Extracting prog: 4m3.773474209s
Minimizing prog: 55m23.758988937s
Simplifying prog options: 0s
Extracting C: 1m35.418101413s
Simplifying C: 16m22.83177788s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-mmap-socket-ioctl$sock_SIOCGIFINDEX-syz_usb_control_io$hid-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeef, 0x8031, 0xffffffffffffffff, 0x215eb000)
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
syz_usb_control_io$hid(0xffffffffffffffff, 0x0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program did not crash
program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-mmap-socket-ioctl$sock_SIOCGIFINDEX-syz_usb_control_io$hid-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeef, 0x8031, 0xffffffffffffffff, 0x215eb000)
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
syz_usb_control_io$hid(0xffffffffffffffff, 0x0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program crashed: KASAN: slab-use-after-free Read in sock_def_readable
single: successfully extracted reproducer
found reproducer with 9 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-mmap-socket-ioctl$sock_SIOCGIFINDEX-syz_usb_control_io$hid
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeef, 0x8031, 0xffffffffffffffff, 0x215eb000)
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
syz_usb_control_io$hid(0xffffffffffffffff, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-mmap-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeef, 0x8031, 0xffffffffffffffff, 0x215eb000)
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program crashed: KASAN: slab-use-after-free Read in sock_def_readable
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-mmap-socket-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeef, 0x8031, 0xffffffffffffffff, 0x215eb000)
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-mmap-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeef, 0x8031, 0xffffffffffffffff, 0x215eb000)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x61d0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(0xffffffffffffffff, 0x61e1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program crashed: KASAN: slab-use-after-free Read in sock_def_readable
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, 0x0)
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program crashed: KASAN: slab-use-after-free Read in sock_def_readable
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded: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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program crashed: KASAN: slab-use-after-free Read in sock_def_readable
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program crashed: KASAN: slab-use-after-free Read in sock_def_readable
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program crashed: KASAN: slab-use-after-free Read in sock_def_readable
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program crashed: KASAN: slab-use-after-free Read in sock_def_readable
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program crashed: KASAN: slab-use-after-free Read in sock_def_readable
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program crashed: KASAN: slab-use-after-free Read in sock_def_readable
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program crashed: KASAN: slab-use-after-free Read in sock_def_readable
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/cgroup\x00')
r0 = socket(0x14, 0x2, 0x4)
ioctl$sock_SIOCGIFINDEX(r0, 0x61d0, 0x0)
ioctl$sock_inet6_tcp_SIOCINQ(r0, 0x61e1, 0x0)

program crashed: KASAN: slab-use-after-free Read in sock_def_readable
validation run: crashed=true
reproducing took 1h25m6.638341771s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in list_empty include/linux/list.h:381 [inline]
BUG: KASAN: slab-use-after-free in waitqueue_active include/linux/wait.h:127 [inline]
BUG: KASAN: slab-use-after-free in wq_has_sleeper include/linux/wait.h:161 [inline]
BUG: KASAN: slab-use-after-free in skwq_has_sleeper include/net/sock.h:2404 [inline]
BUG: KASAN: slab-use-after-free in sock_def_readable+0x1cb/0x580 net/core/sock.c:3610
Read of size 8 at addr ffff888076608c00 by task kworker/0:2/803

CPU: 0 UID: 0 PID: 803 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: mld mld_ifc_work
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xba/0x230 mm/kasan/report.c:482
 kasan_report+0x117/0x150 mm/kasan/report.c:595
 list_empty include/linux/list.h:381 [inline]
 waitqueue_active include/linux/wait.h:127 [inline]
 wq_has_sleeper include/linux/wait.h:161 [inline]
 skwq_has_sleeper include/net/sock.h:2404 [inline]
 sock_def_readable+0x1cb/0x580 net/core/sock.c:3610
 send_to_lecd+0x322/0x600 net/atm/lec.c:538
 lec_arp_resolve net/atm/lec.c:1787 [inline]
 lec_start_xmit+0xec0/0x2660 net/atm/lec.c:285
 __netdev_start_xmit include/linux/netdevice.h:5290 [inline]
 netdev_start_xmit include/linux/netdevice.h:5299 [inline]
 xmit_one net/core/dev.c:3872 [inline]
 dev_hard_start_xmit+0x2d8/0x870 net/core/dev.c:3888
 sch_direct_xmit+0x251/0x4c0 net/sched/sch_generic.c:347
 __dev_xmit_skb net/core/dev.c:4187 [inline]
 __dev_queue_xmit+0x1538/0x38a0 net/core/dev.c:4803
 NF_HOOK_COND include/linux/netfilter.h:307 [inline]
 ip6_output+0x340/0x550 net/ipv6/ip6_output.c:246
 NF_HOOK+0xa2/0x3a0 include/linux/netfilter.h:318
 mld_sendpack+0x8b4/0xe40 net/ipv6/mcast.c:1855
 mld_send_cr net/ipv6/mcast.c:2154 [inline]
 mld_ifc_work+0x835/0xe70 net/ipv6/mcast.c:2693
 process_one_work+0x949/0x1650 kernel/workqueue.c:3279
 process_scheduled_works kernel/workqueue.c:3362 [inline]
 worker_thread+0xb46/0x1140 kernel/workqueue.c:3443
 kthread+0x388/0x470 kernel/kthread.c:467
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 14270:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 unpoison_slab_object mm/kasan/common.c:340 [inline]
 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4501 [inline]
 slab_alloc_node mm/slub.c:4830 [inline]
 kmem_cache_alloc_lru_noprof+0x2b8/0x640 mm/slub.c:4849
 sock_alloc_inode+0x28/0xc0 net/socket.c:322
 alloc_inode+0x6a/0x1b0 fs/inode.c:347
 new_inode_pseudo include/linux/fs.h:3003 [inline]
 sock_alloc net/socket.c:637 [inline]
 __sock_create+0x11e/0x960 net/socket.c:1584
 sock_create net/socket.c:1678 [inline]
 __sys_socket_create net/socket.c:1715 [inline]
 __sys_socket+0xd9/0x310 net/socket.c:1762
 __do_sys_socket net/socket.c:1776 [inline]
 __se_sys_socket net/socket.c:1774 [inline]
 __x64_sys_socket+0x7a/0x90 net/socket.c:1774
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 14292:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2687 [inline]
 slab_free mm/slub.c:6124 [inline]
 kmem_cache_free+0x187/0x630 mm/slub.c:6254
 rcu_do_batch kernel/rcu/tree.c:2617 [inline]
 rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869
 handle_softirqs+0x22a/0x870 kernel/softirq.c:626
 __do_softirq kernel/softirq.c:660 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:727
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:743
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697

Last potentially related work creation:
 kasan_save_stack+0x3e/0x60 mm/kasan/common.c:57
 kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:556
 __call_rcu_common kernel/rcu/tree.c:3131 [inline]
 call_rcu+0xee/0x890 kernel/rcu/tree.c:3251
 destroy_inode fs/inode.c:402 [inline]
 evict+0x95b/0xb10 fs/inode.c:870
 __dentry_kill+0x1a2/0x5e0 fs/dcache.c:670
 finish_dput+0xc9/0x480 fs/dcache.c:879
 __fput+0x691/0xa70 fs/file_table.c:477
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:67 [inline]
 exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888076608b80
 which belongs to the cache sock_inode_cache of size 1344
The buggy address is located 128 bytes inside of
 freed 1344-byte region [ffff888076608b80, ffff8880766090c0)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76608
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff88807660fe81
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88814041bdc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000800160016 00000000f5000000 ffff88807660fe81
head: 00fff00000000040 ffff88814041bdc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000800160016 00000000f5000000 ffff88807660fe81
head: 00fff00000000003 ffffea0001d98201 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0xd20d0(__GFP_RECLAIMABLE|__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5906, tgid 5906 (syz-executor), ts 78814028329, free_ts 21291610180
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x231/0x280 mm/page_alloc.c:1889
 prep_new_page mm/page_alloc.c:1897 [inline]
 get_page_from_freelist+0x24dc/0x2580 mm/page_alloc.c:3962
 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5250
 alloc_slab_page mm/slub.c:3255 [inline]
 allocate_slab+0x77/0x660 mm/slub.c:3444
 new_slab mm/slub.c:3502 [inline]
 refill_objects+0x331/0x3c0 mm/slub.c:7134
 refill_sheaf mm/slub.c:2804 [inline]
 __pcs_replace_empty_main+0x2b9/0x620 mm/slub.c:4578
 alloc_from_pcs mm/slub.c:4681 [inline]
 slab_alloc_node mm/slub.c:4815 [inline]
 kmem_cache_alloc_lru_noprof+0x37c/0x640 mm/slub.c:4849
 sock_alloc_inode+0x28/0xc0 net/socket.c:322
 alloc_inode+0x6a/0x1b0 fs/inode.c:347
 new_inode_pseudo include/linux/fs.h:3003 [inline]
 sock_alloc net/socket.c:637 [inline]
 sock_create_lite+0x83/0x350 net/socket.c:1418
 __netlink_kernel_create+0xc8/0x720 net/netlink/af_netlink.c:2015
 netlink_kernel_create include/linux/netlink.h:62 [inline]
 nl_fib_lookup_init net/ipv4/fib_frontend.c:1439 [inline]
 fib_net_init+0x208/0x3b0 net/ipv4/fib_frontend.c:1645
 ops_init+0x35c/0x5c0 net/core/net_namespace.c:137
 setup_net+0x118/0x340 net/core/net_namespace.c:446
 copy_net_ns+0x50e/0x730 net/core/net_namespace.c:581
 create_new_namespaces+0x3e7/0x6a0 kernel/nsproxy.c:130
page last free pid 1 tgid 1 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1433 [inline]
 __free_frozen_pages+0xc2b/0xdb0 mm/page_alloc.c:2978
 __free_pages mm/page_alloc.c:5369 [inline]
 free_contig_range+0xbb/0x170 mm/page_alloc.c:7373
 destroy_args+0x4e5/0x570 mm/debug_vm_pgtable.c:993
 debug_vm_pgtable+0x3f8/0x410 mm/debug_vm_pgtable.c:1368
 do_one_initcall+0x250/0x8d0 init/main.c:1382
 do_initcall_level+0x104/0x190 init/main.c:1444
 do_initcalls+0x59/0xa0 init/main.c:1460
 kernel_init_freeable+0x2a6/0x3e0 init/main.c:1692
 kernel_init+0x1d/0x1d0 init/main.c:1582
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Memory state around the buggy address:
 ffff888076608b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888076608b80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888076608c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff888076608c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888076608d00: 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 list_empty include/linux/list.h:381 [inline]
BUG: KASAN: slab-use-after-free in waitqueue_active include/linux/wait.h:127 [inline]
BUG: KASAN: slab-use-after-free in wq_has_sleeper include/linux/wait.h:161 [inline]
BUG: KASAN: slab-use-after-free in skwq_has_sleeper include/net/sock.h:2404 [inline]
BUG: KASAN: slab-use-after-free in sock_def_readable+0x1cb/0x580 net/core/sock.c:3610
Read of size 8 at addr ffff888076608c00 by task kworker/0:2/803

CPU: 0 UID: 0 PID: 803 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: mld mld_ifc_work
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xba/0x230 mm/kasan/report.c:482
 kasan_report+0x117/0x150 mm/kasan/report.c:595
 list_empty include/linux/list.h:381 [inline]
 waitqueue_active include/linux/wait.h:127 [inline]
 wq_has_sleeper include/linux/wait.h:161 [inline]
 skwq_has_sleeper include/net/sock.h:2404 [inline]
 sock_def_readable+0x1cb/0x580 net/core/sock.c:3610
 send_to_lecd+0x322/0x600 net/atm/lec.c:538
 lec_arp_resolve net/atm/lec.c:1787 [inline]
 lec_start_xmit+0xec0/0x2660 net/atm/lec.c:285
 __netdev_start_xmit include/linux/netdevice.h:5290 [inline]
 netdev_start_xmit include/linux/netdevice.h:5299 [inline]
 xmit_one net/core/dev.c:3872 [inline]
 dev_hard_start_xmit+0x2d8/0x870 net/core/dev.c:3888
 sch_direct_xmit+0x251/0x4c0 net/sched/sch_generic.c:347
 __dev_xmit_skb net/core/dev.c:4187 [inline]
 __dev_queue_xmit+0x1538/0x38a0 net/core/dev.c:4803
 NF_HOOK_COND include/linux/netfilter.h:307 [inline]
 ip6_output+0x340/0x550 net/ipv6/ip6_output.c:246
 NF_HOOK+0xa2/0x3a0 include/linux/netfilter.h:318
 mld_sendpack+0x8b4/0xe40 net/ipv6/mcast.c:1855
 mld_send_cr net/ipv6/mcast.c:2154 [inline]
 mld_ifc_work+0x835/0xe70 net/ipv6/mcast.c:2693
 process_one_work+0x949/0x1650 kernel/workqueue.c:3279
 process_scheduled_works kernel/workqueue.c:3362 [inline]
 worker_thread+0xb46/0x1140 kernel/workqueue.c:3443
 kthread+0x388/0x470 kernel/kthread.c:467
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 14270:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 unpoison_slab_object mm/kasan/common.c:340 [inline]
 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4501 [inline]
 slab_alloc_node mm/slub.c:4830 [inline]
 kmem_cache_alloc_lru_noprof+0x2b8/0x640 mm/slub.c:4849
 sock_alloc_inode+0x28/0xc0 net/socket.c:322
 alloc_inode+0x6a/0x1b0 fs/inode.c:347
 new_inode_pseudo include/linux/fs.h:3003 [inline]
 sock_alloc net/socket.c:637 [inline]
 __sock_create+0x11e/0x960 net/socket.c:1584
 sock_create net/socket.c:1678 [inline]
 __sys_socket_create net/socket.c:1715 [inline]
 __sys_socket+0xd9/0x310 net/socket.c:1762
 __do_sys_socket net/socket.c:1776 [inline]
 __se_sys_socket net/socket.c:1774 [inline]
 __x64_sys_socket+0x7a/0x90 net/socket.c:1774
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 14292:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2687 [inline]
 slab_free mm/slub.c:6124 [inline]
 kmem_cache_free+0x187/0x630 mm/slub.c:6254
 rcu_do_batch kernel/rcu/tree.c:2617 [inline]
 rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869
 handle_softirqs+0x22a/0x870 kernel/softirq.c:626
 __do_softirq kernel/softirq.c:660 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:727
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:743
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697

Last potentially related work creation:
 kasan_save_stack+0x3e/0x60 mm/kasan/common.c:57
 kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:556
 __call_rcu_common kernel/rcu/tree.c:3131 [inline]
 call_rcu+0xee/0x890 kernel/rcu/tree.c:3251
 destroy_inode fs/inode.c:402 [inline]
 evict+0x95b/0xb10 fs/inode.c:870
 __dentry_kill+0x1a2/0x5e0 fs/dcache.c:670
 finish_dput+0xc9/0x480 fs/dcache.c:879
 __fput+0x691/0xa70 fs/file_table.c:477
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:67 [inline]
 exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888076608b80
 which belongs to the cache sock_inode_cache of size 1344
The buggy address is located 128 bytes inside of
 freed 1344-byte region [ffff888076608b80, ffff8880766090c0)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76608
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff88807660fe81
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88814041bdc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000800160016 00000000f5000000 ffff88807660fe81
head: 00fff00000000040 ffff88814041bdc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000800160016 00000000f5000000 ffff88807660fe81
head: 00fff00000000003 ffffea0001d98201 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0xd20d0(__GFP_RECLAIMABLE|__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5906, tgid 5906 (syz-executor), ts 78814028329, free_ts 21291610180
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x231/0x280 mm/page_alloc.c:1889
 prep_new_page mm/page_alloc.c:1897 [inline]
 get_page_from_freelist+0x24dc/0x2580 mm/page_alloc.c:3962
 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5250
 alloc_slab_page mm/slub.c:3255 [inline]
 allocate_slab+0x77/0x660 mm/slub.c:3444
 new_slab mm/slub.c:3502 [inline]
 refill_objects+0x331/0x3c0 mm/slub.c:7134
 refill_sheaf mm/slub.c:2804 [inline]
 __pcs_replace_empty_main+0x2b9/0x620 mm/slub.c:4578
 alloc_from_pcs mm/slub.c:4681 [inline]
 slab_alloc_node mm/slub.c:4815 [inline]
 kmem_cache_alloc_lru_noprof+0x37c/0x640 mm/slub.c:4849
 sock_alloc_inode+0x28/0xc0 net/socket.c:322
 alloc_inode+0x6a/0x1b0 fs/inode.c:347
 new_inode_pseudo include/linux/fs.h:3003 [inline]
 sock_alloc net/socket.c:637 [inline]
 sock_create_lite+0x83/0x350 net/socket.c:1418
 __netlink_kernel_create+0xc8/0x720 net/netlink/af_netlink.c:2015
 netlink_kernel_create include/linux/netlink.h:62 [inline]
 nl_fib_lookup_init net/ipv4/fib_frontend.c:1439 [inline]
 fib_net_init+0x208/0x3b0 net/ipv4/fib_frontend.c:1645
 ops_init+0x35c/0x5c0 net/core/net_namespace.c:137
 setup_net+0x118/0x340 net/core/net_namespace.c:446
 copy_net_ns+0x50e/0x730 net/core/net_namespace.c:581
 create_new_namespaces+0x3e7/0x6a0 kernel/nsproxy.c:130
page last free pid 1 tgid 1 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1433 [inline]
 __free_frozen_pages+0xc2b/0xdb0 mm/page_alloc.c:2978
 __free_pages mm/page_alloc.c:5369 [inline]
 free_contig_range+0xbb/0x170 mm/page_alloc.c:7373
 destroy_args+0x4e5/0x570 mm/debug_vm_pgtable.c:993
 debug_vm_pgtable+0x3f8/0x410 mm/debug_vm_pgtable.c:1368
 do_one_initcall+0x250/0x8d0 init/main.c:1382
 do_initcall_level+0x104/0x190 init/main.c:1444
 do_initcalls+0x59/0xa0 init/main.c:1460
 kernel_init_freeable+0x2a6/0x3e0 init/main.c:1692
 kernel_init+0x1d/0x1d0 init/main.c:1582
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Memory state around the buggy address:
 ffff888076608b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888076608b80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888076608c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff888076608c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888076608d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================