Extracting prog: 2m42.347240254s
Minimizing prog: 1h3m39.063384006s
Simplifying prog options: 0s
Extracting C: 41.166081193s
Simplifying C: 20m10.577061014s


1 programs, timeouts [15s 1m40s 6m0s]
extracting reproducer from 1 programs
single: executing 1 programs separately with timeout 15s
testing program (duration=15s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r1, 0x88, 0x40, 0x0, 0x300)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r2, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r3 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r3, 0x40047438, &(0x7f0000000180)=""/246)
r4 = dup(r3)
ioctl$PPPIOCCONNECT(r4, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r1, 0x88, 0x40, 0x0, 0x300)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r2, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r3 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r3, 0x40047438, &(0x7f0000000180)=""/246)
r4 = dup(r3)
ioctl$PPPIOCCONNECT(r4, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program crashed: inconsistent lock state in valid_state
single: successfully extracted reproducer
found reproducer with 13 syscalls
minimizing guilty program
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r1, 0x88, 0x40, 0x0, 0x300)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r2, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r3 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r3, 0x40047438, &(0x7f0000000180)=""/246)
r4 = dup(r3)
ioctl$PPPIOCCONNECT(r4, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r1, 0x88, 0x40, 0x0, 0x300)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r2, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r3 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r3, 0x40047438, &(0x7f0000000180)=""/246)
r4 = dup(r3)
ioctl$PPPIOCCONNECT(r4, 0x40047435, &(0x7f00000002c0)=0x2)
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r1, 0x88, 0x40, 0x0, 0x300)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r2, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r3 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r3, 0x40047438, &(0x7f0000000180)=""/246)
dup(r3)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r1, 0x88, 0x40, 0x0, 0x300)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r2, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r3 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r3, 0x40047438, &(0x7f0000000180)=""/246)
ioctl$PPPIOCCONNECT(0xffffffffffffffff, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r1, 0x88, 0x40, 0x0, 0x300)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r2, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r3 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
r4 = dup(r3)
ioctl$PPPIOCCONNECT(r4, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r1, 0x88, 0x40, 0x0, 0x300)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r2, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
ioctl$EVIOCGPROP(0xffffffffffffffff, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(0xffffffffffffffff)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r1, 0x88, 0x40, 0x0, 0x300)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r2, 0x5423, &(0x7f0000000080)=0xe)
r3 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r3, 0x40047438, &(0x7f0000000180)=""/246)
r4 = dup(r3)
ioctl$PPPIOCCONNECT(r4, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-connect$pppoe-openat$ptmx-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r1, 0x88, 0x40, 0x0, 0x300)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-connect$pppoe-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r1, 0x88, 0x40, 0x0, 0x300)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
ioctl$TIOCSETD(0xffffffffffffffff, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r1, 0x88, 0x40, 0x0, 0x300)
r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r2, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r3 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r3, 0x40047438, &(0x7f0000000180)=""/246)
r4 = dup(r3)
ioctl$PPPIOCCONNECT(r4, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-socket$inet6_udp-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r1, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program crashed: inconsistent lock state in valid_state
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r1, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program crashed: inconsistent lock state in valid_state
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
connect$pppoe(0xffffffffffffffff, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r1 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r1, 0x40047438, &(0x7f0000000180)=""/246)
r2 = dup(r1)
ioctl$PPPIOCCONNECT(r2, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(0xffffffffffffffff, 0x80047437, &(0x7f0000001f00))
sendmmsg(0xffffffffffffffff, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
connect$pppoe(r0, 0x0, 0x0)
r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r1, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r1 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$TIOCSETD(r1, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r1, 0x5423, 0x0)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r1, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r1, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ppp(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r1, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, 0x0)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r1, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, 0x0)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r1, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, 0x0)
sendmmsg(r0, &(0x7f0000001cc0), 0x400000000000026, 0x0)

program did not crash
testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
detailed listing:
executing program 0:
r0 = socket$pppoe(0x18, 0x1, 0x0)
connect$pppoe(r0, &(0x7f0000000400)={0x18, 0x0, {0x2, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'lo\x00'}}, 0x1e)
r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCSETD(r1, 0x5423, &(0x7f0000000080)=0xe)
bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$EVIOCGPROP(r2, 0x40047438, &(0x7f0000000180)=""/246)
r3 = dup(r2)
ioctl$PPPIOCCONNECT(r3, 0x40047435, &(0x7f00000002c0)=0x2)
ioctl$PPPIOCGCHAN(r0, 0x80047437, &(0x7f0000001f00))
sendmmsg(r0, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
simplifying C reproducer
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program did not crash
testing compiled C program (duration=2m30s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program did not crash
testing compiled C program (duration=2m30s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program did not crash
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
testing compiled C program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppoe-connect$pppoe-openat$ptmx-ioctl$TIOCSETD-bpf$PROG_LOAD-openat$ppp-ioctl$EVIOCGPROP-dup-ioctl$PPPIOCCONNECT-ioctl$PPPIOCGCHAN-sendmmsg
program crashed: inconsistent lock state in valid_state
reproducing took 1h27m13.153784646s
repro crashed as (corrupted=false):
================================
WARNING: inconsistent lock state
6.11.0-rc4-syzkaller-00019-gb311c1b497e5 #0 Not tainted
--------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
ksoftirqd/0/16 [HC0[0]:SC1[1]:HE1:SE0] takes:
ffff888039c531e0 (&pch->downl){+.?.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
ffff888039c531e0 (&pch->downl){+.?.}-{2:2}, at: ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2272 [inline]
ffff888039c531e0 (&pch->downl){+.?.}-{2:2}, at: ppp_input+0x18b/0xa10 drivers/net/ppp/ppp_generic.c:2304
{SOFTIRQ-ON-W} state was registered at:
  lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759
  __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
  _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
  spin_lock include/linux/spinlock.h:351 [inline]
  ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2272 [inline]
  ppp_input+0x18b/0xa10 drivers/net/ppp/ppp_generic.c:2304
  pppoe_rcv_core+0x117/0x310 drivers/net/ppp/pppoe.c:379
  sk_backlog_rcv include/net/sock.h:1111 [inline]
  __release_sock+0x243/0x350 net/core/sock.c:3004
  release_sock+0x61/0x1f0 net/core/sock.c:3558
  pppoe_sendmsg+0xd5/0x750 drivers/net/ppp/pppoe.c:903
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x221/0x270 net/socket.c:745
  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597
  ___sys_sendmsg net/socket.c:2651 [inline]
  __sys_sendmmsg+0x3b2/0x740 net/socket.c:2737
  __do_sys_sendmmsg net/socket.c:2766 [inline]
  __se_sys_sendmmsg net/socket.c:2763 [inline]
  __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
  entry_SYSCALL_64_after_hwframe+0x77/0x7f
irq event stamp: 1309336
hardirqs last  enabled at (1309336): [<ffffffff8bc0d5ff>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (1309336): [<ffffffff8bc0d5ff>] _raw_spin_unlock_irqrestore+0x8f/0x140 kernel/locking/spinlock.c:194
hardirqs last disabled at (1309335): [<ffffffff8bc0d300>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (1309335): [<ffffffff8bc0d300>] _raw_spin_lock_irqsave+0xb0/0x120 kernel/locking/spinlock.c:162
softirqs last  enabled at (1309326): [<ffffffff81578ffa>] run_ksoftirqd+0xca/0x130 kernel/softirq.c:928
softirqs last disabled at (1309331): [<ffffffff81578ffa>] run_ksoftirqd+0xca/0x130 kernel/softirq.c:928

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&pch->downl);
  <Interrupt>
    lock(&pch->downl);

 *** DEADLOCK ***

1 lock held by ksoftirqd/0/16:
 #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
 #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
 #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2267 [inline]
 #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: ppp_input+0x55/0xa10 drivers/net/ppp/ppp_generic.c:2304

stack backtrace:
CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.11.0-rc4-syzkaller-00019-gb311c1b497e5 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
 valid_state+0x13a/0x1c0 kernel/locking/lockdep.c:4012
 mark_lock_irq+0xbb/0xc20 kernel/locking/lockdep.c:4215
 mark_lock+0x223/0x350 kernel/locking/lockdep.c:4677
 __lock_acquire+0xbf9/0x2040 kernel/locking/lockdep.c:5096
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2272 [inline]
 ppp_input+0x18b/0xa10 drivers/net/ppp/ppp_generic.c:2304
 ppp_sync_process+0x71/0x160 drivers/net/ppp/ppp_synctty.c:490
 tasklet_action_common+0x321/0x4d0 kernel/softirq.c:785
 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:928
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

final repro crashed as (corrupted=false):
================================
WARNING: inconsistent lock state
6.11.0-rc4-syzkaller-00019-gb311c1b497e5 #0 Not tainted
--------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
ksoftirqd/0/16 [HC0[0]:SC1[1]:HE1:SE0] takes:
ffff888039c531e0 (&pch->downl){+.?.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
ffff888039c531e0 (&pch->downl){+.?.}-{2:2}, at: ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2272 [inline]
ffff888039c531e0 (&pch->downl){+.?.}-{2:2}, at: ppp_input+0x18b/0xa10 drivers/net/ppp/ppp_generic.c:2304
{SOFTIRQ-ON-W} state was registered at:
  lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759
  __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
  _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
  spin_lock include/linux/spinlock.h:351 [inline]
  ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2272 [inline]
  ppp_input+0x18b/0xa10 drivers/net/ppp/ppp_generic.c:2304
  pppoe_rcv_core+0x117/0x310 drivers/net/ppp/pppoe.c:379
  sk_backlog_rcv include/net/sock.h:1111 [inline]
  __release_sock+0x243/0x350 net/core/sock.c:3004
  release_sock+0x61/0x1f0 net/core/sock.c:3558
  pppoe_sendmsg+0xd5/0x750 drivers/net/ppp/pppoe.c:903
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x221/0x270 net/socket.c:745
  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597
  ___sys_sendmsg net/socket.c:2651 [inline]
  __sys_sendmmsg+0x3b2/0x740 net/socket.c:2737
  __do_sys_sendmmsg net/socket.c:2766 [inline]
  __se_sys_sendmmsg net/socket.c:2763 [inline]
  __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
  entry_SYSCALL_64_after_hwframe+0x77/0x7f
irq event stamp: 1309336
hardirqs last  enabled at (1309336): [<ffffffff8bc0d5ff>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (1309336): [<ffffffff8bc0d5ff>] _raw_spin_unlock_irqrestore+0x8f/0x140 kernel/locking/spinlock.c:194
hardirqs last disabled at (1309335): [<ffffffff8bc0d300>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (1309335): [<ffffffff8bc0d300>] _raw_spin_lock_irqsave+0xb0/0x120 kernel/locking/spinlock.c:162
softirqs last  enabled at (1309326): [<ffffffff81578ffa>] run_ksoftirqd+0xca/0x130 kernel/softirq.c:928
softirqs last disabled at (1309331): [<ffffffff81578ffa>] run_ksoftirqd+0xca/0x130 kernel/softirq.c:928

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&pch->downl);
  <Interrupt>
    lock(&pch->downl);

 *** DEADLOCK ***

1 lock held by ksoftirqd/0/16:
 #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
 #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
 #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2267 [inline]
 #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: ppp_input+0x55/0xa10 drivers/net/ppp/ppp_generic.c:2304

stack backtrace:
CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.11.0-rc4-syzkaller-00019-gb311c1b497e5 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
 valid_state+0x13a/0x1c0 kernel/locking/lockdep.c:4012
 mark_lock_irq+0xbb/0xc20 kernel/locking/lockdep.c:4215
 mark_lock+0x223/0x350 kernel/locking/lockdep.c:4677
 __lock_acquire+0xbf9/0x2040 kernel/locking/lockdep.c:5096
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2272 [inline]
 ppp_input+0x18b/0xa10 drivers/net/ppp/ppp_generic.c:2304
 ppp_sync_process+0x71/0x160 drivers/net/ppp/ppp_synctty.c:490
 tasklet_action_common+0x321/0x4d0 kernel/softirq.c:785
 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
 run_ksoftirqd+0xca/0x130 kernel/softirq.c:928
 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>