Extracting prog: 1m45.989563335s
Minimizing prog: 12m52.982426655s
Simplifying prog options: 1m55.696254409s
Extracting C: 54.014936845s
Simplifying C: 0s


1 programs, 3 VMs, 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:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program crashed: KASAN: slab-use-after-free Read in __hci_req_sync
single: successfully extracted reproducer
found reproducer with 12 syscalls
minimizing guilty program
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
ioctl$PTP_SYS_OFFSET_EXTENDED(0xffffffffffffffff, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r1 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r1, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
close(0xffffffffffffffff)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r1 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r1, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
socket$inet6_udplite(0xa, 0x2, 0x88)
r0 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r0)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r1 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r1, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(0xffffffffffffffff, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r0 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r0)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r1 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r1, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(0x0, 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, 0x0, 0x0)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x0, 0x0, 0x0}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
program did not crash
simplifying guilty program options
testing program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true 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}}): openat$ptp0-syz_open_dev$mouse-ioctl$PTP_SYS_OFFSET_EXTENDED-socket$inet6_udplite-openat$tun-close-bpf$PROG_LOAD-sendto$inet6-openat$tun-bpf$PROG_LOAD_XDP-openat$ptp0-ioctl$PTP_SYS_OFFSET_EXTENDED
detailed listing:
executing program 0:
r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000540), 0x0, 0x0) (rerun: 64)
syz_open_dev$mouse(&(0x7f0000000200), 0x8000000000000000, 0x10040)
ioctl$PTP_SYS_OFFSET_EXTENDED(r0, 0x3d13, 0x0) (async)
socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x400001, 0x0)
close(r1)
bpf$PROG_LOAD(0x5, 0x0, 0x0)
sendto$inet6(0xffffffffffffffff, 0x0, 0x2, 0x0, &(0x7f0000000140)={0xa, 0x4e23, 0x0, @local, 0x48000000}, 0x1c)
openat$tun(0xffffffffffffff9c, 0x0, 0x1, 0x0)
bpf$PROG_LOAD_XDP(0x5, &(0x7f00000003c0)={0x6, 0x3, 0x0, &(0x7f00000001c0)='GPL\x00'}, 0x90)
r2 = openat$ptp0(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$PTP_SYS_OFFSET_EXTENDED(r2, 0x3d13, 0x0)

program did not crash
reproducing took 17m28.683204301s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: slab-use-after-free in atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
BUG: KASAN: slab-use-after-free in refcount_read include/linux/refcount.h:136 [inline]
BUG: KASAN: slab-use-after-free in skb_unref include/linux/skbuff.h:1222 [inline]
BUG: KASAN: slab-use-after-free in __kfree_skb_reason net/core/skbuff.c:1195 [inline]
BUG: KASAN: slab-use-after-free in kfree_skb_reason+0x41/0x3b0 net/core/skbuff.c:1222
Read of size 4 at addr ffff888029316ae4 by task syz-executor.0/5124

CPU: 1 PID: 5124 Comm: syz-executor.0 Not tainted 6.10.0-rc1-syzkaller-00317-ga693b9c95abd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
 refcount_read include/linux/refcount.h:136 [inline]
 skb_unref include/linux/skbuff.h:1222 [inline]
 __kfree_skb_reason net/core/skbuff.c:1195 [inline]
 kfree_skb_reason+0x41/0x3b0 net/core/skbuff.c:1222
 kfree_skb include/linux/skbuff.h:1257 [inline]
 __hci_req_sync+0x62f/0x950 net/bluetooth/hci_request.c:184
 hci_req_sync+0xa9/0xd0 net/bluetooth/hci_request.c:206
 hci_dev_cmd+0x4c5/0xa50 net/bluetooth/hci_core.c:787
 sock_do_ioctl+0x158/0x460 net/socket.c:1222
 sock_ioctl+0x629/0x8e0 net/socket.c:1341
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
 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
RIP: 0033:0x7fef5407cc4b
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007ffff8fa41b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fef5407cc4b
RDX: 00007ffff8fa4228 RSI: 00000000400448dd RDI: 0000000000000003
RBP: 00005555646a6430 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 00000000fffffff1
 </TASK>

Allocated by task 4477:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3940 [inline]
 slab_alloc_node mm/slub.c:4000 [inline]
 kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4007
 skb_clone+0x20c/0x390 net/core/skbuff.c:2052
 hci_send_cmd_sync net/bluetooth/hci_core.c:4123 [inline]
 hci_cmd_work+0x29e/0x670 net/bluetooth/hci_core.c:4143
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 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

Freed by task 4477:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2195 [inline]
 slab_free mm/slub.c:4436 [inline]
 kmem_cache_free+0x145/0x350 mm/slub.c:4511
 kfree_skb include/linux/skbuff.h:1257 [inline]
 hci_req_sync_complete+0xe7/0x290 net/bluetooth/hci_request.c:109
 hci_event_packet+0xc71/0x1540 net/bluetooth/hci_event.c:7479
 hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4074
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 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

The buggy address belongs to the object at ffff888029316a00
 which belongs to the cache skbuff_head_cache of size 240
The buggy address is located 228 bytes inside of
 freed 240-byte region [ffff888029316a00, ffff888029316af0)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x29316
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffefff(slab)
raw: 00fff00000000000 ffff888018aea780 ffffea0000ba1fc0 dead000000000004
raw: 0000000000000000 00000000800c000c 00000001ffffefff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1, tgid 1 (swapper/0), ts 11344715507, free_ts 10953589034
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1468
 prep_new_page mm/page_alloc.c:1476 [inline]
 get_page_from_freelist+0x2e2d/0x2ee0 mm/page_alloc.c:3402
 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4660
 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
 alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
 alloc_slab_page+0x5f/0x120 mm/slub.c:2264
 allocate_slab+0x5a/0x2e0 mm/slub.c:2427
 new_slab mm/slub.c:2480 [inline]
 ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3666
 __slab_alloc+0x58/0xa0 mm/slub.c:3756
 __slab_alloc_node mm/slub.c:3809 [inline]
 slab_alloc_node mm/slub.c:3988 [inline]
 kmem_cache_alloc_node_noprof+0x1fe/0x320 mm/slub.c:4043
 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:656
 alloc_skb include/linux/skbuff.h:1308 [inline]
 alloc_uevent_skb+0x74/0x230 lib/kobject_uevent.c:289
 uevent_net_broadcast_tagged lib/kobject_uevent.c:352 [inline]
 kobject_uevent_net_broadcast+0x182/0x580 lib/kobject_uevent.c:413
 kobject_uevent_env+0x57d/0x8e0 lib/kobject_uevent.c:593
 netdev_queue_add_kobject net/core/net-sysfs.c:1797 [inline]
 netdev_queue_update_kobjects+0x2c4/0x5f0 net/core/net-sysfs.c:1838
 register_queue_kobjects net/core/net-sysfs.c:1900 [inline]
 netdev_register_kobject+0x265/0x320 net/core/net-sysfs.c:2140
 register_netdevice+0x11d5/0x19e0 net/core/dev.c:10374
 register_netdev+0x3b/0x50 net/core/dev.c:10511
page last free pid 50 tgid 50 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1088 [inline]
 free_unref_page+0xd19/0xea0 mm/page_alloc.c:2565
 vfree+0x186/0x2e0 mm/vmalloc.c:3346
 delayed_vfree_work+0x56/0x80 mm/vmalloc.c:3267
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 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

Memory state around the buggy address:
 ffff888029316980: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
 ffff888029316a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888029316a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
                                                       ^
 ffff888029316b00: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
 ffff888029316b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: slab-use-after-free in atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
BUG: KASAN: slab-use-after-free in refcount_read include/linux/refcount.h:136 [inline]
BUG: KASAN: slab-use-after-free in skb_unref include/linux/skbuff.h:1222 [inline]
BUG: KASAN: slab-use-after-free in __kfree_skb_reason net/core/skbuff.c:1195 [inline]
BUG: KASAN: slab-use-after-free in kfree_skb_reason+0x41/0x3b0 net/core/skbuff.c:1222
Read of size 4 at addr ffff888029316ae4 by task syz-executor.0/5124

CPU: 1 PID: 5124 Comm: syz-executor.0 Not tainted 6.10.0-rc1-syzkaller-00317-ga693b9c95abd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
 refcount_read include/linux/refcount.h:136 [inline]
 skb_unref include/linux/skbuff.h:1222 [inline]
 __kfree_skb_reason net/core/skbuff.c:1195 [inline]
 kfree_skb_reason+0x41/0x3b0 net/core/skbuff.c:1222
 kfree_skb include/linux/skbuff.h:1257 [inline]
 __hci_req_sync+0x62f/0x950 net/bluetooth/hci_request.c:184
 hci_req_sync+0xa9/0xd0 net/bluetooth/hci_request.c:206
 hci_dev_cmd+0x4c5/0xa50 net/bluetooth/hci_core.c:787
 sock_do_ioctl+0x158/0x460 net/socket.c:1222
 sock_ioctl+0x629/0x8e0 net/socket.c:1341
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
 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
RIP: 0033:0x7fef5407cc4b
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007ffff8fa41b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fef5407cc4b
RDX: 00007ffff8fa4228 RSI: 00000000400448dd RDI: 0000000000000003
RBP: 00005555646a6430 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 00000000fffffff1
 </TASK>

Allocated by task 4477:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3940 [inline]
 slab_alloc_node mm/slub.c:4000 [inline]
 kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4007
 skb_clone+0x20c/0x390 net/core/skbuff.c:2052
 hci_send_cmd_sync net/bluetooth/hci_core.c:4123 [inline]
 hci_cmd_work+0x29e/0x670 net/bluetooth/hci_core.c:4143
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 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

Freed by task 4477:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2195 [inline]
 slab_free mm/slub.c:4436 [inline]
 kmem_cache_free+0x145/0x350 mm/slub.c:4511
 kfree_skb include/linux/skbuff.h:1257 [inline]
 hci_req_sync_complete+0xe7/0x290 net/bluetooth/hci_request.c:109
 hci_event_packet+0xc71/0x1540 net/bluetooth/hci_event.c:7479
 hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4074
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 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

The buggy address belongs to the object at ffff888029316a00
 which belongs to the cache skbuff_head_cache of size 240
The buggy address is located 228 bytes inside of
 freed 240-byte region [ffff888029316a00, ffff888029316af0)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x29316
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffefff(slab)
raw: 00fff00000000000 ffff888018aea780 ffffea0000ba1fc0 dead000000000004
raw: 0000000000000000 00000000800c000c 00000001ffffefff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1, tgid 1 (swapper/0), ts 11344715507, free_ts 10953589034
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1468
 prep_new_page mm/page_alloc.c:1476 [inline]
 get_page_from_freelist+0x2e2d/0x2ee0 mm/page_alloc.c:3402
 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4660
 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
 alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
 alloc_slab_page+0x5f/0x120 mm/slub.c:2264
 allocate_slab+0x5a/0x2e0 mm/slub.c:2427
 new_slab mm/slub.c:2480 [inline]
 ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3666
 __slab_alloc+0x58/0xa0 mm/slub.c:3756
 __slab_alloc_node mm/slub.c:3809 [inline]
 slab_alloc_node mm/slub.c:3988 [inline]
 kmem_cache_alloc_node_noprof+0x1fe/0x320 mm/slub.c:4043
 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:656
 alloc_skb include/linux/skbuff.h:1308 [inline]
 alloc_uevent_skb+0x74/0x230 lib/kobject_uevent.c:289
 uevent_net_broadcast_tagged lib/kobject_uevent.c:352 [inline]
 kobject_uevent_net_broadcast+0x182/0x580 lib/kobject_uevent.c:413
 kobject_uevent_env+0x57d/0x8e0 lib/kobject_uevent.c:593
 netdev_queue_add_kobject net/core/net-sysfs.c:1797 [inline]
 netdev_queue_update_kobjects+0x2c4/0x5f0 net/core/net-sysfs.c:1838
 register_queue_kobjects net/core/net-sysfs.c:1900 [inline]
 netdev_register_kobject+0x265/0x320 net/core/net-sysfs.c:2140
 register_netdevice+0x11d5/0x19e0 net/core/dev.c:10374
 register_netdev+0x3b/0x50 net/core/dev.c:10511
page last free pid 50 tgid 50 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1088 [inline]
 free_unref_page+0xd19/0xea0 mm/page_alloc.c:2565
 vfree+0x186/0x2e0 mm/vmalloc.c:3346
 delayed_vfree_work+0x56/0x80 mm/vmalloc.c:3267
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 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

Memory state around the buggy address:
 ffff888029316980: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
 ffff888029316a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888029316a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
                                                       ^
 ffff888029316b00: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
 ffff888029316b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================