# https://syzkaller.appspot.com/bug?id=2823b77d382513d6a1cd8e696d4619bcbe1d5e0d
# See https://goo.gl/kgGztJ for information about syzkaller reproducers.
#{"threaded":true,"repeat":true,"procs":4,"slowdown":1,"sandbox":"none","sandbox_arg":0,"close_fds":false,"tmpdir":true,"segv":true}
r0 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r0, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r0, 0x0, 0x0) (async)
sendmsg$inet6_sctp(r0, &(0x7f0000000740)={&(0x7f0000000280)=@in={0x10, 0x2, 0x3, @broadcast}, 0x10, &(0x7f0000000480)=[{&(0x7f0000000380)="ca1b3b5c422ca65675e274c42923889a63f250f3618af3499af18ae3b738b9b6b5428e18e8a6f70a1fad05f03388e5d7fcc796fa874a4c850fc114d59d7d095f07c3338b7653ed756e08fc8325e69831de6411138839053b1a7b32636f2e05fcbcada2375bde92ed0ac706042efe8a3bcd095a7ab57ac9ddbdc94f155bf7e75926505845f59d15ada6e76061b7834bf5c7d501f26c2752d451ca96b5f61b34c88865cfe25dfb939a9fcbb914576b327536774e0c58a39e0a1439a32fb837ba6dfe9ea43cb51008fcaeec67663ce77bfbc50affa69135c938", 0xd8}, {&(0x7f00000001c0)="47708aa26f004be1789c08aeb40d0c8246c888898f0571d10a001857ac20db0cd8e062f24824e76802848efb21e6aef453c46fb7d90652475b614ae803fa435214362114349b82946677d9fd142aa6bb617033770a391dbfca5781c270e368983e8716559650762d28e7aa65c9d1c963d21f590d25", 0x75}], 0x2, 0x0, 0x0, 0x60189}, 0x0)
flock(r0, 0x9)
r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
ioctl$DIOCRTSTADDRS(r1, 0xc4504449, &(0x7f0000000800)={{"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", "e93eb9bf9601e3d9a2b13e955890188e3e96931f49ac1dbbe1e78f252f25e18b"}, 0x0, 0x14})
freebsd11_fstat(r1, &(0x7f00000002c0))
socket$inet6_sctp(0x1c, 0x5, 0x84) (rerun: 64)
r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
r3 = fork() (rerun: 32)
fcntl$lock(r2, 0xc, &(0x7f0000000600)={0x1, 0x0, 0x6, 0x80000001, r3})
socket$inet6_icmp(0x1c, 0x2, 0x3a)