv+0x343/0x660 net/sctp/associola.c:1074 sctp_inq_push+0x1e4/0x280 net/sctp/inqueue.c:95 sctp_backlog_rcv+0x196/0xbe0 net/sctp/input.c:354 sk_backlog_rcv include/net/sock.h:950 [inline] __release_sock+0x129/0x390 net/core/sock.c:2418 release_sock+0x59/0x1c0 net/core/sock.c:2934 sctp_wait_for_connect+0x316/0x540 net/sctp/socket.c:9054 __sctp_connect+0xab2/0xcd0 net/sctp/socket.c:1241 sctp_connect net/sctp/socket.c:4861 [inline] sctp_inet_connect+0x29c/0x340 net/sctp/socket.c:4877 __sys_connect+0x264/0x330 net/socket.c:1840 __do_sys_connect net/socket.c:1851 [inline] __se_sys_connect net/socket.c:1848 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:1848 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:00007fb142616c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279 RDX: 000000000000001c RSI: 0000000020000080 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb1426176d4 R13: 00000000004bf74d R14: 00000000004d0c18 R15: 00000000ffffffff Modules linked in: ---[ end trace 52e4897bec9ae826 ]--- RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline] RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:265 [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 de a4 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:ffff8880640af150 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90005de1000 RDX: 000000000000033f RSI: ffffffff8697ff92 RDI: 00000000000019f9 RBP: ffff8880640af2a0 R08: ffff8880a897e540 R09: ffffed1015d26be0 R10: ffffed1015d26bdf R11: ffff8880ae935efb R12: ffff88809b506648 R13: dffffc0000000000 R14: 000000000000000a R15: 000000000000204e FS: 00007fb142617700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000070d09b CR3: 000000009ff12000 CR4: 00000000001406e0