Extracting prog: 2m11.780277145s
Minimizing prog: 11m49.547968626s
Simplifying prog options: 0s
Extracting C: 1m39.891993542s
Simplifying C: 9m57.188825924s


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-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
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=47.526832836s, {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
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)

program did not crash
testing program (duration=47.526832836s, {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=47.526832836s, {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=47.526832836s, {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 did not crash
testing program (duration=47.526832836s, {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-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)
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 did not crash
testing program (duration=47.526832836s, {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$namespace-mmap-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
detailed listing:
executing program 0:
socket$nl_generic(0x10, 0x3, 0x10)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
syz_open_procfs$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 did not crash
testing program (duration=47.526832836s, {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-mmap-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')
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 did not crash
testing program (duration=47.526832836s, {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-mmap-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')
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 did not crash
testing program (duration=47.526832836s, {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, 0x0)
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 did not crash
extracting C reproducer
testing compiled C program (duration=47.526832836s, {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$sock_inet6_tcp_SIOCINQ
program crashed: KASAN: slab-use-after-free Read in sock_def_readable
simplifying C reproducer
testing compiled C program (duration=47.526832836s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-mmap-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program did not crash
testing compiled C program (duration=47.526832836s, {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 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$sock_inet6_tcp_SIOCINQ
program did not crash
testing compiled C program (duration=47.526832836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-mmap-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program did not crash
testing compiled C program (duration=47.526832836s, {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$namespace-mmap-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program crashed: KASAN: slab-use-after-free Read in sock_def_readable
testing compiled C program (duration=47.526832836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-mmap-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=47.526832836s, {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$namespace-mmap-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program crashed: KASAN: slab-use-after-free Read in sock_def_readable
testing compiled C program (duration=47.526832836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-mmap-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=47.526832836s, {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$namespace-mmap-socket-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_tcp_SIOCINQ
program crashed: KASAN: slab-use-after-free Read in sock_def_readable
testing program (duration=47.526832836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-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
validation run: crashed=true
testing program (duration=47.526832836s, {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$namespace-mmap-socket-ioctl$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
validation run: crashed=true
testing program (duration=47.526832836s, {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$namespace-mmap-socket-ioctl$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
validation run: crashed=true
reproducing took 30m12.470643901s
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 ffff888056463fc0 by task kworker/0:5/6058

CPU: 0 UID: 0 PID: 6058 Comm: kworker/0:5 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 6086:
 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 15:
 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
 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1067
 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160
 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

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 ffff888056463f40
 which belongs to the cache sock_inode_cache of size 1344
The buggy address is located 128 bytes inside of
 freed 1344-byte region [ffff888056463f40, ffff888056464480)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x56460
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff888056467e81
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801f2b8dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000800160016 00000000f5000000 ffff888056467e81
head: 00fff00000000040 ffff88801f2b8dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000800160016 00000000f5000000 ffff888056467e81
head: 00fff00000000003 ffffea0001591801 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 5951, tgid 5951 (syz-executor), ts 108007423383, free_ts 99299005597
 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+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
page last free pid 5908 tgid 5908 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
 vfree+0x25a/0x400 mm/vmalloc.c:3479
 kcov_put kernel/kcov.c:442 [inline]
 kcov_close+0x28/0x50 kernel/kcov.c:543
 __fput+0x44f/0xa70 fs/file_table.c:469
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x69b/0x2320 kernel/exit.c:971
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1112
 get_signal+0x1284/0x1330 kernel/signal.c:3034
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 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

Memory state around the buggy address:
 ffff888056463e80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff888056463f00: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
>ffff888056463f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff888056464000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888056464080: 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 ffff888056463fc0 by task kworker/0:5/6058

CPU: 0 UID: 0 PID: 6058 Comm: kworker/0:5 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 6086:
 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 15:
 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
 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1067
 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160
 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

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 ffff888056463f40
 which belongs to the cache sock_inode_cache of size 1344
The buggy address is located 128 bytes inside of
 freed 1344-byte region [ffff888056463f40, ffff888056464480)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x56460
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff888056467e81
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801f2b8dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000800160016 00000000f5000000 ffff888056467e81
head: 00fff00000000040 ffff88801f2b8dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000800160016 00000000f5000000 ffff888056467e81
head: 00fff00000000003 ffffea0001591801 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 5951, tgid 5951 (syz-executor), ts 108007423383, free_ts 99299005597
 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+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
page last free pid 5908 tgid 5908 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
 vfree+0x25a/0x400 mm/vmalloc.c:3479
 kcov_put kernel/kcov.c:442 [inline]
 kcov_close+0x28/0x50 kernel/kcov.c:543
 __fput+0x44f/0xa70 fs/file_table.c:469
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x69b/0x2320 kernel/exit.c:971
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1112
 get_signal+0x1284/0x1330 kernel/signal.c:3034
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 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

Memory state around the buggy address:
 ffff888056463e80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff888056463f00: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
>ffff888056463f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff888056464000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888056464080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================