RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 0000000020d2aa85
RDX: 0000000000000561 RSI: 0000000000000000 RDI: 0000000020d7bfe4
RBP: 000000000000001c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
BUG: unable to handle kernel paging request at 00000000011987a8
IP: atomic_add_return arch/x86/include/asm/atomic.h:157 [inline]
IP: atomic_sub_return arch/x86/include/asm/atomic.h:169 [inline]
IP: dst_release+0x1e/0x90 net/core/dst.c:183
PGD 1c9076067 P4D 1c9076067 PUD 1abab3067 PMD 0 
Oops: 0002 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 24289 Comm: syz-executor6 Not tainted 4.15.0-rc8+ #173
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:atomic_add_return arch/x86/include/asm/atomic.h:157 [inline]
RIP: 0010:atomic_sub_return arch/x86/include/asm/atomic.h:169 [inline]
RIP: 0010:dst_release+0x1e/0x90 net/core/dst.c:183
RSP: 0018:ffff8801cc22f3f8 EFLAGS: 00010246
RAX: 0000000000010000 RBX: ffff8801cc22f580 RCX: 00000000ffffffff
RDX: 0000000000010000 RSI: ffffc9000373f000 RDI: 0000000001198728
RBP: ffff8801cc22f408 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000001198728
R13: 0000000001198728 R14: ffff8801cc22f4a8 R15: ffff8801cc22f628
FS:  0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f7747b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000002087cffc CR3: 00000001c45d1006 CR4: 00000000001606f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 ip6_cork_release.isra.42+0x1bb/0x2c0 net/ipv6/ip6_output.c:1579
 ip6_make_skb+0x4f1/0x5a0 net/ipv6/ip6_output.c:1739
 udpv6_sendmsg+0x27fc/0x3400 net/ipv6/udp.c:1340
 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763
 sock_sendmsg_nosec net/socket.c:638 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:648
 SYSC_sendto+0x361/0x5c0 net/socket.c:1729
 SyS_sendto+0x40/0x50 net/socket.c:1697
 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline]
 do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389
 entry_SYSENTER_compat+0x54/0x63 arch/x86/entry/entry_64_compat.S:129
RIP: 0023:0xf7f4bc79
RSP: 002b:00000000f774708c EFLAGS: 00000296 ORIG_RAX: 0000000000000171
RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 0000000020d2aa85
RDX: 0000000000000561 RSI: 0000000000000000 RDI: 0000000020d7bfe4
RBP: 000000000000001c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Code: f7 ff 31 c0 5b 5d c3 66 0f 1f 44 00 00 55 48 89 e5 41 54 53 49 89 fc e8 61 7e 35 fd 4d 85 e4 74 24 e8 57 7e 35 fd b9 ff ff ff ff <f0> 41 0f c1 8c 24 80 00 00 00 89 cb 83 eb 01 78 33 e8 3c 7e 35 
RIP: atomic_add_return arch/x86/include/asm/atomic.h:157 [inline] RSP: ffff8801cc22f3f8
RIP: atomic_sub_return arch/x86/include/asm/atomic.h:169 [inline] RSP: ffff8801cc22f3f8
RIP: dst_release+0x1e/0x90 net/core/dst.c:183 RSP: ffff8801cc22f3f8
CR2: 00000000011987a8
---[ end trace 9727817c31354f98 ]---