# https://syzkaller.appspot.com/bug?id=4aa4ac47afdabcafecf928c8c6eb43ccddce4e77
# See https://goo.gl/kgGztJ for information about syzkaller reproducers.
#{"threaded":true,"collide":true,"repeat":true,"procs":6,"slowdown":1,"sandbox":"none","fault_call":-1,"tun":true,"netdev":true,"resetnet":true,"cgroups":true,"binfmt_misc":true,"close_fds":true,"usb":true,"vhci":true,"wifi":true,"ieee802154":true,"sysctl":true,"tmpdir":true,"segv":true}
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
listen(r0, 0x6)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x10)
socket$inet6_sctp(0xa, 0x1, 0x84)
r2 = accept$alg(r0, 0x0, 0x0)
getsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX3(0xffffffffffffffff, 0x84, 0x6f, 0x0, &(0x7f0000000180))
r3 = socket$inet_sctp(0x2, 0x1, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r3, 0x84, 0xd, 0x0, 0x0)
getsockopt$inet_sctp6_SCTP_LOCAL_AUTH_CHUNKS(0xffffffffffffffff, 0x84, 0x18, 0x0, 0x0)
getsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX3(0xffffffffffffffff, 0x84, 0x6f, 0x0, &(0x7f00000022c0))
sendmmsg(r2, &(0x7f000000a800)=[{{&(0x7f0000000040)=@l2tp={0x2, 0x0, @private=0xa010101, 0x3}, 0x80, &(0x7f00000001c0)=[{&(0x7f00000000c0)="bd023238ead582b3d8328c8339fb1e7db61a3e6e2a4071fac87f3419d7bd16c7eb2fb8dd41bfaff37f3dd9af507fed3f94e5eab4e00a32b4f026bd449b2a3b53e80b7604baa20dca27f499a72ca46e86213c90dae3dcb71e338161d9bdebc6b975808c1caad5d3acbcb135ad8caf0d53fcfd561d7dcc2f5af84d09d31eeffec7143865debe895e87f73dc191e6534247a0af1987cdb12d2ccfb95a2a7b7b3a6e94afff48c8542afca26c7220800f7d6bb474ef2dec09e8d77f40167f70d6170091233f1c50a56163bcaacae00f8b608bf677300e760e62fa76e6ebad1b2dd4", 0xdf}, {0x0}], 0x2, &(0x7f0000000680)=[{0x10, 0x100, 0x9}, {0x10, 0x3a, 0xb2}, {0x10, 0x10a, 0x4}, {0x18, 0x118, 0x5, 'q'}, {0x58, 0x119, 0x4, "791f0754a18cbb7a8fe003264a4d006a31ae0abf573e47428e2c24c0415aa24cab486b477639f4f35f84b2230050279c46dd67a3ee0720ba2570bcdc22f293beca4d24ad2633e033"}, {0xc8, 0x6, 0x2, "85529f9cf2b93286ae2cd27eb5e9aff82e87794ceb55014c3a52ec4c864167c32b86627378734d6821ee1c1d89350b2caa026c9edf1b07b10899fbb3c5073068596f62e2fe61360f5119541d7035b45f1f97b4a9193afd1554aa54f6df9a8e39344712276a7d96e735950615188ee81f3d597d7d76d387e5a9f98511243e7a977f5b4a9aa33ac6df586bb3442e97f2dc9feecc22dd35d6648bed81e2f4d4d87c5e909d67f982dc20da7332cdcb226121aff23d485e0b"}, {0x90, 0xb5, 0x5, "cf2fb5f64a134ce45c130524c650a96627371e149848e7b7c376035c8579891453ac5496e3a991641730f89e794f9bd379a248367ddeb73250d96c357e14ed83214f4028c916ead55d9855fb92ad2a2d1acf929292ecd17389064febc8ce5e222291c7872f23df1e147c3e0b9546a766cc6eb1ee1366bc30c439147a06"}, {0x40, 0x16, 0xa0, "419ed1c005cf377d74ba22684c404e0cddda2b50be8f255f6bfdc83bcfc75d86ae0c783faa3c785e72e3d1"}, {0x10, 0x10a, 0x80000001}], 0x248}}, {{0x0, 0x0, &(0x7f0000001d80)=[{0x0}, {&(0x7f0000000540)="b48c07a71ee6fe9b210d949aaf52b33ea3a8fa98afc9c504bd515420185e1fb4f4348770d1b099fc7e13fc2898b6d926ea247b2a14b5082e387f2d51ff14b1ed2b78876e3453affd55abcc5feb26242d168510df3e23f7eab205688ce0d61127ac29122a4d9d95b85fff8da58e12054b58a038667146736342d00d4e8791735cfc141a0d981274a35a1b71df30f21addb85978f0dfbc0b6f3244376ab857a49d8cad25bce79db29969ebace47521a8e00dbfd163014cfb7e6a6ea22fad166d5e65c69d7097a7afdcb876caf3a2a554fb7517c30440a0750607e634efc11033c130c86f0c9e9bb99fc619dc8b605e06ba8bb103192bf0", 0xf6}, {&(0x7f0000000c80)}, {&(0x7f0000001c80)}, {0x0}], 0x5, &(0x7f0000002140)}}, {{&(0x7f0000001e00)=@sco={0x1f, @none}, 0x80, 0x0}}, {{0x0, 0x0, &(0x7f0000006b40)=[{&(0x7f0000006880)="e0551b69e87a7bc5ce4271a66f4e1fb2f6e170448b0ce0da09097704d21ee3847b2056864fbe11bac695403768946226ec284237b631a87f6c1ddc9a5f4c6458ffcd037d02a53a011d98572fbd927a5160fa3033563edcb16ef34bec7a7f621928d0f64cc53c9a507dcd3bdd850cda9b5cfe824017d00f0f0d5ee319c2f0019a6a17b51eb341bfe82f005345be973c13680484096c2d1bb0f6d9543dece983f4c834aa584967efc71003bf58e41863ce088b8fd30b7e0373c975313bbb90e2", 0xbf}, {0x0}, {&(0x7f00000069c0)}, {&(0x7f0000006a40)="10bd66b72e9216b988e5628c4884b6f41eafe1f338af4dc411b142d89eb9dda6643776161465dcdd7b9da10308f1ea94fee886370b966b23165e21cf4df30507d5df7f34694c769d5c38b1aace753474a6dc5bf41fe03462203ad3ad780d6ae536710ea379f58597ae1671917a69e6f38c0f2585b52515531f74564c96538a6760f24ef2e65f7b73e0c7b9a5c9f43db799966a9f4d956767db3be8bee543ff0bd3c51cd8bd2360ad8ca10547da8cd19c93d4763c03dbd1efe630ec1b8e69accb9678eeac2c0c5bb328c4fbb4a6ac", 0xce}], 0x4}}, {{0x0, 0x0, &(0x7f0000008000)=[{&(0x7f0000006cc0)="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", 0x1000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}], 0x6}}, {{&(0x7f0000008080)=@nl=@unspec, 0x80, 0x0, 0x0, &(0x7f0000009500)=[{0xd0, 0x107, 0x4, "28b905fbcd5956cfe93e776bbe119bb52baa3744135e343edb2c74b05cb75e4654fe2ded56a591e569e5581bdd27c72d1ef47caaa71792e76bb9e32c99a31e1a5a9008a2a28eb0c2af4d526b474c351922f65e2a761083b819486cc8bc523afde040064cfc0a9f39beecd0cd85a20dba84713e7c87d2cd6d3509ddb18ea9a3b820836c4670a1abae88ebeb163af7e0aecfd22abce1cff21f5745e356d0ce35d6b52e9b023b09aced17ba2a90580956fb5ebc713c0f1120ad727e"}], 0xd0}}, {{0x0, 0x0, &(0x7f000000a680), 0x0, &(0x7f000000a6c0)=[{0xa0, 0x113, 0x0, "a21642b966d54a468916b214ebdd17f00f005b0942bc7db06a50c604c336a6c2a90ada9835eed8cea8a4a92d6d3d505c75425d78ad8319c07cb57147b59f77d4e7a96e3dd83b73e60cbd5ef5dab14eddfd60485ec48df4a63eb644c1ee815badfa32f216ea02ec422cffb4cf9bbf32fbfb77f1450402e61587bd5a69319f480087b0f2125ed709b628768d3231f563a3"}, {0x90, 0x88, 0x0, "d349fc39dc33e95de3f02312533314d7fb4682a716e2a7e8559912d13187358d92b4dacc5eb2cc91d9b16cc7dbc90f94faa14ec2808808c613f24b7ffa9bde0d6804a4952407345d8ccf10b508031e6cc0250010af4fbeb4c02e9738470b8dce49c3cee06031a81c1f70f3cee3dbbbf71d8a1cce77be84bb06950adeba61da"}], 0x130}}], 0x7, 0x20000000)
sendmmsg(r1, &(0x7f0000000240)=[{{0x0, 0x0, &(0x7f0000002100)=[{&(0x7f00000020c0)="e5", 0x1}], 0x1, 0x0, 0x0, 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x0)