Extracting prog: 3m21.697675689s
Minimizing prog: 7m19.317916169s
Simplifying prog options: 0s
Extracting C: 22.337230366s
Simplifying C: 4m30.549353007s


24 programs, timeouts [30s 1m40s 6m0s]
extracting reproducer from 24 programs
testing a last program of every proc
single: executing 4 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$I2C-sendmsg$IPSET_CMD_CREATE-openat$cgroup_ro-write$UHID_CREATE2-mmap-ioctl$I2C_SMBUS
detailed listing:
executing program 0:
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x0, 0x0)
sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="540000000206"], 0x54}}, 0x0)
r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='cpu.stat\x00', 0x275a, 0x0)
write$UHID_CREATE2(r1, &(0x7f00000001c0)=ANY=[], 0x118)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x5, 0x12, r1, 0x0)
ioctl$I2C_SMBUS(r0, 0x720, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0})

program did not crash
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-ioctl$EVIOCSCLOCKID-syz_usb_ep_write$ath9k_ep2-syz_open_dev$evdev-syz_usb_ep_write$ath9k_ep2-write$char_usb
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x36, &(0x7f00000002c0)=ANY=[@ANYBLOB="1201000014da2108ab12a390eb1e000000010902240001b30000040904410017ff5d810009050f1f01040000000905830300b3"], 0x0)
ioctl$EVIOCSCLOCKID(0xffffffffffffffff, 0x400445a0, &(0x7f0000000080)=0xb309)
syz_usb_ep_write$ath9k_ep2(r0, 0x83, 0x8, &(0x7f0000000080)=ANY=[])
r1 = syz_open_dev$evdev(&(0x7f0000000880), 0x200000000000002, 0x862b01)
syz_usb_ep_write$ath9k_ep2(r0, 0x83, 0x8, &(0x7f0000000000)=@generic={0x8, 0x0, 0x0, "7630b361"})
write$char_usb(r1, &(0x7f0000000040), 0x0)

program did not crash
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$sndctrl-ioctl$SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS-readv-ioctl$SNDRV_CTL_IOCTL_ELEM_ADD-syz_open_dev$swradio-ioctl$VIDIOC_ENUM_FREQ_BANDS
detailed listing:
executing program 0:
r0 = syz_open_dev$sndctrl(&(0x7f0000000080), 0x0, 0x0)
ioctl$SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS(r0, 0xc0045516, &(0x7f0000000000)=0x639)
readv(r0, &(0x7f00000002c0)=[{&(0x7f0000000200)=""/147, 0x93}, {&(0x7f0000000100)=""/237, 0xed}], 0x2)
ioctl$SNDRV_CTL_IOCTL_ELEM_ADD(r0, 0xc1105517, &(0x7f0000001980)={{0x0, 0x0, 0x0, 0x0, 'syz0\x00', 0xfe}, 0x5, 0x0, 0x1, 0x0, 0x0, 0x0, 'syz0\x00', 0x0})
r1 = syz_open_dev$swradio(&(0x7f0000000000), 0x1, 0x2)
ioctl$VIDIOC_ENUM_FREQ_BANDS(r1, 0xc0405665, &(0x7f0000000080)={0x1, 0x4})

program did not crash
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio-chdir-openat-io_setup-io_submit
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mount$9p_virtio(&(0x7f00000001c0), &(0x7f0000000480)='./file0\x00', &(0x7f00000004c0), 0x0, &(0x7f0000000840)=ANY=[@ANYBLOB="78226e6f65786163638173733d616e792c63616368653d66736361636865"])
chdir(&(0x7f0000000280)='./file0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x20c01, 0x0)
io_setup(0x1fe, &(0x7f0000000200)=<r1=>0x0)
io_submit(r1, 0x1, &(0x7f0000000040)=[&(0x7f0000000440)={0x18, 0x7000000, 0x4, 0x1, 0x0, r0, &(0x7f0000000180)='\x00', 0x1, 0x2}])

program crashed: WARNING in p9_client_create
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio-chdir-openat-io_setup
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mount$9p_virtio(&(0x7f00000001c0), &(0x7f0000000480)='./file0\x00', &(0x7f00000004c0), 0x0, &(0x7f0000000840)=ANY=[@ANYBLOB="78226e6f65786163638173733d616e792c63616368653d66736361636865"])
chdir(&(0x7f0000000280)='./file0\x00')
openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x20c01, 0x0)
io_setup(0x1fe, &(0x7f0000000200))

program crashed: WARNING in p9_client_create
testing program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio-chdir-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mount$9p_virtio(&(0x7f00000001c0), &(0x7f0000000480)='./file0\x00', &(0x7f00000004c0), 0x0, &(0x7f0000000840)=ANY=[@ANYBLOB="78226e6f65786163638173733d616e792c63616368653d66736361636865"])
chdir(&(0x7f0000000280)='./file0\x00')
openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x20c01, 0x0)

program crashed: WARNING in p9_client_create
testing program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio-chdir
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mount$9p_virtio(&(0x7f00000001c0), &(0x7f0000000480)='./file0\x00', &(0x7f00000004c0), 0x0, &(0x7f0000000840)=ANY=[@ANYBLOB="78226e6f65786163638173733d616e792c63616368653d66736361636865"])
chdir(&(0x7f0000000280)='./file0\x00')

program crashed: WARNING in p9_client_create
testing program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mount$9p_virtio(&(0x7f00000001c0), &(0x7f0000000480)='./file0\x00', &(0x7f00000004c0), 0x0, &(0x7f0000000840)=ANY=[@ANYBLOB="78226e6f65786163638173733d616e792c63616368653d66736361636865"])

program crashed: WARNING in p9_client_create
testing program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)

program did not crash
testing program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$9p_virtio
detailed listing:
executing program 0:
mount$9p_virtio(&(0x7f00000001c0), &(0x7f0000000480)='./file0\x00', &(0x7f00000004c0), 0x0, &(0x7f0000000840)=ANY=[@ANYBLOB="78226e6f65786163638173733d616e792c63616368653d66736361636865"])

program did not crash
testing program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x0)
mount$9p_virtio(&(0x7f00000001c0), &(0x7f0000000480)='./file0\x00', &(0x7f00000004c0), 0x0, &(0x7f0000000840)=ANY=[@ANYBLOB="78226e6f65786163638173733d616e792c63616368653d66736361636865"])

program did not crash
testing program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mount$9p_virtio(0x0, &(0x7f0000000480)='./file0\x00', &(0x7f00000004c0), 0x0, &(0x7f0000000840)=ANY=[@ANYBLOB="78226e6f65786163638173733d616e792c63616368653d66736361636865"])

program did not crash
testing program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mount$9p_virtio(&(0x7f00000001c0), 0x0, &(0x7f00000004c0), 0x0, &(0x7f0000000840)=ANY=[@ANYBLOB="78226e6f65786163638173733d616e792c63616368653d66736361636865"])

program did not crash
testing program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mount$9p_virtio(&(0x7f00000001c0), &(0x7f0000000480)='./file0\x00', 0x0, 0x0, &(0x7f0000000840)=ANY=[@ANYBLOB="78226e6f65786163638173733d616e792c63616368653d66736361636865"])

program did not crash
testing program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mount$9p_virtio(&(0x7f00000001c0), &(0x7f0000000480)='./file0\x00', &(0x7f00000004c0), 0x0, 0x0)

program crashed: WARNING in p9_client_create
extracting C reproducer
testing compiled C program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
program crashed: WARNING in p9_client_create
simplifying C reproducer
testing compiled C program (duration=36.31456855s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
program crashed: WARNING in p9_client_create
testing compiled C program (duration=36.31456855s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
program did not crash
testing compiled C program (duration=36.31456855s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
program did not crash
testing compiled C program (duration=36.31456855s, {Threaded:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
program crashed: WARNING in p9_client_create
testing compiled C program (duration=36.31456855s, {Threaded:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
program crashed: WARNING in p9_client_create
testing compiled C program (duration=36.31456855s, {Threaded:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
program did not crash
testing compiled C program (duration=36.31456855s, {Threaded:false 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:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
program crashed: WARNING in p9_client_create
testing compiled C program (duration=36.31456855s, {Threaded:false 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:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$9p_virtio
program crashed: WARNING in p9_client_create
reproducing took 15m33.902195713s
repro crashed as (corrupted=false):
------------[ cut here ]------------
kmem_cache of name '9p-fcall-cache' already exists
WARNING: CPU: 3 PID: 5339 at mm/slab_common.c:107 kmem_cache_sanity_check mm/slab_common.c:107 [inline]
WARNING: CPU: 3 PID: 5339 at mm/slab_common.c:107 __kmem_cache_create_args+0xb0/0x3c0 mm/slab_common.c:294
Modules linked in:
CPU: 3 UID: 0 PID: 5339 Comm: syz-executor242 Not tainted 6.12.0-rc1-syzkaller-00046-g7ec462100ef9 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:kmem_cache_sanity_check mm/slab_common.c:107 [inline]
RIP: 0010:__kmem_cache_create_args+0xb0/0x3c0 mm/slab_common.c:294
Code: 98 48 3d f0 d6 31 8e 74 25 48 8b 7b 60 48 89 ee e8 15 45 42 09 85 c0 75 e0 90 48 c7 c7 b0 07 7b 8d 48 89 ee e8 21 12 7e ff 90 <0f> 0b 90 90 be 20 00 00 00 48 89 ef e8 9f 46 42 09 48 85 c0 0f 85
RSP: 0018:ffffc900044e7900 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88810ad4e280 RCX: ffffffff814e7329
RDX: ffff8880272a8000 RSI: ffffffff814e7336 RDI: 0000000000000001
RBP: ffffffff8cc38ae0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000020018 R14: ffffc900044e79f0 R15: 0000000000020018
FS:  000055558900d380(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 0000000033dc8000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kmem_cache_create_usercopy include/linux/slab.h:361 [inline]
 p9_client_create+0xebd/0x11b0 net/9p/client.c:1042
 v9fs_session_init+0x1f8/0x1a80 fs/9p/v9fs.c:410
 v9fs_mount+0xc6/0xa50 fs/9p/vfs_super.c:122
 legacy_get_tree+0x109/0x220 fs/fs_context.c:662
 vfs_get_tree+0x8f/0x380 fs/super.c:1800
 do_new_mount fs/namespace.c:3507 [inline]
 path_mount+0x14e6/0x1f20 fs/namespace.c:3834
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4055 [inline]
 __se_sys_mount fs/namespace.c:4032 [inline]
 __x64_sys_mount+0x294/0x320 fs/namespace.c:4032
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbc67ee0299
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffff4c0e6b8 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fbc67ee0299
RDX: 00000000200004c0 RSI: 0000000020000480 RDI: 00000000200001c0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffff4c0e6dc
R13: 00007ffff4c0ea58 R14: 00007ffff4c0e6f0 R15: 0000000000000003
 </TASK>

final repro crashed as (corrupted=false):
------------[ cut here ]------------
kmem_cache of name '9p-fcall-cache' already exists
WARNING: CPU: 3 PID: 5339 at mm/slab_common.c:107 kmem_cache_sanity_check mm/slab_common.c:107 [inline]
WARNING: CPU: 3 PID: 5339 at mm/slab_common.c:107 __kmem_cache_create_args+0xb0/0x3c0 mm/slab_common.c:294
Modules linked in:
CPU: 3 UID: 0 PID: 5339 Comm: syz-executor242 Not tainted 6.12.0-rc1-syzkaller-00046-g7ec462100ef9 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:kmem_cache_sanity_check mm/slab_common.c:107 [inline]
RIP: 0010:__kmem_cache_create_args+0xb0/0x3c0 mm/slab_common.c:294
Code: 98 48 3d f0 d6 31 8e 74 25 48 8b 7b 60 48 89 ee e8 15 45 42 09 85 c0 75 e0 90 48 c7 c7 b0 07 7b 8d 48 89 ee e8 21 12 7e ff 90 <0f> 0b 90 90 be 20 00 00 00 48 89 ef e8 9f 46 42 09 48 85 c0 0f 85
RSP: 0018:ffffc900044e7900 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88810ad4e280 RCX: ffffffff814e7329
RDX: ffff8880272a8000 RSI: ffffffff814e7336 RDI: 0000000000000001
RBP: ffffffff8cc38ae0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000020018 R14: ffffc900044e79f0 R15: 0000000000020018
FS:  000055558900d380(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 0000000033dc8000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kmem_cache_create_usercopy include/linux/slab.h:361 [inline]
 p9_client_create+0xebd/0x11b0 net/9p/client.c:1042
 v9fs_session_init+0x1f8/0x1a80 fs/9p/v9fs.c:410
 v9fs_mount+0xc6/0xa50 fs/9p/vfs_super.c:122
 legacy_get_tree+0x109/0x220 fs/fs_context.c:662
 vfs_get_tree+0x8f/0x380 fs/super.c:1800
 do_new_mount fs/namespace.c:3507 [inline]
 path_mount+0x14e6/0x1f20 fs/namespace.c:3834
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4055 [inline]
 __se_sys_mount fs/namespace.c:4032 [inline]
 __x64_sys_mount+0x294/0x320 fs/namespace.c:4032
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbc67ee0299
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffff4c0e6b8 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fbc67ee0299
RDX: 00000000200004c0 RSI: 0000000020000480 RDI: 00000000200001c0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffff4c0e6dc
R13: 00007ffff4c0ea58 R14: 00007ffff4c0e6f0 R15: 0000000000000003
 </TASK>