Extracting prog: 1m11.342119705s
Minimizing prog: 18m37.884438924s
Simplifying prog options: 0s
Extracting C: 59.020816176s
Simplifying C: 9m4.161148947s


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: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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000)="01", 0x1)

program crashed: KASAN: use-after-free Read in netem_enqueue
single: successfully extracted reproducer
found reproducer with 10 syscalls
minimizing guilty program
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
write(r3, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, 0xffffffffffffffff, 0x0)
write(0xffffffffffffffff, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
socket$nl_route(0x10, 0x3, 0x0)
r0 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r0, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
r1 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r1, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r1, 0x0)
write(r1, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, 0x0, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r2 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r2, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r2, 0x0)
write(r2, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(0xffffffffffffffff, &(0x7f00000000c0)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r2 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r2, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r2, 0x0)
write(r2, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r0, &(0x7f00000000c0)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r2 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r2, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r2, 0x0)
write(r2, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, 0x0, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, 0x0}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000)="01", 0x1)

VM was preempted during syz execution: failed to run command in VM: instance is preempted, retrying
program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, 0x0, &(0x7f0000000180))
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, 0x0, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r2 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r2, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r2, 0x0)
write(r2, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, 0x0, 0x4000080)
r2 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r2, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r2, 0x0)
write(r2, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x4000080)
r2 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r2, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r2, 0x0)
write(r2, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x4000080)
r2 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r2, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r2, 0x0)
write(r2, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, 0x0, 0x0)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, 0x0, 0x0)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000)="01", 0x1)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, 0x0, 0x0)

program did not crash
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000), 0x0)

program did not crash
extracting C reproducer
testing compiled C 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program crashed: KASAN: use-after-free Read in netem_enqueue
simplifying C reproducer
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program crashed: KASAN: use-after-free Read in netem_enqueue
testing compiled C program (duration=30s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program crashed: KASAN: use-after-free Read in netem_enqueue
testing compiled C program (duration=30s, {Threaded:false Repeat:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program crashed: KASAN: use-after-free Read in netem_enqueue
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program crashed: KASAN: use-after-free Read in netem_enqueue
testing compiled C program (duration=30s, {Threaded:false Repeat:true 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program crashed: KASAN: use-after-free Read in netem_enqueue
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program crashed: KASAN: use-after-free Read in netem_enqueue
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program crashed: KASAN: use-after-free Read in netem_enqueue
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program crashed: KASAN: use-after-free Read in netem_enqueue
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program crashed: KASAN: use-after-free Read in netem_enqueue
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program crashed: KASAN: use-after-free Read in netem_enqueue
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
program crashed: KASAN: use-after-free Read in netem_enqueue
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000)="01", 0x1)

program crashed: KASAN: use-after-free Read in netem_enqueue
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000)="01", 0x1)

program crashed: KASAN: use-after-free Read in netem_enqueue
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket-sendmsg$nl_route_sched-getsockname$packet-sendmsg$nl_route_sched-socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x10, 0x803, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f00000004c0)={0x0, 0x0, &(0x7f00000003c0)={0x0, 0x24}}, 0x0)
getsockname$packet(r1, &(0x7f00000000c0)={0x11, 0x0, <r2=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000180)=0x14)
sendmsg$nl_route_sched(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=@newqdisc={0x58, 0x24, 0xe0b, 0x0, 0xfffffffc, {0x0, 0x0, 0x0, r2, {0x0, 0xffff}, {0xffff, 0xffff}, {0x1}}, [@qdisc_kind_options=@q_netem={{0xa}, {0x28, 0x2, {{0x1, 0x6, 0xa00, 0x3, 0xffffffff, 0x20102}, [@TCA_NETEM_CORRUPT={0xc, 0x4, {0x7fffffff, 0x155}}]}}}]}, 0x58}}, 0x4000080)
r3 = socket$packet(0x11, 0x2, 0x300)
bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, 0x2, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r3, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r3, 0x0)
write(r3, &(0x7f0000000000)="01", 0x1)

program crashed: KASAN: use-after-free Read in netem_enqueue
validation run: crashed=true
reproducing took 32m17.546351934s
repro crashed as (corrupted=false):
skb len=0 headroom=128 headlen=0 tailroom=512
mac=(128,0) net=(128,-1) trans=-1
shinfo(txflags=0 nr_frags=0 gso(size=0 type=0 segs=0))
csum(0x0 ip_summed=0 complete_sw=0 valid=0 level=0)
hash(0x0 sw=0 l4=0) proto=0x0003 pkttype=0 iif=0
dev name=tunl0 feat=0x00000006401d7869
sk family=17 type=2 proto=0
==================================================================
BUG: KASAN: use-after-free in netem_enqueue+0x3190/0x3770 net/sched/sch_netem.c:511
Read of size 1 at addr ffff8881bdd920a2 by task syz.2.17/373

CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G        W          syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 print_address_description+0x71/0x200 mm/kasan/report.c:316
 print_report+0x4a/0x60 mm/kasan/report.c:420
 kasan_report+0x122/0x150 mm/kasan/report.c:524
 __asan_report_load1_noabort+0x14/0x20 mm/kasan/report_generic.c:348
 netem_enqueue+0x3190/0x3770 net/sched/sch_netem.c:511
 netem_enqueue+0x1945/0x3770 net/sched/sch_netem.c:534
 dev_qdisc_enqueue net/core/dev.c:3911 [inline]
 __dev_xmit_skb net/core/dev.c:4000 [inline]
 __dev_queue_xmit+0xef7/0x3540 net/core/dev.c:4348
 dev_queue_xmit+0x17/0x20 include/linux/netdevice.h:3085
 tpacket_snd net/packet/af_packet.c:2936 [inline]
 packet_sendmsg+0x2416/0x51b0 net/packet/af_packet.c:3162
 sock_sendmsg_nosec net/socket.c:716 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 sock_write_iter+0x2ea/0x3f0 net/socket.c:1134
 call_write_iter include/linux/fs.h:2282 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5ef/0xd00 fs/read_write.c:584
 ksys_write+0x14a/0x260 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 x64_sys_call+0x27b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fdd3fb9e199
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:00007ffe40b20eb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fdd3fe25fa0 RCX: 00007fdd3fb9e199
RDX: 0000000000000001 RSI: 0000200000000000 RDI: 0000000000000005
RBP: 00007fdd3fc358e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdd3fe25fac R14: 00007fdd3fe25fa0 R15: 00007fdd3fe25fa0
 </TASK>

The buggy address belongs to the physical page:
page:ffffea0006f76480 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1bdd92
flags: 0x4000000000000000(zone=1)
raw: 4000000000000000 ffffea0006f76488 ffffea0006f76488 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)

Memory state around the buggy address:
 ffff8881bdd91f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8881bdd92000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8881bdd92080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                               ^
 ffff8881bdd92100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8881bdd92180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================

final repro crashed as (corrupted=false):
skb len=0 headroom=128 headlen=0 tailroom=512
mac=(128,0) net=(128,-1) trans=-1
shinfo(txflags=0 nr_frags=0 gso(size=0 type=0 segs=0))
csum(0x0 ip_summed=0 complete_sw=0 valid=0 level=0)
hash(0x0 sw=0 l4=0) proto=0x0003 pkttype=0 iif=0
dev name=tunl0 feat=0x00000006401d7869
sk family=17 type=2 proto=0
==================================================================
BUG: KASAN: use-after-free in netem_enqueue+0x3190/0x3770 net/sched/sch_netem.c:511
Read of size 1 at addr ffff8881bdd920a2 by task syz.2.17/373

CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G        W          syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 print_address_description+0x71/0x200 mm/kasan/report.c:316
 print_report+0x4a/0x60 mm/kasan/report.c:420
 kasan_report+0x122/0x150 mm/kasan/report.c:524
 __asan_report_load1_noabort+0x14/0x20 mm/kasan/report_generic.c:348
 netem_enqueue+0x3190/0x3770 net/sched/sch_netem.c:511
 netem_enqueue+0x1945/0x3770 net/sched/sch_netem.c:534
 dev_qdisc_enqueue net/core/dev.c:3911 [inline]
 __dev_xmit_skb net/core/dev.c:4000 [inline]
 __dev_queue_xmit+0xef7/0x3540 net/core/dev.c:4348
 dev_queue_xmit+0x17/0x20 include/linux/netdevice.h:3085
 tpacket_snd net/packet/af_packet.c:2936 [inline]
 packet_sendmsg+0x2416/0x51b0 net/packet/af_packet.c:3162
 sock_sendmsg_nosec net/socket.c:716 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 sock_write_iter+0x2ea/0x3f0 net/socket.c:1134
 call_write_iter include/linux/fs.h:2282 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5ef/0xd00 fs/read_write.c:584
 ksys_write+0x14a/0x260 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 x64_sys_call+0x27b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fdd3fb9e199
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:00007ffe40b20eb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fdd3fe25fa0 RCX: 00007fdd3fb9e199
RDX: 0000000000000001 RSI: 0000200000000000 RDI: 0000000000000005
RBP: 00007fdd3fc358e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdd3fe25fac R14: 00007fdd3fe25fa0 R15: 00007fdd3fe25fa0
 </TASK>

The buggy address belongs to the physical page:
page:ffffea0006f76480 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1bdd92
flags: 0x4000000000000000(zone=1)
raw: 4000000000000000 ffffea0006f76488 ffffea0006f76488 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)

Memory state around the buggy address:
 ffff8881bdd91f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8881bdd92000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8881bdd92080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                               ^
 ffff8881bdd92100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8881bdd92180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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