last executing test programs:

4.856507048s ago: executing program 1 (id=148):
getpid()
symlinkat(0x0, 0xffffffffffffffff, 0x0)
socket$inet6_sctp(0x1c, 0x1, 0x84)
ksem_trywait(0x0)
ksem_init(&(0x7f0000000000)=<r0=>0x0, 0x1)
ksem_trywait(r0)
ksem_wait(r0)
ksem_wait(r0)
ksem_destroy(r0)
ksem_init(&(0x7f0000000040), 0x80000000)
ksem_getvalue(r0, &(0x7f0000000080))
r1 = kqueue()
r2 = kqueue()
freebsd11_kevent(r1, 0x0, 0x0, &(0x7f0000000080), 0x1d, 0x0)
dup2(r2, r1)
r3 = openat$crypto(0xffffffffffffff9c, &(0x7f0000000700), 0x0, 0x0)
ioctl$CIOCGSESSION2(r3, 0xc040636a, &(0x7f00000000c0)={0x15, 0xf, 0x12, &(0x7f0000000080)="000000000000d40b0000000000000017b670", 0x0, 0x0, 0x0, 0xfdfeffff})

4.000422798s ago: executing program 1 (id=153):
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
r1 = dup2(0xffffffffffffffff, 0xffffffffffffffff)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, 0x0, &(0x7f0000001700))
socket(0x0, 0x0, 0x0)
setsockopt$inet6_IPV6_HOPOPTS(0xffffffffffffffff, 0x29, 0x31, &(0x7f00000016c0)=ANY=[@ANYBLOB="0004000000000000040100"], 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b341bdbfd6dc85dd7b948384873e36b7f552234749130e94c3e137f", 0x77, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
kqueue()
kevent(0xffffffffffffffff, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c5, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
r2 = socket$inet_sctp(0x2, 0x5, 0x84)
r3 = socket$inet_sctp(0x2, 0x5, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r3, 0x84, 0x28, &(0x7f0000000280)={0x1, [<r4=>0x0]}, &(0x7f00000002c0)=0x8)
setsockopt$inet_sctp_SCTP_CONTEXT(r2, 0x84, 0x1a, &(0x7f0000000180)={r4}, 0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
r5 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r5, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r5, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r5, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)

3.46552494s ago: executing program 3 (id=160):
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
kqueue()
r1 = socket$inet_sctp(0x2, 0x5, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x28, 0x0, &(0x7f00000002c0))
setsockopt$inet_sctp_SCTP_CONTEXT(r1, 0x84, 0x1a, &(0x7f0000000180), 0x8)
dup2(0xffffffffffffffff, 0xffffffffffffffff)
connect$inet(0xffffffffffffffff, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(0xffffffffffffffff, 0x6, 0x2000, &(0x7f0000000200)={'rack\x00'}, 0x24)
rfork(0x85000)

3.384258702s ago: executing program 3 (id=161):
getpid()
symlinkat(0x0, 0xffffffffffffffff, 0x0)
socket$inet6_sctp(0x1c, 0x1, 0x84)
ksem_trywait(0x0)
ksem_init(&(0x7f0000000000)=<r0=>0x0, 0x1)
ksem_trywait(r0)
ksem_wait(r0)
ksem_wait(r0)
ksem_destroy(r0)
ksem_init(&(0x7f0000000040), 0x80000000)
ksem_getvalue(r0, &(0x7f0000000080))
r1 = kqueue()
r2 = kqueue()
freebsd11_kevent(r1, 0x0, 0x0, &(0x7f0000000080), 0x1d, 0x0)
dup2(r2, r1)
r3 = openat$crypto(0xffffffffffffff9c, &(0x7f0000000700), 0x0, 0x0)
ioctl$CIOCGSESSION2(r3, 0xc040636a, &(0x7f00000000c0)={0x15, 0xf, 0x12, &(0x7f0000000080)="000000000000d40b0000000000000017b670", 0x0, 0x0, 0x0, 0xfdfeffff})

3.149806824s ago: executing program 1 (id=162):
dup2(0xffffffffffffffff, 0xffffffffffffffff)
setsockopt$inet6_IPV6_HOPOPTS(0xffffffffffffffff, 0x29, 0x31, &(0x7f00000016c0)=ANY=[@ANYBLOB="000400000000000004"], 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty, 0x10}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b341bdbfd6dc85dd7b948384873e36b7f552234749130e9", 0x73, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c5, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
socket$inet_sctp(0x2, 0x5, 0x84)
setsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x1a, &(0x7f0000000180), 0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
dup2(0xffffffffffffffff, 0xffffffffffffffff)
r1 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r1, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r1, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r1, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
sendmsg$inet6_sctp(r1, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x186}], 0x1}, 0x0)

3.02613636s ago: executing program 0 (id=163):
setsockopt$inet_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x0, 0x51, &(0x7f0000000500)={0x18b, {{0x10, 0x2, 0x1, @multicast2}}}, 0x84)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
aio_write(0x0)
socket$inet6_sctp(0x1c, 0x0, 0x84)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000f80), 0x0, 0x0)
socket$inet6_tcp(0x1c, 0x1, 0x0)
getsockopt$inet_sctp_SCTP_RECVRCVINFO(0xffffffffffffffff, 0x84, 0x1f, &(0x7f0000000080), &(0x7f00000000c0)=0x4)
r1 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r1, 0x6, 0x2000, &(0x7f0000000300)={'rack\x00'}, 0x24)
setsockopt$inet_tcp_int(r1, 0x6, 0x22, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000240)={0x10, 0x2, 0x2, @remote={0xac, 0x14, 0x0}}, 0x10)
shutdown(r1, 0x0)
socket$inet6_sctp(0x1c, 0x0, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x28, 0x0, 0x0)
getsockopt$inet6_sctp_SCTP_MAXSEG(0xffffffffffffffff, 0x84, 0xe, 0x0, 0x0)
shutdown(0xffffffffffffffff, 0x0)
ioctl$CIOCGSESSION2(0xffffffffffffffff, 0xc030636a, 0x0)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140), &(0x7f0000000180)=0x20)
mincore(&(0x7f0000013000/0x4000)=nil, 0x4000, 0x0)
r3 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_EVENTS(r3, 0x84, 0xc, &(0x7f0000000000)={0x0, 0xd7, 0x0, 0x0, 0x0, 0xff, 0x0, 0x0, 0xe, 0x8c, 0x8}, 0xb)
recvfrom$inet(r2, 0x0, 0x0, 0x42, 0x0, 0x97c43268a56c953)

2.455550765s ago: executing program 3 (id=164):
setsockopt$inet_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x0, 0x51, &(0x7f0000000500)={0x18b, {{0x10, 0x2, 0x1, @multicast2}}}, 0x84)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
r1 = socket(0x1c, 0x1, 0x0)
aio_write(0x0)
socket$inet6_sctp(0x1c, 0x0, 0x84)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000f80), 0x0, 0x0)
socket$inet6_tcp(0x1c, 0x1, 0x0)
getsockopt$inet_sctp_SCTP_RECVRCVINFO(r1, 0x84, 0x1f, &(0x7f0000000080), &(0x7f00000000c0)=0x4)
r2 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r2, 0x6, 0x2000, &(0x7f0000000300)={'rack\x00'}, 0x24)
setsockopt$inet_tcp_int(r2, 0x6, 0x22, 0x0, 0x0)
connect$inet(r2, &(0x7f0000000240)={0x10, 0x2, 0x2, @remote={0xac, 0x14, 0x0}}, 0x10)
shutdown(r2, 0x0)
socket$inet6_sctp(0x1c, 0x0, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x28, 0x0, 0x0)
getsockopt$inet6_sctp_SCTP_MAXSEG(0xffffffffffffffff, 0x84, 0xe, 0x0, 0x0)
shutdown(0xffffffffffffffff, 0x0)
r3 = openat$crypto(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$CIOCGSESSION2(r3, 0xc030636a, 0x0)
r4 = socket$inet_sctp(0x2, 0x1, 0x84)
dup(r4)
mincore(&(0x7f0000013000/0x4000)=nil, 0x4000, 0x0)
kmq_open(0x0, 0x0, 0x0, 0x0)
r5 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_EVENTS(r5, 0x84, 0xc, &(0x7f0000000000)={0x0, 0xd7, 0x0, 0x0, 0x0, 0xff, 0x0, 0x0, 0xe, 0x8c, 0x8}, 0xb)
sendto$inet(r1, 0x0, 0x0, 0x101, 0x0, 0x0)
recvfrom$inet(r4, 0x0, 0x0, 0x42, 0x0, 0x97c43268a56c953)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x20181, 0x0, 0x0)

2.392736046s ago: executing program 2 (id=165):
getpid()
symlinkat(0x0, 0xffffffffffffffff, 0x0)
socket$inet6_sctp(0x1c, 0x1, 0x84)
ksem_trywait(0x0)
ksem_init(&(0x7f0000000000)=<r0=>0x0, 0x1)
ksem_trywait(r0)
ksem_wait(r0)
ksem_wait(r0)
ksem_destroy(r0)
ksem_init(&(0x7f0000000040), 0x80000000)
ksem_getvalue(r0, &(0x7f0000000080))
r1 = kqueue()
kqueue()
freebsd11_kevent(r1, 0x0, 0x0, &(0x7f0000000080), 0x1d, 0x0)
dup2(0xffffffffffffffff, r1)
rfork(0x0)
ksem_destroy(0x0)
ksem_getvalue(0x0, &(0x7f0000000200))
shmdt(0x0)
r2 = openat$crypto(0xffffffffffffff9c, &(0x7f0000000700), 0x0, 0x0)
ioctl$CIOCGSESSION2(r2, 0xc040636a, &(0x7f00000000c0)={0x15, 0xf, 0x18, &(0x7f0000000080)="000000000000d40b0000000000000017b670f5e6613250d5", 0x0, 0x0, 0x0, 0xfdfeffff})

2.274616135s ago: executing program 1 (id=166):
socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(0xffffffffffffffff, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
r0 = dup2(0xffffffffffffffff, 0xffffffffffffffff)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r0, 0x84, 0x105, 0x0, &(0x7f0000001700))
r1 = socket(0x0, 0x0, 0x0)
setsockopt$inet6_IPV6_HOPOPTS(r1, 0x29, 0x31, 0x0, 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b", 0x5c, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r2 = kqueue()
kevent(r2, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0x0, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
r3 = socket$inet_sctp(0x2, 0x5, 0x84)
r4 = socket$inet_sctp(0x2, 0x5, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r4, 0x84, 0x28, &(0x7f0000000280)={0x1, [<r5=>0x0]}, &(0x7f00000002c0)=0x8)
setsockopt$inet_sctp_SCTP_CONTEXT(r3, 0x84, 0x1a, &(0x7f0000000180)={r5}, 0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(0xffffffffffffffff, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(0xffffffffffffffff, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
rfork(0x85000)

2.209662571s ago: executing program 0 (id=167):
r0 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x10000000)
ioctl$DIOCGETRULES(0xffffffffffffffff, 0xcbe04406, &(0x7f0000002500)="1a96edd80763523d70")
sendmsg$unix(0xffffffffffffffff, 0x0, 0x0)
mkdir(0x0, 0x0)
r1 = socket$inet_sctp(0x2, 0x1, 0x84)
bind$inet(r1, &(0x7f0000000280)={0x10, 0x2, 0x3}, 0x10)
openat$filemon(0xffffff9c, &(0x7f00000002c0), 0x0, 0x0)
freebsd10_pipe(&(0x7f0000000100))
open(&(0x7f0000000480)='./file0\x00', 0x0, 0xe)
sendto$inet(r0, 0x0, 0x0, 0x100, 0x0, 0x0)
getsockopt$inet_sctp_SCTP_PEER_ADDR_THLDS(0xffffffffffffffff, 0x84, 0x23, &(0x7f0000000140)={@in6={{0x1c, 0x1c, 0x1, 0x0, @ipv4={'\x00', '\xff\xff', @rand_addr=0x76}, 0x486}}, 0x0, 0x9a, 0x49c5}, &(0x7f0000000000)=0x90)
profil(0x0, 0x0, 0x0, 0x0)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_INITMSG(r2, 0x84, 0x3, &(0x7f0000000340)={0x8003}, 0x8)
rfork(0x7010)

2.168179981s ago: executing program 0 (id=168):
dup2(0xffffffffffffffff, 0xffffffffffffffff)
setsockopt$inet6_IPV6_HOPOPTS(0xffffffffffffffff, 0x29, 0x31, &(0x7f00000016c0)=ANY=[], 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty, 0x10}, 0x1c)
syz_emit_ethernet(0x42, 0x0)
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r0, 0x84, 0x28, &(0x7f0000000280)={0x1, [0x0]}, 0x0)
dup2(0xffffffffffffffff, 0xffffffffffffffff)
r1 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r1, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r1, 0x6, 0x1, 0x0, 0x0)
connect$inet(r1, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
sendmsg$inet6_sctp(r1, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x185}], 0x1, 0x0, 0x0, 0x81}, 0x0)
rfork(0x85000)
bind$inet6(0xffffffffffffffff, &(0x7f0000000140)={0x1c, 0x1c, 0x3, 0x0, @empty}, 0x1c)

2.071829094s ago: executing program 0 (id=169):
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, 0x0, 0x0)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x105, 0x0, &(0x7f0000001700))
r1 = socket(0x0, 0x0, 0x0)
setsockopt$inet6_IPV6_HOPOPTS(r1, 0x29, 0x31, &(0x7f00000016c0)=ANY=[@ANYBLOB="000400000000"], 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty, 0x10}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b341bdbfd6dc85dd7b948384873e36b7f552234749130e94c3e137fe507ad", 0x7a, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
kevent(0xffffffffffffffff, &(0x7f0000000040)=[{0x0, 0x0, 0x9, 0x0, 0x0, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x28, &(0x7f0000000280)={0x1, [0x0]}, &(0x7f00000002c0)=0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
socket$inet6_sctp(0x1c, 0x1, 0x84)
r2 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r2, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r2, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r2, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
sendmsg$inet6_sctp(r2, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="ca1b3b5c422ca65675e274c429d4ecb6043c5c10548af3499af18ae3b738b9b6b5428e18e8a6f70a1fad05f03388e5d7fcc796fa874a4c850fc114d59d7d095f07c3338b7653ed757e08fc8325e69831de6411138839053b1a7b32636f2e05fcbcada2375bde92ed0ac706042efe8a3bcd095a7ab57ac9ddbdc94f1545f59d15ada6e76061b7834beac7d501f26c2752d451ca96b5f61b24c88865cfe25dfb939a9fcbb9146239110e08576b3ec84e75714e740034e78dba801094faa3edb5774e0c58a39e0a1439a32fb837000000000000800108fcaeec67663ce77bfbc50affa69135c9385cd6d36ff365039a3c5a89a24e3fed7dee1a35", 0xf9}], 0x1, 0x0, 0x0, 0x81}, 0x0)

1.713682584s ago: executing program 1 (id=170):
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
dup2(0xffffffffffffffff, 0xffffffffffffffff)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x105, 0x0, &(0x7f0000001700))
r1 = socket(0x0, 0x0, 0x0)
setsockopt$inet6_IPV6_HOPOPTS(r1, 0x29, 0x31, &(0x7f00000016c0)=ANY=[], 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x0, @empty}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c04", 0x3d, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
kqueue()
r2 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(0xffffffffffffffff, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r2, 0x6, 0x1, 0x0, 0x0)
connect$inet(r2, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
sendmsg$inet6_sctp(r2, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x186}], 0x1, 0x0, 0x0, 0x81}, 0x0)

1.565770331s ago: executing program 3 (id=171):
accept4(0xffffffffffffffff, 0x0, 0x0, 0x0)
ioctl$DIOCGETRULES(0xffffffffffffffff, 0xcbe04406, &(0x7f0000002500)="1a96edd80763523d70657775757adee398")
sendmsg$unix(0xffffffffffffffff, 0x0, 0x0)
mkdir(0x0, 0x0)
socket$inet_sctp(0x2, 0x1, 0x84)
bind$inet(0xffffffffffffffff, &(0x7f0000000280)={0x10, 0x2, 0x3}, 0x10)
openat$filemon(0xffffff9c, &(0x7f00000002c0), 0x0, 0x0)
connect$inet6(0xffffffffffffffff, &(0x7f0000000180)={0xfffffffffffffe3d, 0x1c, 0x2, 0x0, @local={0xfe, 0x80, '\x00', 0x0}}, 0x1c)
sendmsg$inet6_sctp(0xffffffffffffffff, &(0x7f0000000040)={&(0x7f00000000c0)=@in6={0x1c, 0x1c, 0x0, 0x0, @local={0xfe, 0x80, '\x00', 0x0}, 0x6}, 0x1c, &(0x7f0000000140)=[{0x0}, {&(0x7f0000000300)="3634fb0c67dc3430f85536d1b958467de732e3d6779a8f56730a319e83cf5a37810dfe3727bc6fec311275a86ba13dbb0cc600628e5d2cc51d3084194c11b76aa054059fb977c24ff336f5332b4c7cf50288c8b77bfcbb3b10adba45189c27844797c73a4a0b015f41479f305dbeb8cd8b2d66c15b17c16da5e60c5c52448d491be46f1a7f7998b1e7ca703ef4adf44859c3344a7ebb7d0ece986878d487e43e5cb9a7a5fb122f02868ceeac81df03a7a22b0c124d593abe37b7497c1d6dcf2d5cc484976d677f8fd83e90a3d7435789c536bbc4", 0xd4}, {&(0x7f00000001c0)="a515b693dd67aff93d7392e78d983618e1e33705f12c6daf98a3b4bd61764e993d257159af675439a163f10ddc821f6073fb", 0x32}], 0x3, 0x0, 0x0, 0x18c}, 0xd)

1.556119183s ago: executing program 3 (id=172):
getpid()
symlinkat(0x0, 0xffffffffffffffff, 0x0)
socket$inet6_sctp(0x1c, 0x1, 0x84)
ksem_trywait(0x0)
ksem_init(&(0x7f0000000000)=<r0=>0x0, 0x1)
ksem_trywait(r0)
ksem_wait(r0)
ksem_wait(r0)
ksem_destroy(r0)
ksem_init(&(0x7f0000000040), 0x80000000)
ksem_getvalue(r0, &(0x7f0000000080))
r1 = kqueue()
r2 = kqueue()
freebsd11_kevent(r1, 0x0, 0x0, &(0x7f0000000080), 0x1d, 0x0)
dup2(r2, r1)
r3 = openat$crypto(0xffffffffffffff9c, &(0x7f0000000700), 0x0, 0x0)
ioctl$CIOCGSESSION2(r3, 0xc040636a, &(0x7f00000000c0)={0x15, 0xf, 0x12, &(0x7f0000000080)="000000000000d40b0000000000000017b670", 0x0, 0x0, 0x0, 0xfdfeffff})

1.529005186s ago: executing program 2 (id=173):
setsockopt$inet_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x0, 0x51, &(0x7f0000000500)={0x18b, {{0x10, 0x2, 0x1, @multicast2}}}, 0x84)
kqueue()
kevent(0xffffffffffffffff, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
aio_write(0x0)
socket$inet6_sctp(0x1c, 0x0, 0x84)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000f80), 0x0, 0x0)
socket$inet6_tcp(0x1c, 0x1, 0x0)
getsockopt$inet_sctp_SCTP_RECVRCVINFO(0xffffffffffffffff, 0x84, 0x1f, &(0x7f0000000080), &(0x7f00000000c0)=0x4)
r0 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f0000000300)={'rack\x00'}, 0x24)
setsockopt$inet_tcp_int(r0, 0x6, 0x22, 0x0, 0x0)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x28, 0x0, 0x0)
r1 = dup(0xffffffffffffffff)
getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(r1, 0x84, 0xa, &(0x7f0000000140), &(0x7f0000000180)=0x20)
kmq_open(0x0, 0x0, 0x0, 0x0)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
sendto$inet(r2, 0x0, 0x0, 0x20181, 0x0, 0x0)

1.505356631s ago: executing program 2 (id=174):
dup2(0xffffffffffffffff, 0xffffffffffffffff)
setsockopt$inet6_IPV6_HOPOPTS(0xffffffffffffffff, 0x29, 0x31, &(0x7f00000016c0)=ANY=[@ANYBLOB="000400000000000004010004"], 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty}, 0x1c)
syz_emit_ethernet(0x42, 0x0)
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r0, 0x84, 0x28, &(0x7f0000000280)={0x1, [0x0]}, &(0x7f00000002c0)=0x8)
dup2(0xffffffffffffffff, 0xffffffffffffffff)
r1 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_int(r1, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r1, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
sendmsg$inet6_sctp(r1, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x185}], 0x1, 0x0, 0x0, 0x81}, 0x0)
rfork(0x85000)
bind$inet6(0xffffffffffffffff, &(0x7f0000000140)={0x1c, 0x1c, 0x3, 0x0, @empty}, 0x1c)

1.404985401s ago: executing program 2 (id=175):
dup2(0xffffffffffffffff, 0xffffffffffffffff)
setsockopt$inet6_IPV6_HOPOPTS(0xffffffffffffffff, 0x29, 0x31, &(0x7f00000016c0)=ANY=[@ANYBLOB="000400000000000004"], 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty, 0x10}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b341bdbfd6dc85dd7b948384873e36b7f552234749130e9", 0x73, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c5, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
socket$inet_sctp(0x2, 0x5, 0x84)
setsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x1a, &(0x7f0000000180), 0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
dup2(0xffffffffffffffff, 0xffffffffffffffff)
r1 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r1, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r1, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r1, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
sendmsg$inet6_sctp(r1, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="ca1b3b5c422ca65675e274c429d4ecb6043c5c10548af3499af18ae3b738b9b6b5428e18e8a6f70a1fad05f03388e5d7fcc796fa874a4c850fc114d59d7d095f07c3338b7653ed757e08fc8325e69831de6411138839053b1a7b32636f2e05fcbcada2375bde92ed0ac706042efe8a3bcd095a7ab57ac9ddbdc94f1545f59d15ada6e76061b7834beac7d501f26c2752d451ca96b5f61b24c88865cfe25dfb939a9fcbb9146239110e08576b3ec84e75714e740034e78dba801094faa3edb5774e0c58a39e0a1439a32fb837000000000000800108fcaeec67663ce77bfbc50affa69135c9385cd6d36ff365039a3c5a89a24e3fed7dee1a35513534f7173d892afd3b73f76a08af4f857a1f2674d9ace7647aace412d13afc1ac098fe6f86bfdef411248be5e096c4e747bfdc32a173cf9cdba48cc36819787fb0c8664abba4c4b89301778de04ce183088b220700174ca1107863fc3500214a48fd44cd24da967f302be96774a686a363da73f49978a5a3ae0f0b46ac297bb83d21274e2b92fed3890d8789", 0x186}], 0x1}, 0x0)

924.264748ms ago: executing program 0 (id=176):
setsockopt$inet_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x0, 0x51, &(0x7f0000000500)={0x18b, {{0x10, 0x2, 0x1, @multicast2}}}, 0x84)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
aio_write(0x0)
socket$inet6_sctp(0x1c, 0x0, 0x84)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000f80), 0x0, 0x0)
socket$inet6_tcp(0x1c, 0x1, 0x0)
getsockopt$inet_sctp_SCTP_RECVRCVINFO(0xffffffffffffffff, 0x84, 0x1f, &(0x7f0000000080), &(0x7f00000000c0)=0x4)
r1 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r1, 0x6, 0x2000, &(0x7f0000000300)={'rack\x00'}, 0x24)
setsockopt$inet_tcp_int(r1, 0x6, 0x22, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000240)={0x10, 0x2, 0x2, @remote={0xac, 0x14, 0x0}}, 0x10)
shutdown(r1, 0x0)
socket$inet6_sctp(0x1c, 0x0, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x28, 0x0, 0x0)
getsockopt$inet6_sctp_SCTP_MAXSEG(0xffffffffffffffff, 0x84, 0xe, 0x0, 0x0)
shutdown(0xffffffffffffffff, 0x0)
ioctl$CIOCGSESSION2(0xffffffffffffffff, 0xc030636a, 0x0)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140), &(0x7f0000000180)=0x20)
mincore(&(0x7f0000013000/0x4000)=nil, 0x4000, 0x0)
r3 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_EVENTS(r3, 0x84, 0xc, &(0x7f0000000000)={0x0, 0xd7, 0x0, 0x0, 0x0, 0xff, 0x0, 0x0, 0xe, 0x8c, 0x8}, 0xb)
recvfrom$inet(r2, 0x0, 0x0, 0x42, 0x0, 0x97c43268a56c953)

861.266794ms ago: executing program 1 (id=177):
getpid()
symlinkat(0x0, 0xffffffffffffffff, 0x0)
socket$inet6_sctp(0x1c, 0x1, 0x84)
ksem_trywait(0x0)
ksem_init(&(0x7f0000000000)=<r0=>0x0, 0x1)
ksem_trywait(r0)
ksem_wait(r0)
ksem_wait(r0)
ksem_destroy(r0)
ksem_init(&(0x7f0000000040), 0x80000000)
ksem_getvalue(r0, &(0x7f0000000080))
r1 = kqueue()
r2 = kqueue()
freebsd11_kevent(r1, 0x0, 0x0, &(0x7f0000000080), 0x1d, 0x0)
dup2(r2, 0xffffffffffffffff)
rfork(0x0)
ksem_getvalue(0x0, &(0x7f0000000200))
shmdt(0x0)
r3 = openat$crypto(0xffffffffffffff9c, &(0x7f0000000700), 0x0, 0x0)
ioctl$CIOCGSESSION2(r3, 0xc040636a, &(0x7f00000000c0)={0x15, 0xf, 0x18, &(0x7f0000000080)="000000000000d40b0000000000000017b670f5e6613250d5", 0x0, 0x0, 0x0, 0xfdfeffff})

523.215396ms ago: executing program 2 (id=179):
setsockopt$inet_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x0, 0x51, &(0x7f0000000500)={0x0, {{0x10, 0x2, 0x1, @multicast2}}}, 0x84)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
socket(0x1c, 0x1, 0x0)
aio_write(0x0)
socket$inet6_sctp(0x1c, 0x0, 0x84)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000f80), 0x0, 0x0)
socket$inet6_tcp(0x1c, 0x1, 0x0)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x28, 0x0, 0x0)
ioctl$CIOCGSESSION2(0xffffffffffffffff, 0xc030636a, 0x0)
r1 = socket$inet_sctp(0x2, 0x1, 0x84)
r2 = dup(r1)
getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(r2, 0x84, 0xa, &(0x7f0000000140), &(0x7f0000000180)=0x20)
mincore(&(0x7f0000013000/0x4000)=nil, 0x4000, 0x0)
kmq_open(0x0, 0x0, 0x0, 0x0)
recvfrom$inet(r1, 0x0, 0x0, 0x42, 0x0, 0x97c43268a56c953)

342.146236ms ago: executing program 0 (id=180):
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
r1 = dup2(0xffffffffffffffff, 0xffffffffffffffff)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, 0x0, &(0x7f0000001700))
r2 = socket(0x0, 0x0, 0x0)
setsockopt$inet6_IPV6_HOPOPTS(r2, 0x29, 0x31, 0x0, 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty}, 0x1c)
sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r3 = kqueue()
kevent(r3, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0x0, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
r4 = socket$inet_sctp(0x2, 0x5, 0x84)
r5 = socket$inet_sctp(0x2, 0x5, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r5, 0x84, 0x28, &(0x7f0000000280)={0x1, [<r6=>0x0]}, &(0x7f00000002c0)=0x8)
setsockopt$inet_sctp_SCTP_CONTEXT(r4, 0x84, 0x1a, &(0x7f0000000180)={r6}, 0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
socket$inet6_sctp(0x1c, 0x1, 0x84)
r7 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r7, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r7, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
sendmsg$inet6_sctp(r7, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x186}], 0x1, 0x0, 0x0, 0x81}, 0x0)
rfork(0x85000)

308.46366ms ago: executing program 2 (id=181):
getpid()
symlinkat(0x0, 0xffffffffffffffff, 0x0)
socket$inet6_sctp(0x1c, 0x1, 0x84)
ksem_trywait(0x0)
ksem_init(&(0x7f0000000000)=<r0=>0x0, 0x1)
ksem_trywait(r0)
ksem_wait(r0)
ksem_wait(r0)
ksem_destroy(r0)
ksem_init(&(0x7f0000000040), 0x80000000)
ksem_getvalue(r0, &(0x7f0000000080))
r1 = kqueue()
kqueue()
freebsd11_kevent(r1, 0x0, 0x0, &(0x7f0000000080), 0x1d, 0x0)
dup2(0xffffffffffffffff, r1)
rfork(0x0)
ksem_destroy(0x0)
ksem_getvalue(0x0, &(0x7f0000000200))
shmdt(0x0)
r2 = openat$crypto(0xffffffffffffff9c, &(0x7f0000000700), 0x0, 0x0)
ioctl$CIOCGSESSION2(r2, 0xc040636a, &(0x7f00000000c0)={0x15, 0xf, 0x18, &(0x7f0000000080)="000000000000d40b0000000000000017b670f5e6613250d5", 0x0, 0x0, 0x0, 0xfdfeffff})

0s ago: executing program 3 (id=178):
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, 0x0, 0x0)
r1 = dup2(0xffffffffffffffff, 0xffffffffffffffff)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, 0x0, &(0x7f0000001700))
r2 = socket(0x0, 0x0, 0x0)
setsockopt$inet6_IPV6_HOPOPTS(r2, 0x29, 0x31, 0x0, 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b", 0x5c, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r3 = kqueue()
kevent(r3, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0x0, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
r4 = socket$inet_sctp(0x2, 0x5, 0x84)
r5 = socket$inet_sctp(0x2, 0x5, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r5, 0x84, 0x28, &(0x7f0000000280)={0x1, [<r6=>0x0]}, &(0x7f00000002c0)=0x8)
setsockopt$inet_sctp_SCTP_CONTEXT(r4, 0x84, 0x1a, &(0x7f0000000180)={r6}, 0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(0xffffffffffffffff, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(0xffffffffffffffff, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
rfork(0x85000)

kernel console output (not intermixed with test programs):

Warning: Permanently added '10.128.0.133' (ED25519) to the list of known hosts.
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
SYZFAIL: failed to send rpc
fd=3 want=6520 sent=0 n=-1 (errno 32: Broken pipe)
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb000
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb000
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800


FreeBSD/amd64if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
 (ci-freebsd-maiif_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
n-6.c.syzkaller.if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
internal) (ttyu0)

login: Aug  1 03:19:34 ci-freebsd-main-6 dhclient[823]: Interface tap0 is down, dhclient exiting
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
Aug  1 03:19:34 ci-freebsd-main-6 dhclient[823]: connection closed
Aug  1 03:19:34 ci-freebsd-main-6 dhclient[823]: exiting.
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb000
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb000
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb000
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000