Extracting prog: 2m25.678412527s
Minimizing prog: 23m38.083974031s
Simplifying prog options: 0s
Extracting C: 1m56.012472919s
Simplifying C: 28m46.16197917s


extracting reproducer from 30 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
detailed listing:
executing program 0:
syz_emit_ethernet(0x3b6, &(0x7f00000003c0)={@multicast, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "122d92", 0x380, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0x0, 0xa6, 0x0, 0x0, 0x0, [{0x3, 0xa, "a78ce54006598080a8030037004023493b87aafaffffffffffffff23732472eefa45ad96579269748e254c1e4a8a8b3f0ab0c430d3be27df3e34066d42ca0a5c15b37adac15084dbaf736b41e5af1802"}, {0x0, 0x1, "000000050000000026000400"}, {0x18, 0x18, "fe906d26efe39393fe08f73eabc5977b1190a3a6ad8338f1511cdd10c35d8f6de79fc7fd175f75649fa368a32c829af02d7f44d92324a7051e460a13ddde25a5b85b9d930914625d8a049b4cf0d129806a610ad8477a2499a9a0527f75b655a6653d0363a979acf93f88eea07d68423e90280409de1657275f716a2bf2915d1783e8eb477b0d1170f0ecbdef4c23e1b76e9ab3d2fbe4b34438d2a77577edd0ebed9682b851b380ae0cab282af9d7ebe668177704c5fd4698c934de4731f3f61effc978"}, {0x0, 0x1d, "06aa85616177c41bc943afcb84619755403946b0730a18d5c38cf7dcad830f2dc8674b87ba8b58f81ece27975cc39e595e9af90b4fe92a38d25551c2d9ebfc5dfc5a2a501b7e483de3f808895c5f4a1a2367bc591dd8b094822ff0dea07c9a1f643c822a18b79f7c5eba31fb68b2d734a6671e27182aee96f24a4a5cf390dab23b500b0c0272479611e4f7f4299ec4d926d443367b105185e6ecd9602ba95392343e9bbd047ef6bc1ba42399907ccd0a562db212baa39eb8164e240069f656d3a05fecf894222a141123f5ac010000000000000090aa235a670670ffc5dc49dfb58d00000000000000"}, {0x19, 0xb, "17dcea46805d4809c20547406b18901b0aeff04c0300f3c75dc2d227a83b89483b1084743475671545e65eb2e9ac946a3f0e2bc4619f91394c02bcfbbb7d71138537d68e2d2c6393a9f3becd1a9f51a948b5b303f4f003"}, {0x21, 0x7, "ffffffffffff00000000000200000000000000000000000000008879e66485201a0015ca837400"/55}, {0x0, 0x14, "5e14f0e7e72d42cfb3f27fafb60845f90b6dfc2e37bc87c6905bbc94d33e1ea71a28105f543e868a8a53b360a9d33e2b1e26eb1d18065daa7628cf9ef083611c9f6ae2e1eb3d8bf9c6ab2642c4808288e62afbf03269f1f98aea6ab3beb5fdc5fdaabc2c676d8800871a6aa54155dea2d995cb22c9924e0ad38c6967052cc7786d779b8353aac33a57d79b05613a12328f61129017fa632dbf04542188b196e213408c"}, {0x3, 0x5, "d5170000dce9674a36da018dff16e70b8b14c4b7a94fe18e88605aa6be1a02a326a6bce65f81ed"}]}}}}}}, 0x0)

program crashed: WARNING in ipv6_addr_prefix
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
testing program (duration=53.39684667s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
detailed listing:
executing program 0:
syz_emit_ethernet(0x0, 0x0, 0x0)

program did not crash
testing program (duration=53.39684667s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
detailed listing:
executing program 0:
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@multicast, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "122d92", 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0x0, 0xa6}}}}}}, 0x0)

program did not crash
testing program (duration=53.39684667s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
detailed listing:
executing program 0:
syz_emit_ethernet(0x38f, &(0x7f00000003c0)={@multicast, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "122d92", 0x359, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0x0, 0xa6, 0x0, 0x0, 0x0, [{0x3, 0xa, "a78ce54006598080a8030037004023493b87aafaffffffffffffff23732472eefa45ad96579269748e254c1e4a8a8b3f0ab0c430d3be27df3e34066d42ca0a5c15b37adac15084dbaf736b41e5af1802"}, {0x0, 0x1, "000000050000000026000400"}, {0x18, 0x18, "fe906d26efe39393fe08f73eabc5977b1190a3a6ad8338f1511cdd10c35d8f6de79fc7fd175f75649fa368a32c829af02d7f44d92324a7051e460a13ddde25a5b85b9d930914625d8a049b4cf0d129806a610ad8477a2499a9a0527f75b655a6653d0363a979acf93f88eea07d68423e90280409de1657275f716a2bf2915d1783e8eb477b0d1170f0ecbdef4c23e1b76e9ab3d2fbe4b34438d2a77577edd0ebed9682b851b380ae0cab282af9d7ebe668177704c5fd4698c934de4731f3f61effc978"}, {0x0, 0x1d, "06aa85616177c41bc943afcb84619755403946b0730a18d5c38cf7dcad830f2dc8674b87ba8b58f81ece27975cc39e595e9af90b4fe92a38d25551c2d9ebfc5dfc5a2a501b7e483de3f808895c5f4a1a2367bc591dd8b094822ff0dea07c9a1f643c822a18b79f7c5eba31fb68b2d734a6671e27182aee96f24a4a5cf390dab23b500b0c0272479611e4f7f4299ec4d926d443367b105185e6ecd9602ba95392343e9bbd047ef6bc1ba42399907ccd0a562db212baa39eb8164e240069f656d3a05fecf894222a141123f5ac010000000000000090aa235a670670ffc5dc49dfb58d00000000000000"}, {0x19, 0xb, "17dcea46805d4809c20547406b18901b0aeff04c0300f3c75dc2d227a83b89483b1084743475671545e65eb2e9ac946a3f0e2bc4619f91394c02bcfbbb7d71138537d68e2d2c6393a9f3becd1a9f51a948b5b303f4f003"}, {0x21, 0x7, "ffffffffffff00000000000200000000000000000000000000008879e66485201a0015ca837400"/55}, {0x0, 0x14, "5e14f0e7e72d42cfb3f27fafb60845f90b6dfc2e37bc87c6905bbc94d33e1ea71a28105f543e868a8a53b360a9d33e2b1e26eb1d18065daa7628cf9ef083611c9f6ae2e1eb3d8bf9c6ab2642c4808288e62afbf03269f1f98aea6ab3beb5fdc5fdaabc2c676d8800871a6aa54155dea2d995cb22c9924e0ad38c6967052cc7786d779b8353aac33a57d79b05613a12328f61129017fa632dbf04542188b196e213408c"}, {0x3}]}}}}}}, 0x0)

program did not crash
testing program (duration=53.39684667s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
detailed listing:
executing program 0:
syz_emit_ethernet(0x313, &(0x7f00000003c0)={@multicast, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "122d92", 0x2dd, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0x0, 0xa6, 0x0, 0x0, 0x0, [{0x3, 0xa, "a78ce54006598080a8030037004023493b87aafaffffffffffffff23732472eefa45ad96579269748e254c1e4a8a8b3f0ab0c430d3be27df3e34066d42ca0a5c15b37adac15084dbaf736b41e5af1802"}, {0x0, 0x1, "000000050000000026000400"}, {0x18, 0x18, "fe906d26efe39393fe08f73eabc5977b1190a3a6ad8338f1511cdd10c35d8f6de79fc7fd175f75649fa368a32c829af02d7f44d92324a7051e460a13ddde25a5b85b9d930914625d8a049b4cf0d129806a610ad8477a2499a9a0527f75b655a6653d0363a979acf93f88eea07d68423e90280409de1657275f716a2bf2915d1783e8eb477b0d1170f0ecbdef4c23e1b76e9ab3d2fbe4b34438d2a77577edd0ebed9682b851b380ae0cab282af9d7ebe668177704c5fd4698c934de4731f3f61effc978"}, {0x0, 0x1d, "06aa85616177c41bc943afcb84619755403946b0730a18d5c38cf7dcad830f2dc8674b87ba8b58f81ece27975cc39e595e9af90b4fe92a38d25551c2d9ebfc5dfc5a2a501b7e483de3f808895c5f4a1a2367bc591dd8b094822ff0dea07c9a1f643c822a18b79f7c5eba31fb68b2d734a6671e27182aee96f24a4a5cf390dab23b500b0c0272479611e4f7f4299ec4d926d443367b105185e6ecd9602ba95392343e9bbd047ef6bc1ba42399907ccd0a562db212baa39eb8164e240069f656d3a05fecf894222a141123f5ac010000000000000090aa235a670670ffc5dc49dfb58d00000000000000"}, {0x19, 0xb, "17dcea46805d4809c20547406b18901b0aeff04c0300f3c75dc2d227a83b89483b1084743475671545e65eb2e9ac946a3f0e2bc4619f91394c02bcfbbb7d71138537d68e2d2c6393a9f3becd1a9f51a948b5b303f4f003"}, {0x21, 0x7, "ffffffffffff00000000000200000000000000000000000000008879e66485201a0015ca837400"/55}, {}, {0x3, 0x5, "d5170000dce9674a36da018dff16e70b8b14c4b7a94fe18e88605aa6be1a02a326a6bce65f81ed"}]}}}}}}, 0x0)

program did not crash
testing program (duration=53.39684667s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
detailed listing:
executing program 0:
syz_emit_ethernet(0x37f, &(0x7f00000003c0)={@multicast, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "122d92", 0x349, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0x0, 0xa6, 0x0, 0x0, 0x0, [{0x3, 0xa, "a78ce54006598080a8030037004023493b87aafaffffffffffffff23732472eefa45ad96579269748e254c1e4a8a8b3f0ab0c430d3be27df3e34066d42ca0a5c15b37adac15084dbaf736b41e5af1802"}, {0x0, 0x1, "000000050000000026000400"}, {0x18, 0x18, "fe906d26efe39393fe08f73eabc5977b1190a3a6ad8338f1511cdd10c35d8f6de79fc7fd175f75649fa368a32c829af02d7f44d92324a7051e460a13ddde25a5b85b9d930914625d8a049b4cf0d129806a610ad8477a2499a9a0527f75b655a6653d0363a979acf93f88eea07d68423e90280409de1657275f716a2bf2915d1783e8eb477b0d1170f0ecbdef4c23e1b76e9ab3d2fbe4b34438d2a77577edd0ebed9682b851b380ae0cab282af9d7ebe668177704c5fd4698c934de4731f3f61effc978"}, {0x0, 0x1d, "06aa85616177c41bc943afcb84619755403946b0730a18d5c38cf7dcad830f2dc8674b87ba8b58f81ece27975cc39e595e9af90b4fe92a38d25551c2d9ebfc5dfc5a2a501b7e483de3f808895c5f4a1a2367bc591dd8b094822ff0dea07c9a1f643c822a18b79f7c5eba31fb68b2d734a6671e27182aee96f24a4a5cf390dab23b500b0c0272479611e4f7f4299ec4d926d443367b105185e6ecd9602ba95392343e9bbd047ef6bc1ba42399907ccd0a562db212baa39eb8164e240069f656d3a05fecf894222a141123f5ac010000000000000090aa235a670670ffc5dc49dfb58d00000000000000"}, {0x19, 0xb, "17dcea46805d4809c20547406b18901b0aeff04c0300f3c75dc2d227a83b89483b1084743475671545e65eb2e9ac946a3f0e2bc4619f91394c02bcfbbb7d71138537d68e2d2c6393a9f3becd1a9f51a948b5b303f4f003"}, {0x21}, {0x0, 0x14, "5e14f0e7e72d42cfb3f27fafb60845f90b6dfc2e37bc87c6905bbc94d33e1ea71a28105f543e868a8a53b360a9d33e2b1e26eb1d18065daa7628cf9ef083611c9f6ae2e1eb3d8bf9c6ab2642c4808288e62afbf03269f1f98aea6ab3beb5fdc5fdaabc2c676d8800871a6aa54155dea2d995cb22c9924e0ad38c6967052cc7786d779b8353aac33a57d79b05613a12328f61129017fa632dbf04542188b196e213408c"}, {0x3, 0x5, "d5170000dce9674a36da018dff16e70b8b14c4b7a94fe18e88605aa6be1a02a326a6bce65f81ed"}]}}}}}}, 0x0)

program did not crash
testing program (duration=53.39684667s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
detailed listing:
executing program 0:
syz_emit_ethernet(0x35f, &(0x7f00000003c0)={@multicast, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "122d92", 0x329, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0x0, 0xa6, 0x0, 0x0, 0x0, [{0x3, 0xa, "a78ce54006598080a8030037004023493b87aafaffffffffffffff23732472eefa45ad96579269748e254c1e4a8a8b3f0ab0c430d3be27df3e34066d42ca0a5c15b37adac15084dbaf736b41e5af1802"}, {0x0, 0x1, "000000050000000026000400"}, {0x18, 0x18, "fe906d26efe39393fe08f73eabc5977b1190a3a6ad8338f1511cdd10c35d8f6de79fc7fd175f75649fa368a32c829af02d7f44d92324a7051e460a13ddde25a5b85b9d930914625d8a049b4cf0d129806a610ad8477a2499a9a0527f75b655a6653d0363a979acf93f88eea07d68423e90280409de1657275f716a2bf2915d1783e8eb477b0d1170f0ecbdef4c23e1b76e9ab3d2fbe4b34438d2a77577edd0ebed9682b851b380ae0cab282af9d7ebe668177704c5fd4698c934de4731f3f61effc978"}, {0x0, 0x1d, "06aa85616177c41bc943afcb84619755403946b0730a18d5c38cf7dcad830f2dc8674b87ba8b58f81ece27975cc39e595e9af90b4fe92a38d25551c2d9ebfc5dfc5a2a501b7e483de3f808895c5f4a1a2367bc591dd8b094822ff0dea07c9a1f643c822a18b79f7c5eba31fb68b2d734a6671e27182aee96f24a4a5cf390dab23b500b0c0272479611e4f7f4299ec4d926d443367b105185e6ecd9602ba95392343e9bbd047ef6bc1ba42399907ccd0a562db212baa39eb8164e240069f656d3a05fecf894222a141123f5ac010000000000000090aa235a670670ffc5dc49dfb58d00000000000000"}, {0x19}, {0x21, 0x7, "ffffffffffff00000000000200000000000000000000000000008879e66485201a0015ca837400"/55}, {0x0, 0x14, "5e14f0e7e72d42cfb3f27fafb60845f90b6dfc2e37bc87c6905bbc94d33e1ea71a28105f543e868a8a53b360a9d33e2b1e26eb1d18065daa7628cf9ef083611c9f6ae2e1eb3d8bf9c6ab2642c4808288e62afbf03269f1f98aea6ab3beb5fdc5fdaabc2c676d8800871a6aa54155dea2d995cb22c9924e0ad38c6967052cc7786d779b8353aac33a57d79b05613a12328f61129017fa632dbf04542188b196e213408c"}, {0x3, 0x5, "d5170000dce9674a36da018dff16e70b8b14c4b7a94fe18e88605aa6be1a02a326a6bce65f81ed"}]}}}}}}, 0x0)

program did not crash
testing program (duration=53.39684667s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
detailed listing:
executing program 0:
syz_emit_ethernet(0x2cd, &(0x7f00000003c0)={@multicast, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "122d92", 0x297, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0x0, 0xa6, 0x0, 0x0, 0x0, [{0x3, 0xa, "a78ce54006598080a8030037004023493b87aafaffffffffffffff23732472eefa45ad96579269748e254c1e4a8a8b3f0ab0c430d3be27df3e34066d42ca0a5c15b37adac15084dbaf736b41e5af1802"}, {0x0, 0x1, "000000050000000026000400"}, {0x18, 0x18, "fe906d26efe39393fe08f73eabc5977b1190a3a6ad8338f1511cdd10c35d8f6de79fc7fd175f75649fa368a32c829af02d7f44d92324a7051e460a13ddde25a5b85b9d930914625d8a049b4cf0d129806a610ad8477a2499a9a0527f75b655a6653d0363a979acf93f88eea07d68423e90280409de1657275f716a2bf2915d1783e8eb477b0d1170f0ecbdef4c23e1b76e9ab3d2fbe4b34438d2a77577edd0ebed9682b851b380ae0cab282af9d7ebe668177704c5fd4698c934de4731f3f61effc978"}, {}, {0x19, 0xb, "17dcea46805d4809c20547406b18901b0aeff04c0300f3c75dc2d227a83b89483b1084743475671545e65eb2e9ac946a3f0e2bc4619f91394c02bcfbbb7d71138537d68e2d2c6393a9f3becd1a9f51a948b5b303f4f003"}, {0x21, 0x7, "ffffffffffff00000000000200000000000000000000000000008879e66485201a0015ca837400"/55}, {0x0, 0x14, "5e14f0e7e72d42cfb3f27fafb60845f90b6dfc2e37bc87c6905bbc94d33e1ea71a28105f543e868a8a53b360a9d33e2b1e26eb1d18065daa7628cf9ef083611c9f6ae2e1eb3d8bf9c6ab2642c4808288e62afbf03269f1f98aea6ab3beb5fdc5fdaabc2c676d8800871a6aa54155dea2d995cb22c9924e0ad38c6967052cc7786d779b8353aac33a57d79b05613a12328f61129017fa632dbf04542188b196e213408c"}, {0x3, 0x5, "d5170000dce9674a36da018dff16e70b8b14c4b7a94fe18e88605aa6be1a02a326a6bce65f81ed"}]}}}}}}, 0x0)

program did not crash
testing program (duration=53.39684667s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
detailed listing:
executing program 0:
syz_emit_ethernet(0x2f3, &(0x7f00000003c0)={@multicast, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "122d92", 0x2bd, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0x0, 0xa6, 0x0, 0x0, 0x0, [{0x3, 0xa, "a78ce54006598080a8030037004023493b87aafaffffffffffffff23732472eefa45ad96579269748e254c1e4a8a8b3f0ab0c430d3be27df3e34066d42ca0a5c15b37adac15084dbaf736b41e5af1802"}, {0x0, 0x1, "000000050000000026000400"}, {0x18}, {0x0, 0x1d, "06aa85616177c41bc943afcb84619755403946b0730a18d5c38cf7dcad830f2dc8674b87ba8b58f81ece27975cc39e595e9af90b4fe92a38d25551c2d9ebfc5dfc5a2a501b7e483de3f808895c5f4a1a2367bc591dd8b094822ff0dea07c9a1f643c822a18b79f7c5eba31fb68b2d734a6671e27182aee96f24a4a5cf390dab23b500b0c0272479611e4f7f4299ec4d926d443367b105185e6ecd9602ba95392343e9bbd047ef6bc1ba42399907ccd0a562db212baa39eb8164e240069f656d3a05fecf894222a141123f5ac010000000000000090aa235a670670ffc5dc49dfb58d00000000000000"}, {0x19, 0xb, "17dcea46805d4809c20547406b18901b0aeff04c0300f3c75dc2d227a83b89483b1084743475671545e65eb2e9ac946a3f0e2bc4619f91394c02bcfbbb7d71138537d68e2d2c6393a9f3becd1a9f51a948b5b303f4f003"}, {0x21, 0x7, "ffffffffffff00000000000200000000000000000000000000008879e66485201a0015ca837400"/55}, {0x0, 0x14, "5e14f0e7e72d42cfb3f27fafb60845f90b6dfc2e37bc87c6905bbc94d33e1ea71a28105f543e868a8a53b360a9d33e2b1e26eb1d18065daa7628cf9ef083611c9f6ae2e1eb3d8bf9c6ab2642c4808288e62afbf03269f1f98aea6ab3beb5fdc5fdaabc2c676d8800871a6aa54155dea2d995cb22c9924e0ad38c6967052cc7786d779b8353aac33a57d79b05613a12328f61129017fa632dbf04542188b196e213408c"}, {0x3, 0x5, "d5170000dce9674a36da018dff16e70b8b14c4b7a94fe18e88605aa6be1a02a326a6bce65f81ed"}]}}}}}}, 0x0)

program did not crash
testing program (duration=53.39684667s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
detailed listing:
executing program 0:
syz_emit_ethernet(0x3aa, &(0x7f00000003c0)={@multicast, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "122d92", 0x374, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0x0, 0xa6, 0x0, 0x0, 0x0, [{0x3, 0xa, "a78ce54006598080a8030037004023493b87aafaffffffffffffff23732472eefa45ad96579269748e254c1e4a8a8b3f0ab0c430d3be27df3e34066d42ca0a5c15b37adac15084dbaf736b41e5af1802"}, {}, {0x18, 0x18, "fe906d26efe39393fe08f73eabc5977b1190a3a6ad8338f1511cdd10c35d8f6de79fc7fd175f75649fa368a32c829af02d7f44d92324a7051e460a13ddde25a5b85b9d930914625d8a049b4cf0d129806a610ad8477a2499a9a0527f75b655a6653d0363a979acf93f88eea07d68423e90280409de1657275f716a2bf2915d1783e8eb477b0d1170f0ecbdef4c23e1b76e9ab3d2fbe4b34438d2a77577edd0ebed9682b851b380ae0cab282af9d7ebe668177704c5fd4698c934de4731f3f61effc978"}, {0x0, 0x1d, "06aa85616177c41bc943afcb84619755403946b0730a18d5c38cf7dcad830f2dc8674b87ba8b58f81ece27975cc39e595e9af90b4fe92a38d25551c2d9ebfc5dfc5a2a501b7e483de3f808895c5f4a1a2367bc591dd8b094822ff0dea07c9a1f643c822a18b79f7c5eba31fb68b2d734a6671e27182aee96f24a4a5cf390dab23b500b0c0272479611e4f7f4299ec4d926d443367b105185e6ecd9602ba95392343e9bbd047ef6bc1ba42399907ccd0a562db212baa39eb8164e240069f656d3a05fecf894222a141123f5ac010000000000000090aa235a670670ffc5dc49dfb58d00000000000000"}, {0x19, 0xb, "17dcea46805d4809c20547406b18901b0aeff04c0300f3c75dc2d227a83b89483b1084743475671545e65eb2e9ac946a3f0e2bc4619f91394c02bcfbbb7d71138537d68e2d2c6393a9f3becd1a9f51a948b5b303f4f003"}, {0x21, 0x7, "ffffffffffff00000000000200000000000000000000000000008879e66485201a0015ca837400"/55}, {0x0, 0x14, "5e14f0e7e72d42cfb3f27fafb60845f90b6dfc2e37bc87c6905bbc94d33e1ea71a28105f543e868a8a53b360a9d33e2b1e26eb1d18065daa7628cf9ef083611c9f6ae2e1eb3d8bf9c6ab2642c4808288e62afbf03269f1f98aea6ab3beb5fdc5fdaabc2c676d8800871a6aa54155dea2d995cb22c9924e0ad38c6967052cc7786d779b8353aac33a57d79b05613a12328f61129017fa632dbf04542188b196e213408c"}, {0x3, 0x5, "d5170000dce9674a36da018dff16e70b8b14c4b7a94fe18e88605aa6be1a02a326a6bce65f81ed"}]}}}}}}, 0x0)

program did not crash
testing program (duration=53.39684667s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
detailed listing:
executing program 0:
syz_emit_ethernet(0x366, &(0x7f00000003c0)={@multicast, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "122d92", 0x330, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0x0, 0xa6, 0x0, 0x0, 0x0, [{0x3}, {0x0, 0x1, "000000050000000026000400"}, {0x18, 0x18, "fe906d26efe39393fe08f73eabc5977b1190a3a6ad8338f1511cdd10c35d8f6de79fc7fd175f75649fa368a32c829af02d7f44d92324a7051e460a13ddde25a5b85b9d930914625d8a049b4cf0d129806a610ad8477a2499a9a0527f75b655a6653d0363a979acf93f88eea07d68423e90280409de1657275f716a2bf2915d1783e8eb477b0d1170f0ecbdef4c23e1b76e9ab3d2fbe4b34438d2a77577edd0ebed9682b851b380ae0cab282af9d7ebe668177704c5fd4698c934de4731f3f61effc978"}, {0x0, 0x1d, "06aa85616177c41bc943afcb84619755403946b0730a18d5c38cf7dcad830f2dc8674b87ba8b58f81ece27975cc39e595e9af90b4fe92a38d25551c2d9ebfc5dfc5a2a501b7e483de3f808895c5f4a1a2367bc591dd8b094822ff0dea07c9a1f643c822a18b79f7c5eba31fb68b2d734a6671e27182aee96f24a4a5cf390dab23b500b0c0272479611e4f7f4299ec4d926d443367b105185e6ecd9602ba95392343e9bbd047ef6bc1ba42399907ccd0a562db212baa39eb8164e240069f656d3a05fecf894222a141123f5ac010000000000000090aa235a670670ffc5dc49dfb58d00000000000000"}, {0x19, 0xb, "17dcea46805d4809c20547406b18901b0aeff04c0300f3c75dc2d227a83b89483b1084743475671545e65eb2e9ac946a3f0e2bc4619f91394c02bcfbbb7d71138537d68e2d2c6393a9f3becd1a9f51a948b5b303f4f003"}, {0x21, 0x7, "ffffffffffff00000000000200000000000000000000000000008879e66485201a0015ca837400"/55}, {0x0, 0x14, "5e14f0e7e72d42cfb3f27fafb60845f90b6dfc2e37bc87c6905bbc94d33e1ea71a28105f543e868a8a53b360a9d33e2b1e26eb1d18065daa7628cf9ef083611c9f6ae2e1eb3d8bf9c6ab2642c4808288e62afbf03269f1f98aea6ab3beb5fdc5fdaabc2c676d8800871a6aa54155dea2d995cb22c9924e0ad38c6967052cc7786d779b8353aac33a57d79b05613a12328f61129017fa632dbf04542188b196e213408c"}, {0x3, 0x5, "d5170000dce9674a36da018dff16e70b8b14c4b7a94fe18e88605aa6be1a02a326a6bce65f81ed"}]}}}}}}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=53.39684667s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
simplifying C reproducer
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program did not crash
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program did not crash
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
testing compiled C program (duration=53.39684667s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_ethernet
program crashed: WARNING in ipv6_addr_prefix
reproducing took 56m45.936860001s
repro crashed as (corrupted=false):
------------[ cut here ]------------
memcpy: detected field-spanning write (size 20) of single field "pfx->in6_u.u6_addr8" at ./include/net/ipv6.h:614 (size 16)
WARNING: CPU: 1 PID: 5832 at ./include/net/ipv6.h:614 ipv6_addr_prefix+0x124/0x1d0 include/net/ipv6.h:614
Modules linked in:
CPU: 1 UID: 0 PID: 5832 Comm: syz-executor296 Not tainted 6.15.0-rc3-syzkaller-00557-g5565acd1e6c4 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:ipv6_addr_prefix+0x124/0x1d0 include/net/ipv6.h:614
Code: cc e8 70 eb af f7 c6 05 b8 a8 59 05 01 90 b9 10 00 00 00 48 c7 c7 a0 86 7d 8c 4c 89 fe 48 c7 c2 c0 8d 7d 8c e8 4d 4a 74 f7 90 <0f> 0b 90 90 e9 33 ff ff ff e8 3e eb af f7 44 89 e6 48 c7 c7 c0 53
RSP: 0018:ffffc9000426eb40 EFLAGS: 00010246
RAX: c3833e5fc3b39200 RBX: ffff8880326f2450 RCX: ffff88802d68da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000007 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bba4b4 R12: 0000000000000014
R13: 1ffff9200084dd8e R14: ffffc9000426ec84 R15: 0000000000000014
FS:  0000555577b6b380(0000) GS:ffff8881261b2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000003d8 CR3: 0000000076582000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ip6_route_info_create+0x5cc/0xa70 net/ipv6/route.c:3810
 ip6_route_add+0x29/0x2f0 net/ipv6/route.c:3902
 addrconf_prefix_route+0x210/0x2c0 net/ipv6/addrconf.c:2487
 addrconf_prefix_rcv+0x60b/0x1610 net/ipv6/addrconf.c:2878
 ndisc_router_discovery+0x2015/0x35f0 net/ipv6/ndisc.c:1570
 icmpv6_rcv+0x139a/0x1c80 net/ipv6/icmp.c:988
 ip6_protocol_deliver_rcu+0xe08/0x15c0 net/ipv6/ip6_input.c:436
 ip6_input_finish+0xde/0x190 net/ipv6/ip6_input.c:480
 NF_HOOK+0x309/0x3a0 include/linux/netfilter.h:314
 ip6_input+0x16a/0x270 net/ipv6/ip6_input.c:491
 ip6_mc_input+0x79a/0xbe0 net/ipv6/ip6_input.c:588
 NF_HOOK+0x309/0x3a0 include/linux/netfilter.h:314
 __netif_receive_skb_one_core net/core/dev.c:5941 [inline]
 __netif_receive_skb+0xd3/0x380 net/core/dev.c:6054
 netif_receive_skb_internal net/core/dev.c:6140 [inline]
 netif_receive_skb+0x1cb/0x790 net/core/dev.c:6199
 tun_rx_batched+0x1b9/0x730 drivers/net/tun.c:1485
 tun_get_user+0x2879/0x3c20 drivers/net/tun.c:1938
 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0x548/0xa90 fs/read_write.c:684
 ksys_write+0x145/0x250 fs/read_write.c:736
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdba2a6d7e0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d a1 e8 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffff5a647b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffff5a64840 RCX: 00007fdba2a6d7e0
RDX: 00000000000003b6 RSI: 00002000000003c0 RDI: 00000000000000c8
RBP: 00007ffff5a647f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007fdba2abc18d
R13: 00007fdba2abc15d R14: 00007fdba2abc0c5 R15: 00007fdba2abc004
 </TASK>

final repro crashed as (corrupted=false):
------------[ cut here ]------------
memcpy: detected field-spanning write (size 20) of single field "pfx->in6_u.u6_addr8" at ./include/net/ipv6.h:614 (size 16)
WARNING: CPU: 1 PID: 5832 at ./include/net/ipv6.h:614 ipv6_addr_prefix+0x124/0x1d0 include/net/ipv6.h:614
Modules linked in:
CPU: 1 UID: 0 PID: 5832 Comm: syz-executor296 Not tainted 6.15.0-rc3-syzkaller-00557-g5565acd1e6c4 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:ipv6_addr_prefix+0x124/0x1d0 include/net/ipv6.h:614
Code: cc e8 70 eb af f7 c6 05 b8 a8 59 05 01 90 b9 10 00 00 00 48 c7 c7 a0 86 7d 8c 4c 89 fe 48 c7 c2 c0 8d 7d 8c e8 4d 4a 74 f7 90 <0f> 0b 90 90 e9 33 ff ff ff e8 3e eb af f7 44 89 e6 48 c7 c7 c0 53
RSP: 0018:ffffc9000426eb40 EFLAGS: 00010246
RAX: c3833e5fc3b39200 RBX: ffff8880326f2450 RCX: ffff88802d68da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000007 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bba4b4 R12: 0000000000000014
R13: 1ffff9200084dd8e R14: ffffc9000426ec84 R15: 0000000000000014
FS:  0000555577b6b380(0000) GS:ffff8881261b2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000003d8 CR3: 0000000076582000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ip6_route_info_create+0x5cc/0xa70 net/ipv6/route.c:3810
 ip6_route_add+0x29/0x2f0 net/ipv6/route.c:3902
 addrconf_prefix_route+0x210/0x2c0 net/ipv6/addrconf.c:2487
 addrconf_prefix_rcv+0x60b/0x1610 net/ipv6/addrconf.c:2878
 ndisc_router_discovery+0x2015/0x35f0 net/ipv6/ndisc.c:1570
 icmpv6_rcv+0x139a/0x1c80 net/ipv6/icmp.c:988
 ip6_protocol_deliver_rcu+0xe08/0x15c0 net/ipv6/ip6_input.c:436
 ip6_input_finish+0xde/0x190 net/ipv6/ip6_input.c:480
 NF_HOOK+0x309/0x3a0 include/linux/netfilter.h:314
 ip6_input+0x16a/0x270 net/ipv6/ip6_input.c:491
 ip6_mc_input+0x79a/0xbe0 net/ipv6/ip6_input.c:588
 NF_HOOK+0x309/0x3a0 include/linux/netfilter.h:314
 __netif_receive_skb_one_core net/core/dev.c:5941 [inline]
 __netif_receive_skb+0xd3/0x380 net/core/dev.c:6054
 netif_receive_skb_internal net/core/dev.c:6140 [inline]
 netif_receive_skb+0x1cb/0x790 net/core/dev.c:6199
 tun_rx_batched+0x1b9/0x730 drivers/net/tun.c:1485
 tun_get_user+0x2879/0x3c20 drivers/net/tun.c:1938
 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1984
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0x548/0xa90 fs/read_write.c:684
 ksys_write+0x145/0x250 fs/read_write.c:736
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdba2a6d7e0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d a1 e8 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffff5a647b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffff5a64840 RCX: 00007fdba2a6d7e0
RDX: 00000000000003b6 RSI: 00002000000003c0 RDI: 00000000000000c8
RBP: 00007ffff5a647f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007fdba2abc18d
R13: 00007fdba2abc15d R14: 00007fdba2abc0c5 R15: 00007fdba2abc004
 </TASK>