Extracting prog: 3m46.868852027s
Minimizing prog: 1h7m46.412487965s
Simplifying prog options: 0s
Extracting C: 1m2.875262722s
Simplifying C: 27m38.68032451s
extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={&(0x7f0000000600)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000050000000900010073797a300000000064000000030a01030000000000000000050000000900010073797a30000000000900030073797a300000000008000a40000000032800048008000240000000120800014000000000140003006e657464657673696d30000000000000080000000000000014000000110001"], 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={&(0x7f0000000bc0)=ANY=[@ANYBLOB="14000000100001f500000000000000000100000a14000000020a497f75241d4e1deb00000500000614000000110001"], 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={&(0x7f0000000600)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000050000000900010073797a300000000064000000030a01030000000000000000050000000900010073797a30000000000900030073797a300000000008000a40000000032800048008000240000000120800014000000000140003006e657464657673696d30000000000000080000000000000014000000110001"], 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={&(0x7f0000000bc0)=ANY=[@ANYBLOB="14000000100001f500000000000000000100000a14000000020a497f75241d4e1deb00000500000614000000110001"], 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={&(0x7f0000000600)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000050000000900010073797a300000000064000000030a01030000000000000000050000000900010073797a30000000000900030073797a300000000008000a40000000032800048008000240000000120800014000000000140003006e657464657673696d30000000000000080000000000000014000000110001"], 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={&(0x7f0000000bc0)=ANY=[@ANYBLOB="14000000100001f500000000000000000100000a14000000020a497f75241d4e1deb00000500000614000000110001"], 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={&(0x7f0000000600)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000050000000900010073797a300000000064000000030a01030000000000000000050000000900010073797a30000000000900030073797a300000000008000a40000000032800048008000240000000120800014000000000140003006e657464657673696d30000000000000080000000000000014000000110001"], 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={&(0x7f0000000bc0)=ANY=[@ANYBLOB="14000000100001f500000000000000000100000a14000000020a497f75241d4e1deb00000500000614000000110001"], 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x0)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={&(0x7f0000000bc0)=ANY=[@ANYBLOB="14000000100001f500000000000000000100000a14000000020a497f75241d4e1deb00000500000614000000110001"], 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={&(0x7f0000000bc0)=ANY=[@ANYBLOB="14000000100001f500000000000000000100000a14000000020a497f75241d4e1deb00000500000614000000110001"], 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={0x0, 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={&(0x7f0000000bc0)=ANY=[@ANYBLOB="14000000100001f500000000000000000100000a14000000020a497f75241d4e1deb00000500000614000000110001"], 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={&(0x7f0000000600)=ANY=[@ANYBLOB], 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={&(0x7f0000000bc0)=ANY=[@ANYBLOB="14000000100001f500000000000000000100000a14000000020a497f75241d4e1deb00000500000614000000110001"], 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={&(0x7f0000000600)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000050000000900010073797a300000000064000000030a01030000000000000000050000000900010073797a30000000000900030073797a300000000008000a40000000032800048008000240000000120800014000000000140003006e657464657673696d30000000000000080000000000000014000000110001"], 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(r0, 0x0, 0xc050)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={&(0x7f0000000600)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000050000000900010073797a300000000064000000030a01030000000000000000050000000900010073797a30000000000900030073797a300000000008000a40000000032800048008000240000000120800014000000000140003006e657464657673696d30000000000000080000000000000014000000110001"], 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={&(0x7f0000000600)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000050000000900010073797a300000000064000000030a01030000000000000000050000000900010073797a30000000000900030073797a300000000008000a40000000032800048008000240000000120800014000000000140003006e657464657673696d30000000000000080000000000000014000000110001"], 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={0x0, 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={&(0x7f0000000600)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000050000000900010073797a300000000064000000030a01030000000000000000050000000900010073797a30000000000900030073797a300000000008000a40000000032800048008000240000000120800014000000000140003006e657464657673696d30000000000000080000000000000014000000110001"], 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={&(0x7f0000000bc0)=ANY=[@ANYBLOB], 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
a never seen crash title: BUG: corrupted list in flow_block_cb_setup_simple, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: general protection fault in flow_block_cb_setup_simple
a never seen crash title: general protection fault in flow_block_cb_setup_simple, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
a never seen crash title: BUG: corrupted list in flow_block_cb_setup_simple, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
a never seen crash title: BUG: corrupted list in flow_block_cb_setup_simple, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
a never seen crash title: BUG: corrupted list in flow_block_cb_setup_simple, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
a never seen crash title: BUG: corrupted list in flow_block_cb_setup_simple, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
a never seen crash title: BUG: corrupted list in flow_block_cb_setup_simple, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
a never seen crash title: BUG: corrupted list in flow_block_cb_setup_simple, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
a never seen crash title: BUG: corrupted list in flow_block_cb_setup_simple, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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:false Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={&(0x7f0000000600)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000050000000900010073797a300000000064000000030a01030000000000000000050000000900010073797a30000000000900030073797a300000000008000a40000000032800048008000240000000120800014000000000140003006e657464657673696d30000000000000080000000000000014000000110001"], 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={&(0x7f0000000bc0)=ANY=[@ANYBLOB="14000000100001f500000000000000000100000a14000000020a497f75241d4e1deb00000500000614000000110001"], 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program crashed: KASAN: slab-use-after-free Read in flow_block_cb_setup_simple
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={&(0x7f0000000600)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000050000000900010073797a300000000064000000030a01030000000000000000050000000900010073797a30000000000900030073797a300000000008000a40000000032800048008000240000000120800014000000000140003006e657464657673696d30000000000000080000000000000014000000110001"], 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={&(0x7f0000000bc0)=ANY=[@ANYBLOB="14000000100001f500000000000000000100000a14000000020a497f75241d4e1deb00000500000614000000110001"], 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program crashed: BUG: corrupted list in flow_block_cb_setup_simple
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f000000c280)={&(0x7f0000000600)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000050000000900010073797a300000000064000000030a01030000000000000000050000000900010073797a30000000000900030073797a300000000008000a40000000032800048008000240000000120800014000000000140003006e657464657673696d30000000000000080000000000000014000000110001"], 0xac}, 0x1, 0x0, 0x0, 0x4008855}, 0x0)
sendmsg$NFT_BATCH(r0, &(0x7f0000000cc0)={0x0, 0x0, &(0x7f0000000ac0)={&(0x7f0000000bc0)=ANY=[@ANYBLOB="14000000100001f500000000000000000100000a14000000020a497f75241d4e1deb00000500000614000000110001"], 0x3c}, 0x1, 0x0, 0x0, 0x2004c040}, 0xc050)
program crashed: general protection fault in flow_block_cb_setup_simple
validation run: crashed=true
reproducing took 1h43m35.739930587s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 2 UID: 0 PID: 6149 Comm: syz.0.109 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:flow_block_cb_is_busy net/core/flow_offload.c:326 [inline]
RIP: 0010:flow_block_cb_setup_simple+0x4e6/0xa20 net/core/flow_offload.c:351
Code: 4c 89 fa 48 c1 ea 03 42 80 3c 2a 00 0f 85 78 03 00 00 4d 8b 3f 4c 39 fd 74 5e e8 75 58 87 f8 49 8d 7f 20 48 89 fa 48 c1 ea 03 <42> 80 3c 2a 00 0f 85 6c 03 00 00 49 3b 5f 20 75 c0 e8 54 58 87 f8
RSP: 0018:ffffc90003346f78 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffffffff87515fc0 RCX: 0000000000000000
RDX: 0000000000000004 RSI: ffffffff898227ab RDI: 0000000000000020
RBP: ffffffff8fdafa20 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003347010
R13: dffffc0000000000 R14: ffff888057b4cec0 R15: 0000000000000000
FS: 0000555577bab500(0000) GS:ffff8880d62e0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000600 CR3: 000000002c1fc000 CR4: 0000000000352ef0
Call Trace:
nsim_setup_tc+0x1af/0x200 drivers/net/netdevsim/tc.c:87
nft_block_offload_cmd+0x144/0x2f0 net/netfilter/nf_tables_offload.c:397
nft_chain_offload_cmd net/netfilter/nf_tables_offload.c:451 [inline]
nft_flow_block_chain+0x175/0x4b0 net/netfilter/nf_tables_offload.c:471
nft_flow_offload_chain net/netfilter/nf_tables_offload.c:513 [inline]
nft_flow_rule_offload_commit+0x535/0x6a0 net/netfilter/nf_tables_offload.c:584
nf_tables_commit+0x5f0/0x92e0 net/netfilter/nf_tables_api.c:10926
nfnetlink_rcv_batch+0x1a4d/0x2880 net/netfilter/nfnetlink.c:574
nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline]
nfnetlink_rcv+0x3bd/0x440 net/netfilter/nfnetlink.c:665
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:775 [inline]
__sock_sendmsg net/socket.c:790 [inline]
____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2684
___sys_sendmsg+0x190/0x1e0 net/socket.c:2738
__sys_sendmsg+0x160/0x210 net/socket.c:2770
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9a3319de59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff6c544c08 EFLAGS: 00000246
ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f9a33425fa0 RCX: 00007f9a3319de59
RDX: 0000000000000000 RSI: 000020000000c2c0 RDI: 0000000000000003
RBP: 00007f9a33233e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9a33425fac R14: 00007f9a33425fa0 R15: 00007f9a33425fa0
Modules linked in:
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: 4c 89 fa mov %r15,%rdx
3: 48 c1 ea 03 shr $0x3,%rdx
7: 42 80 3c 2a 00 cmpb $0x0,(%rdx,%r13,1)
c: 0f 85 78 03 00 00 jne 0x38a
12: 4d 8b 3f mov (%r15),%r15
15: 4c 39 fd cmp %r15,%rbp
18: 74 5e je 0x78
1a: e8 75 58 87 f8 call 0xf8875894
1f: 49 8d 7f 20 lea 0x20(%r15),%rdi
23: 48 89 fa mov %rdi,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 42 80 3c 2a 00 cmpb $0x0,(%rdx,%r13,1) <-- trapping instruction
2f: 0f 85 6c 03 00 00 jne 0x3a1
35: 49 3b 5f 20 cmp 0x20(%r15),%rbx
39: 75 c0 jne 0xfffffffb
3b: e8 54 58 87 f8 call 0xf8875894
final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 2 UID: 0 PID: 6149 Comm: syz.0.109 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:flow_block_cb_is_busy net/core/flow_offload.c:326 [inline]
RIP: 0010:flow_block_cb_setup_simple+0x4e6/0xa20 net/core/flow_offload.c:351
Code: 4c 89 fa 48 c1 ea 03 42 80 3c 2a 00 0f 85 78 03 00 00 4d 8b 3f 4c 39 fd 74 5e e8 75 58 87 f8 49 8d 7f 20 48 89 fa 48 c1 ea 03 <42> 80 3c 2a 00 0f 85 6c 03 00 00 49 3b 5f 20 75 c0 e8 54 58 87 f8
RSP: 0018:ffffc90003346f78 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffffffff87515fc0 RCX: 0000000000000000
RDX: 0000000000000004 RSI: ffffffff898227ab RDI: 0000000000000020
RBP: ffffffff8fdafa20 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003347010
R13: dffffc0000000000 R14: ffff888057b4cec0 R15: 0000000000000000
FS: 0000555577bab500(0000) GS:ffff8880d62e0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000600 CR3: 000000002c1fc000 CR4: 0000000000352ef0
Call Trace:
nsim_setup_tc+0x1af/0x200 drivers/net/netdevsim/tc.c:87
nft_block_offload_cmd+0x144/0x2f0 net/netfilter/nf_tables_offload.c:397
nft_chain_offload_cmd net/netfilter/nf_tables_offload.c:451 [inline]
nft_flow_block_chain+0x175/0x4b0 net/netfilter/nf_tables_offload.c:471
nft_flow_offload_chain net/netfilter/nf_tables_offload.c:513 [inline]
nft_flow_rule_offload_commit+0x535/0x6a0 net/netfilter/nf_tables_offload.c:584
nf_tables_commit+0x5f0/0x92e0 net/netfilter/nf_tables_api.c:10926
nfnetlink_rcv_batch+0x1a4d/0x2880 net/netfilter/nfnetlink.c:574
nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline]
nfnetlink_rcv+0x3bd/0x440 net/netfilter/nfnetlink.c:665
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:775 [inline]
__sock_sendmsg net/socket.c:790 [inline]
____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2684
___sys_sendmsg+0x190/0x1e0 net/socket.c:2738
__sys_sendmsg+0x160/0x210 net/socket.c:2770
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9a3319de59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff6c544c08 EFLAGS: 00000246
ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f9a33425fa0 RCX: 00007f9a3319de59
RDX: 0000000000000000 RSI: 000020000000c2c0 RDI: 0000000000000003
RBP: 00007f9a33233e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9a33425fac R14: 00007f9a33425fa0 R15: 00007f9a33425fa0
Modules linked in:
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: 4c 89 fa mov %r15,%rdx
3: 48 c1 ea 03 shr $0x3,%rdx
7: 42 80 3c 2a 00 cmpb $0x0,(%rdx,%r13,1)
c: 0f 85 78 03 00 00 jne 0x38a
12: 4d 8b 3f mov (%r15),%r15
15: 4c 39 fd cmp %r15,%rbp
18: 74 5e je 0x78
1a: e8 75 58 87 f8 call 0xf8875894
1f: 49 8d 7f 20 lea 0x20(%r15),%rdi
23: 48 89 fa mov %rdi,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 42 80 3c 2a 00 cmpb $0x0,(%rdx,%r13,1) <-- trapping instruction
2f: 0f 85 6c 03 00 00 jne 0x3a1
35: 49 3b 5f 20 cmp 0x20(%r15),%rbx
39: 75 c0 jne 0xfffffffb
3b: e8 54 58 87 f8 call 0xf8875894