last executing test programs:

6.069586701s ago: executing program 1 (id=2):
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$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc2", 0x45, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
kqueue()
kevent(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
r3 = socket$inet_sctp(0x2, 0x5, 0x84)
r4 = socket$inet_sctp(0x2, 0x5, 0x84)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r4, 0x84, 0x28, &(0x7f0000000280), &(0x7f00000002c0)=0x4)
setsockopt$inet_sctp_SCTP_CONTEXT(r3, 0x84, 0x1a, &(0x7f0000000180), 0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
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)
sendmsg$inet6_sctp(r5, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x186}], 0x1, 0x0, 0x0, 0x81}, 0x0)

5.166235533s ago: executing program 1 (id=12):
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, 0x0, 0x84)
r5 = dup(r4)
getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(r5, 0x84, 0xa, 0x0, &(0x7f0000000180))
mincore(&(0x7f0000013000/0x4000)=nil, 0x4000, 0x0)
kmq_open(0x0, 0x0, 0x0, 0x0)
r6 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_EVENTS(r6, 0x84, 0xc, &(0x7f0000000000)={0x0, 0xd7, 0x0, 0x0, 0x0, 0xff, 0x0, 0x0, 0xe, 0x8c, 0x8}, 0xb)
sendto$inet(r1, 0x0, 0x0, 0x101, 0x0, 0x0)

4.982139493s ago: executing program 2 (id=14):
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a2", 0x5b, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r1 = kqueue()
kevent(r1, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0x0, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
r2 = socket$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]}, 0x0)
setsockopt$inet_sctp_SCTP_CONTEXT(r2, 0x84, 0x1a, &(0x7f0000000180)={r4}, 0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
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)
sendmsg$inet6_sctp(r5, 0x0, 0x0)
rfork(0x85000)

4.359119377s ago: executing program 3 (id=16):
dup2(0xffffffffffffffff, 0xffffffffffffffff)
socket(0x0, 0x0, 0x0)
r0 = socket$inet6_sctp(0x1c, 0x1, 0x84)
bind(r0, &(0x7f0000000000)=@in6={0x1c, 0x1c, 0x3, 0x0, @loopback}, 0x1c)
connect$inet6(r0, &(0x7f0000000080)={0x1c, 0x1c, 0x3, 0x0, @loopback}, 0x1c)
r1 = dup(r0)
sendto$inet6(r1, 0x0, 0x0, 0x0, 0x0, 0x0)
rfork(0x85000)

4.212114083s ago: executing program 3 (id=17):
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, 0x0, 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000080)=@in6={0x1c, 0x1c, 0x3, 0x800000, @empty}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b", 0x5c, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r2 = kqueue()
kevent(r2, 0x0, 0x0, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
r3 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r3, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
connect$inet(r3, 0x0, 0x0)
rfork(0x85000)

3.607949196s ago: executing program 3 (id=18):
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$filemon(0xffffff9c, &(0x7f00000002c0), 0x0, 0x0)
freebsd10_pipe(0x0)
open(&(0x7f0000000480)='./file0\x00', 0x0, 0xe)
sendto$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$inet_sctp_SCTP_INITMSG(r2, 0x84, 0x3, 0x0, 0x0)
rfork(0x7010)
sync()
open(0x0, 0x0, 0x0)
r3 = socket$inet_sctp(0x2, 0x5, 0x84)
setsockopt$inet_sctp_SCTP_CONNECT_X(r3, 0x84, 0x8007, 0x0, &(0x7f00000002c0))
r4 = socket$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)=[{&(0x7f0000000300)="3634fb0c67dc3430f85536d1b958467de732e3d6779a8f56730a319e83cf5a37810dfe3727bc6fec311275a86ba13dbb0cc600628e5d2cc51d3084194c11b76aa054059fb977c24ff336f5332b4c7cf50288c8b77bfcbb3b10adba45189c27844797c73a4a0b015f41479f305dbeb8cd8b2d66c15b17c16da5e60c5c52448d491be46f1a7f7998b1e7ca703ef4adf44859c3344a7ebb7d0ece986878d487e43e5cb9a7a5fb122f02868ceeac81df03a7a22b0c124d593abe37b7497c1d6dcf2d5cc484976d677f", 0xc7}, {&(0x7f00000001c0)="a515b693dd67aff93d7392e78d983618e1e33705f12c6daf98a3b4bd61764e993d257159af675439a163f10ddc821f6073fb", 0x32}], 0x2, 0x0, 0x0, 0x18c}, 0xd)
connect$inet(r2, &(0x7f0000000140)={0x10, 0x2, 0x3, @rand_addr=0xff}, 0x10)

3.051399531s ago: executing program 2 (id=20):
r0 = socket$inet6_sctp(0x1c, 0x0, 0x84)
bind(r0, &(0x7f0000000000)=@in6={0x1c, 0x1c, 0x3, 0x0, @loopback}, 0x1c)

2.989313063s ago: executing program 2 (id=21):
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x0, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
socket$inet_sctp(0x2, 0x0, 0x84)
kmq_open(0x0, 0x0, 0x0, 0x0)

2.881564793s ago: executing program 2 (id=22):
connect$inet(0xffffffffffffffff, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
r0 = socket$inet6_sctp(0x1c, 0x1, 0x84)
bind(r0, &(0x7f0000000000)=@in6={0x1c, 0x1c, 0x3, 0x0, @loopback}, 0x1c)
connect$inet6(r0, &(0x7f0000000080)={0x1c, 0x1c, 0x3, 0x0, @loopback}, 0x1c)
r1 = dup(r0)
sendto$inet6(r1, &(0x7f00000001c0)="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", 0x797, 0x0, 0x0, 0x0)
rfork(0x85000)

2.862174556s ago: executing program 2 (id=23):
setsockopt$inet_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x0, 0x51, &(0x7f0000000500)={0x18b, {{0x10, 0x2, 0x1, @multicast2}}}, 0x84)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
socket(0x1c, 0x1, 0x0)
openat$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$inet_tcp_TCP_FUNCTION_BLK(r1, 0x6, 0x2000, &(0x7f0000000300)={'rack\x00'}, 0x24)
connect$inet(r1, &(0x7f0000000240)={0x10, 0x2, 0x2, @remote={0xac, 0x14, 0x0}}, 0x10)

2.832410983s ago: executing program 0 (id=24):
r0 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x10000000)
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$inet_sctp_SCTP_PEER_ADDR_THLDS(r2, 0x84, 0x23, &(0x7f0000000140)={@in6={{0x1c, 0x1c, 0x1, 0x0, @ipv4={'\x00', '\xff\xff', @rand_addr=0x76}, 0x486}}, 0x0, 0x9a, 0x49c5}, &(0x7f0000000000)=0x90)
profil(0x0, 0x0, 0x0, 0x0)
r3 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_INITMSG(r3, 0x84, 0x3, 0x0, 0x0)
rfork(0x7010)
sync()
open(0x0, 0x0, 0x0)
setsockopt$inet_sctp_SCTP_CONNECT_X(0xffffffffffffffff, 0x84, 0x8007, 0x0, &(0x7f00000002c0))
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}, 0x10)

2.82400382s ago: executing program 1 (id=25):
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
setsockopt$inet6_IPV6_HOPOPTS(0xffffffffffffffff, 0x29, 0x31, 0x0, 0x28)
sendto(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000200)=@in6={0x1c, 0x1c, 0x3, 0x6, @rand_addr="526417c240430a290d7c6b824c7f1af2", 0x8}, 0x1c)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600), 0x0, 0x100, &(0x7f0000000080)={0x1c, 0x1c, 0x3, 0x0, @loopback, 0x400000}, 0x1c)
kevent(0xffffffffffffffff, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c5, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
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)
ioctl$BIOCIMMEDIATE(0xffffffffffffffff, 0x80044270, &(0x7f0000000000)=0xfff)
sendmsg$inet6_sctp(r1, &(0x7f00000002c0)={&(0x7f0000000280)=@in={0x10, 0x2, 0x1, @multicast2}, 0x10, &(0x7f0000000100)=[{&(0x7f00000005c0)="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", 0x186}], 0x1, 0x0, 0x0, 0x81}, 0x0)
ioctl$CIOCGSESSION2(0xffffffffffffffff, 0xc040636a, &(0x7f00000005c0)={0x16, 0x1d, 0x48d, &(0x7f0000001380)="5419b6f23a395a224dbc3ffef687b231c7dc46e70458f96ece3aa7ecadad6e424acd7751027f72ae8afb8336da51b15804fd7d2857dde022c07d0d6d85ccd666e7c42d715635ee20241e474db94ada90dc2136ac9c8e394bc7dc2392cf153cbd909627904eda31fd22f44546b22e90955f0d94fb6d8a1300bcf11c73d41cd895a7576f5e14c1824f8b0f9e9f5ddd0f16a899a599f7719820a1f965d4bd8a0dddb3c71967ad05df387b0125fed852cd1978141a42daffc46e89680e7f1920e9d0af66195728acb1a2659466fbddf9f3839488ab736a0c11d61eb56c30751bab9fe1db36919ba48439621fd909667906e4d1ecb935c690b4c46937ff9dea2ecbc999bf21f11232df6100f9df5186185a155c3716a11385726dd663d5dea5d57f2b1b876d96e9cc28c1254e1c6dc4b00349caab3ec5db8189b8b757effc125cf87b033b3886ae5f8496f171d31ae28f18ddb46bec5cdd65929bc17aff4d7253419a2374af0dec322fe51811b085d1021205db30c801b453f4d35bffe668850b635ace3b4f591b9e595c4db7d889c9710d2459609a082efdee165a551071193047d5576242c86f42e08f104c08fc41f34be91047ef4aff4eb6c81d4966bc0d9ecfb4bfb0189144facd2df133e4a974b74012545a59f0376f889999fe9fd22de9fe4ed1a82ead790cad862f39202f157795cd840f8f3dd19b05d0f10ff7b5e8d4834f21582c0bbfaade9b594cccf73e1cf55fac406b21cb7e495c8f4acde027388ada893f7b527ea5ea5a30b80821ed0043b32915682571eda2f6c114ffe71abb8cd4ee020d7ce95b004a9631259e8853274dc250d3ab357b69d6afdd9667e63c396df76b5e26953887df570179f6d4248409776a5bb366e6a1fe20c0fd5e3340445dd35382cb8126017ecfde35c0b9366368574c63a636fcc11ada5b255d559fd8f5e887d1f13d1d1e1335a1a2cabcf3c123f78d0edf57a98da76b34dfd8127eb1dc7f37d73d25304bd8bd628f18eb9d332ec253ac851c57fb8a1f0da6b8c54c4ce86ac4b86eb2babf13a9379efcb03cffa6e87742261f112c4e7f940ddeba235448949e773c42b0d380d2170ecf07b6eefb643b9b060a8319670468cce51827eca5c6c59794ce7c20aff0f645aad91bbb1e6334b2e55f907b09109de87d3c98a0258f60a604caf52705159b1e6560209f5dc0a737d40d9e20698196ce10cc541dc00ce341e5de14dc69cf8f2f1d7f415196a40e0c71ac07a55d422ce01ecc5350a090e40045808ea7c64d3d2ec10e37890f0912185d4c0adeb8d6bedb471cb1b166a390d31206bb93b38cae7608ed6e7d8d60d4e3af56cfb8e08e34ee151dfe8ee497a69bfb12868ea6b81cbab0da24848c0c48398b901903a6d8a3ca14234ef8026a11acc82476b44842f7977029d371a64804cce66ca1d01a69b9a9b72df71257092a40b16800a03d9b87904fd1050c659084e9768bf879f0ca38d41b6ed76badac7ccddf01d8b00a9be811409c5939400020b6cf045616baad8fc97393d76a8dc792e22bf10d16aa4231cdfef4d16525351e9d789fd0c619150d50073ae470c1b6ecb3f77eeb397ab64d8d0d2cc2b3c90178050c6427706cb49d6f57550a1cdad520608b179762d6164a4ecd1f", 0x0, &(0x7f0000001300), 0x8, 0x9, [0x80000001, 0x10008, 0x4, 0x8]})
r2 = socket$inet6_sctp(0x1c, 0x1, 0x84)
vfork()
lio_listio(0x0, 0x0, 0x0, &(0x7f0000000140)={0x1, 0x49, @sigval_int, @thr={0x0, 0x0}})
getsockopt$inet6_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x105, &(0x7f0000000340)={0x5, [0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f0000000380)=0x18)
sendmsg$inet6_sctp(r2, &(0x7f0000000280)={&(0x7f0000000640)=@in6={0x1c, 0x1c, 0x1, 0x0, @remote={0xfe, 0x80, '\x00', 0x0}}, 0x1c, &(0x7f00000001c0)=[{&(0x7f0000000340)='H', 0x1}], 0x1}, 0x20180)
socket(0x1c, 0x1, 0x0)
setsockopt$inet6_tcp_TCP_FUNCTION_BLK(0xffffffffffffffff, 0x6, 0x2000, 0x0, 0x0)

2.698536854s ago: executing program 0 (id=26):
r0 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x10000000)
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$inet_sctp_SCTP_PEER_ADDR_THLDS(r2, 0x84, 0x23, &(0x7f0000000140)={@in6={{0x1c, 0x1c, 0x1, 0x0, @ipv4={'\x00', '\xff\xff', @rand_addr=0x76}, 0x486}}, 0x0, 0x9a, 0x49c5}, &(0x7f0000000000)=0x90)
profil(0x0, 0x0, 0x0, 0x0)
r3 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_INITMSG(r3, 0x84, 0x3, 0x0, 0x0)
rfork(0x7010)
sync()
open(0x0, 0x0, 0x0)
setsockopt$inet_sctp_SCTP_CONNECT_X(0xffffffffffffffff, 0x84, 0x8007, 0x0, &(0x7f00000002c0))
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}, 0x10)

2.542345619s ago: executing program 0 (id=27):
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, 0x0, 0x0)
setsockopt$inet6_IPV6_HOPOPTS(0xffffffffffffffff, 0x29, 0x31, &(0x7f00000016c0)=ANY=[], 0x28)
getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x28, &(0x7f0000000280)={0x1, [0x0]}, &(0x7f00000002c0)=0x8)
r1 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r1, 0x6, 0x2000, &(0x7f0000000080)={'bbr\x00'}, 0x24)
connect$inet(0xffffffffffffffff, &(0x7f00000000c0)={0x34, 0x2, 0x2, @rand_addr=0xfffffffe}, 0x10)

2.428331741s ago: executing program 3 (id=28):
setsockopt$inet_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x0, 0x51, &(0x7f0000000500)={0x18b, {{0x10, 0x2, 0x1, @multicast2}}}, 0x84)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
r1 = socket(0x1c, 0x1, 0x0)
openat$ptmx(0xffffffffffffff9c, 0x0, 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$inet_tcp_TCP_FUNCTION_BLK(r2, 0x6, 0x2000, &(0x7f0000000300)={'rack\x00'}, 0x24)
connect$inet(r2, &(0x7f0000000240)={0x10, 0x2, 0x2, @remote={0xac, 0x14, 0x0}}, 0x10)

2.405650495s ago: executing program 0 (id=29):
r0 = socket$inet_sctp(0x2, 0x5, 0x84)
connect$inet(r0, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
sendto$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a2", 0x5b, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r1 = kqueue()
kevent(r1, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0x0, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
r2 = socket$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]}, 0x0)
setsockopt$inet_sctp_SCTP_CONTEXT(r2, 0x84, 0x1a, &(0x7f0000000180)={r4}, 0x8)
socket$inet6_sctp(0x1c, 0x1, 0x84)
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)
sendmsg$inet6_sctp(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000100)=[{&(0x7f00000005c0)="ca1b3b5c422ca65675e274c429d4ecb6043c5c10548af3499af18ae3b738b9b6b5428e18e8a6f70a1fad05f03388e5d7fcc796fa874a4c850fc114d59d7d095f07c3338b7653ed757e08fc8325e69831de6411138839053b1a7b32636f2e05fcbcada2375bde92ed0ac706042efe8a3bcd095a7ab57ac9ddbdc94f1545f59d15ada6e76061b7834beac7d501f26c2752d451ca96b5f61b24c88865cfe25dfb939a9fcbb9146239110e08576b3ec84e75714e740034e78dba801094faa3edb5774e0c58a39e0a1439a32fb837000000000000800108fcaeec67663ce77bfbc50affa69135c9385cd6d36ff365039a3c5a89a24e3fed7dee1a35513534f7173d892afd3b73f76a08af4f857a1f2674d9ace7647aace412d13afc1ac098fe6f86bfdef411248b", 0x125}], 0x1, 0x0, 0x0, 0x81}, 0x0)
rfork(0x85000)

1.961579062s ago: executing program 2 (id=30):
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$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b", 0x5c, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r3 = kqueue()
kevent(r3, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0x0, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
r4 = socket$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, [0x0]}, 0x0)
setsockopt$inet_sctp_SCTP_CONTEXT(r4, 0x84, 0x1a, 0x0, 0x0)
socket$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)
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)

1.917583573s ago: executing program 0 (id=31):
setsockopt$inet_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x0, 0x51, 0x0, 0x0)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x0, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
socket$inet_sctp(0x2, 0x0, 0x84)
kmq_open(0x0, 0x0, 0x0, 0x0)

1.884624937s ago: executing program 1 (id=32):
setsockopt$inet_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x0, 0x51, &(0x7f0000000500)={0x18b, {{0x10, 0x2, 0x1, @multicast2}}}, 0x84)
r0 = kqueue()
kevent(r0, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0xe8c1, 0x80000000, [0x40]}], 0x1, 0x0, 0x0, 0x0)
socket(0x0, 0x1, 0x0)
aio_write(0x0)
socket$inet6_sctp(0x1c, 0x0, 0x84)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000f80), 0x0, 0x0)
socket$inet6_tcp(0x1c, 0x1, 0x0)
getsockopt$inet_sctp_SCTP_RECVRCVINFO(0xffffffffffffffff, 0x84, 0x1f, &(0x7f0000000080), &(0x7f00000000c0)=0x4)
r1 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r1, 0x6, 0x2000, &(0x7f0000000300)={'rack\x00'}, 0x24)
openat$crypto(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)

1.875985267s ago: executing program 0 (id=33):
connect$inet(0xffffffffffffffff, &(0x7f0000000140)={0x10, 0x2, 0x0, @remote={0xac, 0x14, 0x0}}, 0x10)
r0 = socket$inet6_sctp(0x1c, 0x1, 0x84)
bind(r0, &(0x7f0000000000)=@in6={0x1c, 0x1c, 0x3, 0x0, @loopback}, 0x1c)
connect$inet6(r0, &(0x7f0000000080)={0x1c, 0x1c, 0x3, 0x0, @loopback}, 0x1c)
r1 = dup(r0)
sendto$inet6(r1, &(0x7f00000001c0)="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", 0x797, 0x0, 0x0, 0x0)
rfork(0x85000)

1.60818546s ago: executing program 1 (id=34):
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, 0x0, 0x84)
r5 = dup(r4)
getsockopt$inet_sctp_SCTP_DEFAULT_SEND_PARAM(r5, 0x84, 0xa, 0x0, &(0x7f0000000180))
mincore(&(0x7f0000013000/0x4000)=nil, 0x4000, 0x0)
kmq_open(0x0, 0x0, 0x0, 0x0)
r6 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_EVENTS(r6, 0x84, 0xc, &(0x7f0000000000)={0x0, 0xd7, 0x0, 0x0, 0x0, 0xff, 0x0, 0x0, 0xe, 0x8c, 0x8}, 0xb)
sendto$inet(r1, 0x0, 0x0, 0x101, 0x0, 0x0)

975.880896ms ago: executing program 3 (id=35):
r0 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x10000000)
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$inet_sctp_SCTP_PEER_ADDR_THLDS(r2, 0x84, 0x23, &(0x7f0000000140)={@in6={{0x1c, 0x1c, 0x1, 0x0, @ipv4={'\x00', '\xff\xff', @rand_addr=0x76}, 0x486}}, 0x0, 0x9a, 0x49c5}, &(0x7f0000000000)=0x90)
profil(0x0, 0x0, 0x0, 0x0)
r3 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_INITMSG(r3, 0x84, 0x3, 0x0, 0x0)
rfork(0x7010)
sync()
open(0x0, 0x0, 0x0)
setsockopt$inet_sctp_SCTP_CONNECT_X(0xffffffffffffffff, 0x84, 0x8007, 0x0, &(0x7f00000002c0))
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}, 0x10)

0s ago: executing program 3 (id=36):
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$inet6(0xffffffffffffffff, &(0x7f0000000600)="14a3fb1a6025b8cdd859c1c2900984923796fa62612e29c5a050c38d8c9f8cb62763920df1f67ddcd95e8d3e9984b6ce65093291e16bd3c0690a6f3c041c1d1b149dcdbfc289cafbafae52adad225aa5d98169f951ae4af8a475a23b", 0x5c, 0x0, &(0x7f0000000080)={0x1c, 0x1c, 0x1, 0x0, @rand_addr="fee3a38e5cac1c51deba3c6b07a430a0"}, 0x1c)
r3 = kqueue()
kevent(r3, &(0x7f0000000040)=[{0x0, 0xfffffffffffffff9, 0x9, 0x8, 0x0, 0x0, [0x0, 0x0, 0x7, 0x40000000000000]}], 0x1, 0x0, 0x0, 0x0)
syz_emit_ethernet(0x42, 0x0)
r4 = socket$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, [0x0]}, 0x0)
setsockopt$inet_sctp_SCTP_CONTEXT(r4, 0x84, 0x1a, 0x0, 0x0)
socket$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)
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)

kernel console output (not intermixed with test programs):

Warning: Permanently added '10.128.1.152' (ED25519) to the list of known hosts.
Expensive callout(9) function: 0xffffffff8142f140(0xfffffe006dad25a0) 0.042627790 s
Expensive callout(9) function: 0xffffffff819b4930(0xfffffe0054049bd0) 0.273457873 s
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800
if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb800


FreeBSD/amd64 (ci-freebsd-main-8.c.syzkaller.internal) (ttyu0)

login: if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
Aug  1 13:05:30 if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
ci-freebsd-main-8 dhclient[841]: Interface tap1 is down, dhclient exiting
SYZFAIL: failed to send rpc
fd=3 want=83008 sent=0 n=-1 (errno 32: Broken pipe)
Aug  1 13:05:30 ci-freebsd-main-8 dhclient[841]: connection closed
Aug  1 13:05:30 ci-freebsd-main-8 dhclient[841]: 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 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
if_delmulti_locked: detaching ifnet instance 0xfffffe0058545800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058545800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058545800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058545800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058545800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058545800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058545800
Aug  1 13:05:30 ci-freebsd-main-8 dhclient[891]: send_packet: Network is down
Aug  1 13:05:30 ci-freebsd-main-8 dhclient[891]: Interface tap0 is down, dhclient exiting
Aug  1 13:05:30 ci-freebsd-main-8 dhclient[891]: connection closed
Aug  1 13:05:30 ci-freebsd-main-8 dhclient[891]: exiting.
set $maxwidth = 0
Password: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 0xfffffe0058546800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058546800

Login incorrect
login: if_delmulti_locked: detaching ifnet instance 0xfffffe00079fb000
show proc
Password:
Login incorrect
login: show all locks
Aug  1 13:05:35 ci-freebsd-main-8 login[748]: 2 LOGIN FAILURES ON ttyu0
Password:
Login incorrect
login: show uma
Password: