last executing test programs:

12.092076888s ago: executing program 0 (id=115):
setsockopt$inet_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x0, 0x51, &(0x7f0000000500)={0x0, {{0x10, 0x2, 0x1, @multicast2}}}, 0x84)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
r1 = socket(0x1c, 0x1, 0x0)
aio_write(0x0)
socket$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$inet6_sctp_SCTP_MAXSEG(0xffffffffffffffff, 0x84, 0xe, 0x0, 0x0)
shutdown(0xffffffffffffffff, 0x0)
socket$inet_sctp(0x2, 0x0, 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)

11.421664156s ago: executing program 3 (id=119):
socket$inet_sctp(0x2, 0x0, 0x84)
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x105, &(0x7f0000000180)={0x1, [0x0]}, &(0x7f0000001700)=0xe)
getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xb, 0x0, &(0x7f0000000280))
r1 = socket(0x0, 0x1, 0x0)
bind$inet6(r1, &(0x7f0000000140)={0x1c, 0x1c, 0x3, 0x0, @empty}, 0x1c)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r1, 0x6, 0x2000, &(0x7f00000001c0)={'rack\x00', 0x3d6}, 0x24)
connect$inet6(r1, &(0x7f0000000180)={0x1c, 0x1c, 0x3, 0x0, @empty}, 0x1c)
sendto$inet(r1, &(0x7f0000000200)="0e", 0xff66, 0x0, 0x0, 0x0)
sendmsg$unix(0xffffffffffffffff, &(0x7f0000001440)={0x0, 0x0, &(0x7f00000003c0)=[{&(0x7f00000002c0)="eb62a11d73a793e8b2d5c5ad53e1e4d6a784d26558f10e6b2a8d8aa2429ebfaeb664fbbc98fef11a8a4df3a1d45de1d393d9228d57c5d8a6d55631a77d0dc72dda4cf8cc18e2199d3b1856db5bcfc8197c0d001fd93f38f966c1cf89e01dcd651b01e641309772a1e03f68211e18f0e57978f0243fe1128461fda2faffffffffffffff9165f6a6d1480ee1a98eb469f423b204e69d75ff667e7509e08dfba4de0e1ee8eb3ce3277705e8396d49f069d4", 0xb0}, {&(0x7f0000000840)="faccbfc1213b7245c968e88fed57f69d4ed18b0fc343422fdc7ab9d92113373e90fbacef5551af86589dbe25e1d8baecceb5b8617b518f444d94092562c844048b841e675aa82565cf0446bc8b70fdd519bf853b116f8015ef79", 0x5a}], 0x2, 0x0, 0x100}, 0x20180)
sendmsg$inet6_sctp(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000001400)=@in6={0x1c, 0x1c, 0x0, 0x0, @rand_addr="75a9729bfbfa247ef9149f4bdd6debe9"}, 0x1c, &(0x7f0000001380)=[{&(0x7f0000000040)='S', 0x1}], 0x1, 0x0, 0xfffffe8d}, 0x0)
setsockopt$inet_tcp_int(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0)
socket$inet_sctp(0x2, 0x0, 0x84)
socket$inet_tcp(0x2, 0x1, 0x0)

11.338097844s ago: executing program 3 (id=120):
r0 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x10000000)
ioctl$DIOCGETRULES(0xffffffffffffffff, 0xcbe04406, &(0x7f0000002500)="1a96edd80763523d70657775757adee398")
sendmsg$unix(0xffffffffffffffff, 0x0, 0x0)
mkdir(0x0, 0x0)
r1 = socket$inet_sctp(0x2, 0x1, 0x84)
bind$inet(r1, &(0x7f0000000280)={0x10, 0x2, 0x3}, 0x10)
openat$filemon(0xffffff9c, &(0x7f00000002c0), 0x0, 0x0)
freebsd10_pipe(0x0)
open(&(0x7f0000000480)='./file0\x00', 0x0, 0xe)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
sendto$inet(r0, 0x0, 0x0, 0x100, 0x0, 0x0)
getsockopt$inet_sctp_SCTP_PEER_ADDR_THLDS(r2, 0x84, 0x23, &(0x7f0000000140)={@in6={{0x1c, 0x1c, 0x1, 0x0, @ipv4={'\x00', '\xff\xff', @rand_addr=0x76}, 0x486}}, 0x0, 0x9a, 0x49c5}, 0x0)
profil(0x0, 0x0, 0x0, 0x0)
r3 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_INITMSG(r3, 0x84, 0x3, &(0x7f0000000340)={0x8003}, 0x8)
rfork(0x7010)
sync()
open(0x0, 0x0, 0x0)
socket$inet_sctp(0x2, 0x5, 0x84)
r4 = socket$inet6_sctp(0x1c, 0x5, 0x84)
bind(r4, &(0x7f0000000000)=@in6={0x1c, 0x1c, 0x2, 0x0, @empty}, 0x1c)
connect$inet6(r4, &(0x7f0000000180)={0xfffffffffffffe3d, 0x1c, 0x2, 0x0, @local={0xfe, 0x80, '\x00', 0x0}}, 0x1c)
sendmsg$inet6_sctp(r4, &(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)
connect$inet(r3, &(0x7f0000000140)={0x10, 0x2, 0x3, @rand_addr=0xff}, 0x10)

11.247565124s ago: executing program 0 (id=121):
ioctl$DIOCGETRULES(0xffffffffffffffff, 0xcbe04406, &(0x7f0000002500)="1a96edd80763523d70657775757adee398")
sendmsg$unix(0xffffffffffffffff, 0x0, 0x0)
mkdir(0x0, 0x0)
openat$filemon(0xffffff9c, &(0x7f00000002c0), 0x0, 0x0)
freebsd10_pipe(0x0)
open(&(0x7f0000000480)='./file0\x00', 0x0, 0xe)
r0 = socket$inet_sctp(0x2, 0x1, 0x84)
sendmsg$inet6_sctp(0xffffffffffffffff, &(0x7f0000000040)={&(0x7f00000000c0)=@in6={0x1c, 0x1c, 0x0, 0x0, @local={0xfe, 0x80, '\x00', 0x0}, 0x6}, 0x1c, &(0x7f0000000140)=[{0x0}, {&(0x7f0000000300)="3634fb0c67dc3430f85536d1b958467de732e3d6779a8f56730a319e83cf5a37810dfe3727bc6fec311275a86ba13dbb0cc600628e5d2cc51d3084194c11b76aa054059fb977c24ff336f5332b4c7cf50288c8b77bfcbb3b10adba45189c27844797c73a4a0b015f41479f305dbeb8cd8b2d66c15b17c16da5e60c5c52448d491be46f1a7f7998b1e7ca703ef4adf44859c3344a7ebb7d0ece986878d487e43e5cb9a7a5fb122f02868ceeac81df03a7a22b0c124d593abe37b7497c1d6dcf2d5cc484976d677f", 0xc7}, {&(0x7f00000001c0)="a515b693dd67aff93d7392e78d983618e1e33705f12c6daf98a3b4bd61764e993d257159af675439a163f10ddc821f6073fb", 0x32}], 0x3, 0x0, 0x0, 0x18c}, 0xd)
connect$inet(r0, &(0x7f0000000140)={0x10, 0x2, 0x3, @rand_addr=0xff}, 0x10)

10.648332005s ago: executing program 1 (id=123):
ioctl$DIOCGETRULES(0xffffffffffffffff, 0xcbe04406, &(0x7f0000002500)="1a96edd80763523d70")
sendmsg$unix(0xffffffffffffffff, 0x0, 0x0)
mkdir(0x0, 0x0)
r0 = socket$inet_sctp(0x2, 0x1, 0x84)
bind$inet(r0, &(0x7f0000000280)={0x10, 0x2, 0x3}, 0x10)

10.643126788s ago: executing program 1 (id=124):
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, &(0x7f00000016c0)=ANY=[@ANYBLOB], 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty, 0x10}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b341bdbfd6dc85dd7b948384873e36b7f552234749130e94c3e137fe507ad", 0x7a, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r3 = kqueue()
kevent(r3, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c5, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
socket(0x1c, 0x1, 0x0)
syz_emit_ethernet(0x42, 0x0)
r4 = socket$inet_sctp(0x2, 0x5, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x28, &(0x7f0000000280)={0x1, [0x0]}, &(0x7f00000002c0)=0x8)
setsockopt$inet_sctp_SCTP_CONTEXT(r4, 0x84, 0x1a, &(0x7f0000000180), 0x8)
r5 = socket$inet6_sctp(0x1c, 0x1, 0x84)
dup2(r5, 0xffffffffffffffff)
r6 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r6, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r6, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r6, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
sendmsg$inet6_sctp(r6, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x125}], 0x1, 0x0, 0x0, 0x81}, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(0xffffffffffffffff, 0x6, 0x2000, &(0x7f0000000200)={'rack\x00'}, 0x24)
rfork(0x85000)

10.442792779s ago: executing program 1 (id=127):
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, 0x0, &(0x7f00000002c0))
setsockopt$inet_sctp_SCTP_CONTEXT(r4, 0x84, 0x1a, &(0x7f0000000180), 0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
socket$inet6_sctp(0x1c, 0x1, 0x84)
r6 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r6, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r6, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r6, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
rfork(0x85000)

10.433421425s ago: executing program 3 (id=128):
socket$inet_sctp(0x2, 0x0, 0x84)
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x105, &(0x7f0000000180)={0x1, [0x0]}, &(0x7f0000001700)=0xe)
getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xb, 0x0, &(0x7f0000000280))
r1 = socket(0x1c, 0x0, 0x0)
bind$inet6(r1, &(0x7f0000000140)={0x1c, 0x1c, 0x3, 0x0, @empty}, 0x1c)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r1, 0x6, 0x2000, &(0x7f00000001c0)={'rack\x00', 0x3d6}, 0x24)
connect$inet6(r1, &(0x7f0000000180)={0x1c, 0x1c, 0x3, 0x0, @empty}, 0x1c)
sendto$inet(r1, &(0x7f0000000200)="0e", 0xff66, 0x0, 0x0, 0x0)
sendmsg$unix(0xffffffffffffffff, &(0x7f0000001440)={0x0, 0x0, &(0x7f00000003c0)=[{&(0x7f00000002c0)="eb62a11d73a793e8b2d5c5ad53e1e4d6a784d26558f10e6b2a8d8aa2429ebfaeb664fbbc98fef11a8a4df3a1d45de1d393d9228d57c5d8a6d55631a77d0dc72dda4cf8cc18e2199d3b1856db5bcfc8197c0d001fd93f38f966c1cf89e01dcd651b01e641309772a1e03f68211e18f0e57978f0243fe1128461fda2faffffffffffffff9165f6a6d1480ee1a98eb469f423b204e69d75ff667e7509e08dfba4de0e1ee8eb3ce3277705e8396d49f069d4", 0xb0}, {&(0x7f0000000840)="faccbfc1213b7245c968e88fed57f69d4ed18b0fc343422fdc7ab9d92113373e90fbacef5551af86589dbe25e1d8baecceb5b8617b518f444d94092562c844048b841e675aa82565cf0446bc8b70fdd519bf853b116f8015ef79", 0x5a}], 0x2, 0x0, 0x100}, 0x20180)
sendmsg$inet6_sctp(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000001400)=@in6={0x1c, 0x1c, 0x0, 0x0, @rand_addr="75a9729bfbfa247ef9149f4bdd6debe9"}, 0x1c, &(0x7f0000001380)=[{&(0x7f0000000040)='S', 0x1}], 0x1, 0x0, 0xfffffe8d}, 0x0)
setsockopt$inet_tcp_int(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0)
socket$inet_sctp(0x2, 0x0, 0x84)
socket$inet_tcp(0x2, 0x1, 0x0)

10.403473275s ago: executing program 0 (id=129):
setsockopt$inet_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x0, 0x51, &(0x7f0000000500)={0x0, {{0x10, 0x2, 0x1, @multicast2}}}, 0x84)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
r1 = socket(0x1c, 0x1, 0x0)
aio_write(0x0)
socket$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$inet6_sctp_SCTP_MAXSEG(0xffffffffffffffff, 0x84, 0xe, 0x0, 0x0)
shutdown(0xffffffffffffffff, 0x0)
socket$inet_sctp(0x2, 0x0, 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)

9.951049195s ago: executing program 3 (id=130):
getpid()
socket$inet6_sctp(0x1c, 0x0, 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))
kqueue()
kqueue()

9.625446544s ago: executing program 1 (id=131):
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, &(0x7f00000016c0)=ANY=[@ANYBLOB="000400000000000004010004"], 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty, 0x10}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b341bdbfd6dc85dd7b948384873e36b", 0x6b, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r3 = kqueue()
kevent(r3, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c5, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
socket(0x1c, 0x1, 0x0)
syz_emit_ethernet(0x42, 0x0)
r4 = socket$inet_sctp(0x2, 0x5, 0x84)
r5 = socket$inet_sctp(0x2, 0x0, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r5, 0x84, 0x28, &(0x7f0000000280)={0x1, [0x0]}, &(0x7f00000002c0)=0x8)
setsockopt$inet_sctp_SCTP_CONTEXT(r4, 0x84, 0x1a, &(0x7f0000000180), 0x8)
r6 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r6, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r6, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r6, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
sendmsg$inet6_sctp(r6, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x125}], 0x1, 0x0, 0x0, 0x81}, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(0xffffffffffffffff, 0x6, 0x2000, &(0x7f0000000200)={'rack\x00'}, 0x24)
rfork(0x85000)

9.563560064s ago: executing program 2 (id=132):
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, [0x0]}, &(0x7f00000002c0)=0x8)
setsockopt$inet_sctp_SCTP_CONTEXT(r4, 0x84, 0x1a, 0x0, 0x0)
socket$inet6_sctp(0x1c, 0x1, 0x84)
r6 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r6, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r6, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r6, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)

9.512184166s ago: executing program 0 (id=133):
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$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r3 = kqueue()
kevent(r3, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0x0, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
r4 = socket$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)

1.687543611s ago: executing program 2 (id=134):
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$inet6_IPV6_HOPOPTS(r1, 0x29, 0x31, 0x0, 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x0, @empty}, 0x1c)
sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
kevent(0xffffffffffffffff, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0x0, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
setsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x1a, &(0x7f0000000180), 0x8)
r2 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r2, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r2, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
sendmsg$inet6_sctp(r2, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x186}], 0x1, 0x0, 0x0, 0x81}, 0x0)
rfork(0x85000)

1.687086763s ago: executing program 0 (id=135):
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, &(0x7f00000016c0)=ANY=[@ANYBLOB="000400000000000004010004"], 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b341bdbfd6dc85dd7b948384873e36b7f552234749130e94c3e137fe507ad", 0x7a, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r3 = kqueue()
kevent(r3, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c5, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
socket(0x1c, 0x1, 0x0)
syz_emit_ethernet(0x42, 0x0)
r4 = socket$inet_sctp(0x2, 0x5, 0x84)
r5 = socket$inet_sctp(0x2, 0x0, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r5, 0x84, 0x28, &(0x7f0000000280)={0x1, [0x0]}, &(0x7f00000002c0)=0x8)
setsockopt$inet_sctp_SCTP_CONTEXT(r4, 0x84, 0x1a, &(0x7f0000000180), 0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
r6 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r6, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r6, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r6, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
sendmsg$inet6_sctp(r6, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x125}], 0x1, 0x0, 0x0, 0x81}, 0x0)
rfork(0x85000)

1.686845107s ago: executing program 3 (id=136):
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
setsockopt$inet6_IPV6_HOPOPTS(0xffffffffffffffff, 0x29, 0x31, 0x0, 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty}, 0x1c)
kevent(0xffffffffffffffff, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0x0, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
setsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x1a, &(0x7f0000000180), 0x8)
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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", 0x125}], 0x1, 0x0, 0x0, 0x81}, 0x0)
rfork(0x85000)

1.648981267s ago: executing program 1 (id=137):
fcntl$lock(0xffffffffffffffff, 0xb, 0x0)
socket$inet6_sctp(0x1c, 0x5, 0x84)
r0 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f00000002c0)={'bbr\x00'}, 0x24)
bind$inet(0xffffffffffffffff, &(0x7f0000000280)={0x10, 0x2, 0x3}, 0x10)
socket$inet_sctp(0x2, 0x0, 0x84)
connect$inet(0xffffffffffffffff, 0x0, 0x0)
procctl$PROC_REAP_KILL(0x0, 0x0, 0x6, &(0x7f0000000180)={0x12, 0x0, 0xffffffffffffffff})
syz_emit_ethernet(0x0, 0x0)
getsockopt$inet6_sctp_SCTP_ENABLE_STREAM_RESET(0xffffffffffffffff, 0x84, 0x900, &(0x7f0000000000), &(0x7f0000000200)=0x8)
r1 = socket$inet6_sctp(0x1c, 0x5, 0x84)
sendmsg$inet6_sctp(r1, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="9d00000084000000020000000100000000000300001b"], 0xaf, 0x100}, 0x0)

1.648428123s ago: executing program 2 (id=138):
socket$inet_sctp(0x2, 0x0, 0x84)
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x105, &(0x7f0000000180)={0x1, [0x0]}, &(0x7f0000001700)=0xe)
getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xb, 0x0, &(0x7f0000000280))
r1 = socket(0x1c, 0x0, 0x0)
bind$inet6(r1, &(0x7f0000000140)={0x1c, 0x1c, 0x3, 0x0, @empty}, 0x1c)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r1, 0x6, 0x2000, &(0x7f00000001c0)={'rack\x00', 0x3d6}, 0x24)
connect$inet6(r1, &(0x7f0000000180)={0x1c, 0x1c, 0x3, 0x0, @empty}, 0x1c)
sendto$inet(r1, &(0x7f0000000200)="0e", 0xff66, 0x0, 0x0, 0x0)
sendmsg$unix(0xffffffffffffffff, &(0x7f0000001440)={0x0, 0x0, &(0x7f00000003c0)=[{&(0x7f00000002c0)="eb62a11d73a793e8b2d5c5ad53e1e4d6a784d26558f10e6b2a8d8aa2429ebfaeb664fbbc98fef11a8a4df3a1d45de1d393d9228d57c5d8a6d55631a77d0dc72dda4cf8cc18e2199d3b1856db5bcfc8197c0d001fd93f38f966c1cf89e01dcd651b01e641309772a1e03f68211e18f0e57978f0243fe1128461fda2faffffffffffffff9165f6a6d1480ee1a98eb469f423b204e69d75ff667e7509e08dfba4de0e1ee8eb3ce3277705e8396d49f069d4", 0xb0}, {&(0x7f0000000840)="faccbfc1213b7245c968e88fed57f69d4ed18b0fc343422fdc7ab9d92113373e90fbacef5551af86589dbe25e1d8baecceb5b8617b518f444d94092562c844048b841e675aa82565cf0446bc8b70fdd519bf853b116f8015ef79", 0x5a}], 0x2, 0x0, 0x100}, 0x20180)
sendmsg$inet6_sctp(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000001400)=@in6={0x1c, 0x1c, 0x0, 0x0, @rand_addr="75a9729bfbfa247ef9149f4bdd6debe9"}, 0x1c, &(0x7f0000001380)=[{&(0x7f0000000040)='S', 0x1}], 0x1, 0x0, 0xfffffe8d}, 0x0)
setsockopt$inet_tcp_int(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0)
socket$inet_sctp(0x2, 0x0, 0x84)
socket$inet_tcp(0x2, 0x1, 0x0)

1.582082904s ago: executing program 2 (id=139):
r0 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x10000000)
mkdir(0x0, 0x0)
r1 = socket$inet_sctp(0x2, 0x1, 0x84)
bind$inet(r1, &(0x7f0000000280)={0x10, 0x2, 0x3}, 0x10)
freebsd10_pipe(0x0)
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)
sync()
open(0x0, 0x0, 0x0)
bind(0xffffffffffffffff, &(0x7f0000000000)=@in6={0x1c, 0x1c, 0x2, 0x0, @empty}, 0x1c)
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)="3634fb0c67dc3430f85536d1b958467de732e3d6779a8f56730a319e83cf5a37810dfe3727bc6fec311275a86ba13dbb0cc600628e5d2cc51d3084194c11b76aa054059fb977c24ff336f5332b4c7cf50288c8b77bfcbb3b10adba45189c27844797c73a4a0b015f4147", 0x6a}, {&(0x7f00000001c0)="a515b693dd67aff93d7392e78d983618e1e33705f12c6daf98a3b4bd61764e993d257159af675439a163f10ddc821f6073fb", 0x32}], 0x3, 0x0, 0x0, 0x18c}, 0xd)
connect$inet(r2, &(0x7f0000000140)={0x10, 0x2, 0x3, @rand_addr=0xff}, 0x10)

733.083995ms ago: executing program 0 (id=140):
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, &(0x7f00000016c0)=ANY=[@ANYBLOB], 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty, 0x10}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b341bdbfd6dc85dd7b948384873e36b7f552234749130e94c3e137fe507ad", 0x7a, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r3 = kqueue()
kevent(r3, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c5, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
socket(0x1c, 0x1, 0x0)
syz_emit_ethernet(0x42, 0x0)
r4 = socket$inet_sctp(0x2, 0x5, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x28, &(0x7f0000000280)={0x1, [0x0]}, &(0x7f00000002c0)=0x8)
setsockopt$inet_sctp_SCTP_CONTEXT(r4, 0x84, 0x1a, &(0x7f0000000180), 0x8)
r5 = socket$inet6_sctp(0x1c, 0x1, 0x84)
dup2(r5, 0xffffffffffffffff)
r6 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r6, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r6, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r6, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
sendmsg$inet6_sctp(r6, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x125}], 0x1, 0x0, 0x0, 0x81}, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(0xffffffffffffffff, 0x6, 0x2000, &(0x7f0000000200)={'rack\x00'}, 0x24)
rfork(0x85000)

732.642951ms ago: executing program 1 (id=141):
setsockopt$inet_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x0, 0x51, &(0x7f0000000500)={0x0, {{0x10, 0x2, 0x1, @multicast2}}}, 0x84)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
r1 = socket(0x1c, 0x1, 0x0)
aio_write(0x0)
socket$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$inet6_sctp_SCTP_MAXSEG(0xffffffffffffffff, 0x84, 0xe, 0x0, 0x0)
shutdown(0xffffffffffffffff, 0x0)
socket$inet_sctp(0x2, 0x0, 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)

732.216178ms ago: executing program 2 (id=142):
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, &(0x7f00000016c0)=ANY=[@ANYBLOB="000400000000"], 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty, 0x10}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b341bdbfd6dc85dd7b948384873e36b7f552234749130e94c3e137fe507ad", 0x7a, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r3 = kqueue()
kevent(r3, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c5, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
socket(0x1c, 0x1, 0x0)
syz_emit_ethernet(0x42, 0x0)
r4 = socket$inet_sctp(0x2, 0x5, 0x84)
socket$inet_sctp(0x2, 0x0, 0x84)
setsockopt$inet_sctp_SCTP_CONTEXT(r4, 0x84, 0x1a, &(0x7f0000000180), 0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
connect$inet(0xffffffffffffffff, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)
sendmsg$inet6_sctp(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x125}], 0x1, 0x0, 0x0, 0x81}, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(0xffffffffffffffff, 0x6, 0x2000, &(0x7f0000000200)={'rack\x00'}, 0x24)
rfork(0x85000)

731.702435ms ago: executing program 3 (id=143):
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$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r3 = kqueue()
kevent(r3, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0x0, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
r4 = socket$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)

0s ago: executing program 2 (id=144):
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, [0x0]}, &(0x7f00000002c0)=0x8)
setsockopt$inet_sctp_SCTP_CONTEXT(r4, 0x84, 0x1a, 0x0, 0x0)
socket$inet6_sctp(0x1c, 0x1, 0x84)
r6 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r6, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
setsockopt$inet_tcp_int(r6, 0x6, 0x1, &(0x7f0000000040)=0x7, 0x4)
connect$inet(r6, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)

kernel console output (not intermixed with test programs):

Warning: Permanently added '10.128.1.124' (ED25519) to the list of known hosts.
Expensive callout(9) function: 0xffffffff8142f140(0xfffffe006dad3640) 0.020279863 s
Expensive callout(9) function: 0xffffffff8142f140(0xfffffe006dad36e0) 0.043505019 s
Expensive callout(9) function: 0xffffffff8142f140(0xfffffe006dad35a0) 0.088920602 s
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
SYZFAIL: failed to send rpc
fd=3 want=2112 sent=0 n=-1 (errno 32: Broken pipe)
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
Aug  1 05:50:37 ci-freebsd-main-6 dhclient[822]: receive_packet failed on tap0: Device not configured
Aug  1 05:50:37 ci-freebsd-main-6 dhclienif_delmulti_locked: detaching ifnet instance 0xfffffe00079fb000
t[822]: ioctl(SIif_delmulti_locked: detaching ifnet instance 0xfffffe00079fb000
OCGIFFLAGS) on tif_delmulti_locked: detaching ifnet instance 0xfffffe00079fb000
ap0: Operation not permitted
Aug  1 05:50:37 ci-freebsd-main-6 dhclient[822]: Interface tap0 no longer appears if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
valid.
Aug  1 0if_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
5:50:37 ci-freebif_delmulti_locked: detaching ifnet instance 0xfffffe0058546000
sd-main-6 dhclient[822]: No live interfaces to poll on - exiting.
Aug  1 05:50:37 ci-freebsd-main-6 dhclient[822]: exiting.
Aug  1 05:50:37 ci-freebsd-main-6 dhclient[822]: connection closed
Aug  1 05:50:3if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
7 ci-freebsd-maiif_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
n-6 dhclient[822if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
]: exiting.
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fa800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fa800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fa800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fa800
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 0xfffffe00079fb000
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb000
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb000
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fa800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fa800