Extracting prog: 31.736188936s
Minimizing prog: 14m21.98271669s
Simplifying prog options: 0s
Extracting C: 22.110833461s
Simplifying C: 2m54.210224142s


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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r2 = socket(0x400000000010, 0x3, 0x0)
r3 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r4=>0x0})
sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r4, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, r4, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
socket(0x10, 0x803, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, r3, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r2 = socket(0x400000000010, 0x3, 0x0)
socket$unix(0x1, 0x1, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, 0x0, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, 0x0, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r2 = socket(0x400000000010, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, r3, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, r3, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, r3, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, r3, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, r3, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r2 = socket(0x400000000010, 0x3, 0x0)
r3 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r4=>0x0})
sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r4, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, r4, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, 0x0)
r2 = socket(0x400000000010, 0x3, 0x0)
r3 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r4=>0x0})
sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r4, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, r4, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r2 = socket(0x400000000010, 0x3, 0x0)
r3 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r3, 0x8933, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, 0x0, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, 0x0, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r2 = socket(0x400000000010, 0x3, 0x0)
r3 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r4=>0x0})
sendmsg$nl_route_sched(r2, 0x0, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, r4, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r2 = socket(0x400000000010, 0x3, 0x0)
r3 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r4=>0x0})
sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, 0x0}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, r4, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r2 = socket(0x400000000010, 0x3, 0x0)
r3 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r4=>0x0})
sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={0x0}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000001300)=@newtfilter={0x84, 0x2c, 0xd27, 0x30bd29, 0x2, {0x0, 0x0, 0x0, r4, {0x0, 0xf}, {}, {0x7}}, [@filter_kind_options=@f_matchall={{0xd}, {0x50, 0x2, [@TCA_MATCHALL_ACT={0x4c, 0x2, [@m_gact={0x48, 0x1, 0x0, 0x0, {{0x9}, {0x1c, 0x2, 0x0, 0x1, [@TCA_GACT_PARMS={0x18, 0x2, {0x40, 0x400, 0x5, 0x80, 0x7}}]}, {0x4}, {0xc}, {0xc, 0x8, {0x2, 0x2}}}}]}]}}]}, 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r2 = socket(0x400000000010, 0x3, 0x0)
r3 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r4=>0x0})
sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r4, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, 0x0, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r2 = socket(0x400000000010, 0x3, 0x0)
r3 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r4=>0x0})
sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r4, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
testing program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r2 = socket(0x400000000010, 0x3, 0x0)
r3 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r4=>0x0})
sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r4, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000300)={0x0}, 0x1, 0x0, 0x0, 0x10}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
simplifying C reproducer
testing compiled C program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
testing compiled C program (duration=42.541341291s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
testing compiled C program (duration=42.541341291s, {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:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
testing compiled C program (duration=42.541341291s, {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:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
testing compiled C program (duration=42.541341291s, {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:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
testing compiled C program (duration=42.541341291s, {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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
program crashed: KASAN: slab-out-of-bounds Read in tc_setup_flow_action
reproducing took 18m10.039981249s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in is_tcf_tunnel_set include/net/tc_act/tc_tunnel_key.h:33 [inline]
BUG: KASAN: slab-out-of-bounds in tc_setup_flow_action+0xb9d/0x3430 net/sched/cls_api.c:3625
Read of size 8 at addr ffff88810cc44fc0 by task syz-executor129/287

CPU: 1 PID: 287 Comm: syz-executor129 Not tainted 5.15.173-syzkaller-00213-gaf461d0249a8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1c0 lib/dump_stack.c:106
 print_address_description+0x87/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0x179/0x1c0 mm/kasan/report.c:444
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 is_tcf_tunnel_set include/net/tc_act/tc_tunnel_key.h:33 [inline]
 tc_setup_flow_action+0xb9d/0x3430 net/sched/cls_api.c:3625
 mall_replace_hw_filter+0x394/0xc20 net/sched/cls_matchall.c:100
 mall_change+0x56e/0x780 net/sched/cls_matchall.c:235
 tc_new_tfilter+0x151a/0x1c00 net/sched/cls_api.c:2131
 rtnetlink_rcv_msg+0x776/0xc40 net/core/rtnetlink.c:5638
 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2493
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5665
 netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline]
 netlink_unicast+0x8df/0xac0 net/netlink/af_netlink.c:1341
 netlink_sendmsg+0xa0a/0xd20 net/netlink/af_netlink.c:1909
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2436
 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2490
 __sys_sendmsg net/socket.c:2519 [inline]
 __do_sys_sendmsg net/socket.c:2528 [inline]
 __se_sys_sendmsg+0x19a/0x260 net/socket.c:2526
 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2526
 x64_sys_call+0x16a/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2801dad829
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd1f7e22e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ffd1f7e24b8 RCX: 00007f2801dad829
RDX: 0000000000000000 RSI: 0000000020000580 RDI: 0000000000000003
RBP: 00007f2801e20610 R08: 0000000000000001 R09: 00007ffd1f7e24b8
R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd1f7e24a8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Allocated by task 287:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:433 [inline]
 ____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:512
 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521
 kasan_kmalloc include/linux/kasan.h:227 [inline]
 __kmalloc+0x13f/0x2c0 mm/slub.c:4431
 kmalloc include/linux/slab.h:608 [inline]
 kzalloc include/linux/slab.h:733 [inline]
 tcf_idr_create+0x5f/0x780 net/sched/act_api.c:478
 tcf_idr_create_from_flags+0x5f/0x70 net/sched/act_api.c:536
 tcf_gact_init+0x3cd/0x6e0 net/sched/act_gact.c:102
 tcf_action_init_1+0x50f/0x7f0 net/sched/act_api.c:1071
 tcf_action_init+0x306/0x840 net/sched/act_api.c:1130
 tcf_exts_validate+0x236/0x520 net/sched/cls_api.c:3073
 mall_set_parms+0x44/0x4b0 net/sched/cls_matchall.c:171
 mall_change+0x495/0x780 net/sched/cls_matchall.c:229
 tc_new_tfilter+0x151a/0x1c00 net/sched/cls_api.c:2131
 rtnetlink_rcv_msg+0x776/0xc40 net/core/rtnetlink.c:5638
 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2493
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5665
 netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline]
 netlink_unicast+0x8df/0xac0 net/netlink/af_netlink.c:1341
 netlink_sendmsg+0xa0a/0xd20 net/netlink/af_netlink.c:1909
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2436
 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2490
 __sys_sendmsg net/socket.c:2519 [inline]
 __do_sys_sendmsg net/socket.c:2528 [inline]
 __se_sys_sendmsg+0x19a/0x260 net/socket.c:2526
 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2526
 x64_sys_call+0x16a/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff88810cc44f00
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 0 bytes to the right of
 192-byte region [ffff88810cc44f00, ffff88810cc44fc0)
The buggy address belongs to the page:
page:ffffea0004331100 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10cc44
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 ffffea000431a100 0000000e0000000e ffff888100042c00
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 71, ts 4001153742, free_ts 4000960671
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2605
 prep_new_page+0x1b/0x110 mm/page_alloc.c:2611
 get_page_from_freelist+0x3550/0x35d0 mm/page_alloc.c:4485
 __alloc_pages+0x27e/0x8f0 mm/page_alloc.c:5780
 allocate_slab mm/slub.c:1932 [inline]
 new_slab+0x9a/0x4e0 mm/slub.c:1995
 ___slab_alloc+0x39e/0x830 mm/slub.c:3028
 __slab_alloc+0x4a/0x90 mm/slub.c:3115
 slab_alloc_node mm/slub.c:3206 [inline]
 slab_alloc mm/slub.c:3250 [inline]
 kmem_cache_alloc_trace+0x147/0x270 mm/slub.c:3267
 kmalloc include/linux/slab.h:603 [inline]
 kzalloc include/linux/slab.h:733 [inline]
 alloc_fs_context+0x65/0x830 fs/fs_context.c:257
 fs_context_for_mount+0x24/0x30 fs/fs_context.c:304
 do_new_mount+0x15c/0xb30 fs/namespace.c:2991
 path_mount+0x671/0x1070 fs/namespace.c:3342
 do_mount fs/namespace.c:3355 [inline]
 __do_sys_mount fs/namespace.c:3563 [inline]
 __se_sys_mount+0x2c4/0x3b0 fs/namespace.c:3540
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3540
 x64_sys_call+0x49d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1472 [inline]
 free_pcp_prepare mm/page_alloc.c:1544 [inline]
 free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3534
 free_unref_page+0xe8/0x750 mm/page_alloc.c:3616
 free_the_page mm/page_alloc.c:805 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5856
 free_pages+0x7c/0x90 mm/page_alloc.c:5867
 selinux_genfs_get_sid+0x24d/0x2a0 security/selinux/hooks.c:1375
 inode_doinit_with_dentry+0x8d2/0x1070 security/selinux/hooks.c:1570
 selinux_d_instantiate+0x27/0x40 security/selinux/hooks.c:6489
 security_d_instantiate+0x9f/0x100 security/security.c:2074
 d_splice_alias+0x6d/0x390 fs/dcache.c:3071
 kernfs_iop_lookup+0x29e/0x2f0 fs/kernfs/dir.c:1175
 __lookup_slow+0x2b9/0x400 fs/namei.c:1663
 lookup_slow+0x5a/0x80 fs/namei.c:1680
 walk_component+0x48c/0x610 fs/namei.c:1976
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x16d/0x450 fs/namei.c:2455
 filename_lookup+0x230/0x5c0 fs/namei.c:2484
 user_path_at_empty+0x43/0x1a0 fs/namei.c:2883

Memory state around the buggy address:
 ffff88810cc44e80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
 ffff88810cc44f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88810cc44f80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
                                           ^
 ffff88810cc45000: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
 ffff88810cc45080: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in is_tcf_tunnel_set include/net/tc_act/tc_tunnel_key.h:33 [inline]
BUG: KASAN: slab-out-of-bounds in tc_setup_flow_action+0xb9d/0x3430 net/sched/cls_api.c:3625
Read of size 8 at addr ffff88810cc44fc0 by task syz-executor129/287

CPU: 1 PID: 287 Comm: syz-executor129 Not tainted 5.15.173-syzkaller-00213-gaf461d0249a8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1c0 lib/dump_stack.c:106
 print_address_description+0x87/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0x179/0x1c0 mm/kasan/report.c:444
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 is_tcf_tunnel_set include/net/tc_act/tc_tunnel_key.h:33 [inline]
 tc_setup_flow_action+0xb9d/0x3430 net/sched/cls_api.c:3625
 mall_replace_hw_filter+0x394/0xc20 net/sched/cls_matchall.c:100
 mall_change+0x56e/0x780 net/sched/cls_matchall.c:235
 tc_new_tfilter+0x151a/0x1c00 net/sched/cls_api.c:2131
 rtnetlink_rcv_msg+0x776/0xc40 net/core/rtnetlink.c:5638
 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2493
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5665
 netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline]
 netlink_unicast+0x8df/0xac0 net/netlink/af_netlink.c:1341
 netlink_sendmsg+0xa0a/0xd20 net/netlink/af_netlink.c:1909
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2436
 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2490
 __sys_sendmsg net/socket.c:2519 [inline]
 __do_sys_sendmsg net/socket.c:2528 [inline]
 __se_sys_sendmsg+0x19a/0x260 net/socket.c:2526
 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2526
 x64_sys_call+0x16a/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2801dad829
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd1f7e22e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ffd1f7e24b8 RCX: 00007f2801dad829
RDX: 0000000000000000 RSI: 0000000020000580 RDI: 0000000000000003
RBP: 00007f2801e20610 R08: 0000000000000001 R09: 00007ffd1f7e24b8
R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd1f7e24a8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Allocated by task 287:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:433 [inline]
 ____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:512
 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521
 kasan_kmalloc include/linux/kasan.h:227 [inline]
 __kmalloc+0x13f/0x2c0 mm/slub.c:4431
 kmalloc include/linux/slab.h:608 [inline]
 kzalloc include/linux/slab.h:733 [inline]
 tcf_idr_create+0x5f/0x780 net/sched/act_api.c:478
 tcf_idr_create_from_flags+0x5f/0x70 net/sched/act_api.c:536
 tcf_gact_init+0x3cd/0x6e0 net/sched/act_gact.c:102
 tcf_action_init_1+0x50f/0x7f0 net/sched/act_api.c:1071
 tcf_action_init+0x306/0x840 net/sched/act_api.c:1130
 tcf_exts_validate+0x236/0x520 net/sched/cls_api.c:3073
 mall_set_parms+0x44/0x4b0 net/sched/cls_matchall.c:171
 mall_change+0x495/0x780 net/sched/cls_matchall.c:229
 tc_new_tfilter+0x151a/0x1c00 net/sched/cls_api.c:2131
 rtnetlink_rcv_msg+0x776/0xc40 net/core/rtnetlink.c:5638
 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2493
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5665
 netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline]
 netlink_unicast+0x8df/0xac0 net/netlink/af_netlink.c:1341
 netlink_sendmsg+0xa0a/0xd20 net/netlink/af_netlink.c:1909
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2436
 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2490
 __sys_sendmsg net/socket.c:2519 [inline]
 __do_sys_sendmsg net/socket.c:2528 [inline]
 __se_sys_sendmsg+0x19a/0x260 net/socket.c:2526
 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2526
 x64_sys_call+0x16a/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff88810cc44f00
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 0 bytes to the right of
 192-byte region [ffff88810cc44f00, ffff88810cc44fc0)
The buggy address belongs to the page:
page:ffffea0004331100 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10cc44
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 ffffea000431a100 0000000e0000000e ffff888100042c00
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 71, ts 4001153742, free_ts 4000960671
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2605
 prep_new_page+0x1b/0x110 mm/page_alloc.c:2611
 get_page_from_freelist+0x3550/0x35d0 mm/page_alloc.c:4485
 __alloc_pages+0x27e/0x8f0 mm/page_alloc.c:5780
 allocate_slab mm/slub.c:1932 [inline]
 new_slab+0x9a/0x4e0 mm/slub.c:1995
 ___slab_alloc+0x39e/0x830 mm/slub.c:3028
 __slab_alloc+0x4a/0x90 mm/slub.c:3115
 slab_alloc_node mm/slub.c:3206 [inline]
 slab_alloc mm/slub.c:3250 [inline]
 kmem_cache_alloc_trace+0x147/0x270 mm/slub.c:3267
 kmalloc include/linux/slab.h:603 [inline]
 kzalloc include/linux/slab.h:733 [inline]
 alloc_fs_context+0x65/0x830 fs/fs_context.c:257
 fs_context_for_mount+0x24/0x30 fs/fs_context.c:304
 do_new_mount+0x15c/0xb30 fs/namespace.c:2991
 path_mount+0x671/0x1070 fs/namespace.c:3342
 do_mount fs/namespace.c:3355 [inline]
 __do_sys_mount fs/namespace.c:3563 [inline]
 __se_sys_mount+0x2c4/0x3b0 fs/namespace.c:3540
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3540
 x64_sys_call+0x49d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1472 [inline]
 free_pcp_prepare mm/page_alloc.c:1544 [inline]
 free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3534
 free_unref_page+0xe8/0x750 mm/page_alloc.c:3616
 free_the_page mm/page_alloc.c:805 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5856
 free_pages+0x7c/0x90 mm/page_alloc.c:5867
 selinux_genfs_get_sid+0x24d/0x2a0 security/selinux/hooks.c:1375
 inode_doinit_with_dentry+0x8d2/0x1070 security/selinux/hooks.c:1570
 selinux_d_instantiate+0x27/0x40 security/selinux/hooks.c:6489
 security_d_instantiate+0x9f/0x100 security/security.c:2074
 d_splice_alias+0x6d/0x390 fs/dcache.c:3071
 kernfs_iop_lookup+0x29e/0x2f0 fs/kernfs/dir.c:1175
 __lookup_slow+0x2b9/0x400 fs/namei.c:1663
 lookup_slow+0x5a/0x80 fs/namei.c:1680
 walk_component+0x48c/0x610 fs/namei.c:1976
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x16d/0x450 fs/namei.c:2455
 filename_lookup+0x230/0x5c0 fs/namei.c:2484
 user_path_at_empty+0x43/0x1a0 fs/namei.c:2883

Memory state around the buggy address:
 ffff88810cc44e80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
 ffff88810cc44f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88810cc44f80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
                                           ^
 ffff88810cc45000: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
 ffff88810cc45080: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
==================================================================