Extracting prog: 2m39.970057459s
Minimizing prog: 26m40.467889934s
Simplifying prog options: 0s
Extracting C: 56.310513209s
Simplifying C: 11m52.081932376s


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}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-syz_usb_control_io$cdc_ecm-getsockopt$llc_int-openat$sndtimer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f0000000500)={0x1c, 0x0, 0x0, 0x0})
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)
openat$sndtimer(0xffffffffffffff9c, 0x0, 0x349000)

program crashed: KASAN: slab-use-after-free Read in v4l2_open
single: successfully extracted reproducer
found reproducer with 11 syscalls
minimizing guilty program
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-syz_usb_control_io$cdc_ecm-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f0000000500)={0x1c, 0x0, 0x0, 0x0})
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program crashed: KASAN: slab-use-after-free Read in v4l2_open
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-syz_usb_control_io$cdc_ecm
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f0000000500)={0x1c, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program crashed: KASAN: slab-use-after-free Read in v4l2_open
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program did not crash
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(0xffffffffffffffff, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program did not crash
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program did not crash
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program did not crash
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program did not crash
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program did not crash
testing program (duration=49.610205823s, {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_usb_connect-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r0, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program did not crash
testing program (duration=49.610205823s, {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_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
syz_usb_control_io(0xffffffffffffffff, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r0, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program did not crash
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program did not crash
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000002c0)='./cgroup.net/devices.allow\x00', 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program did not crash
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program crashed: KASAN: slab-use-after-free Read in v4l2_open
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, 0x0, 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program did not crash
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, 0x0, 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, &(0x7f00000000c0), &(0x7f0000000140)=0x4)

program did not crash
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, 0x0, &(0x7f0000000140))

program crashed: KASAN: slab-use-after-free Read in v4l2_open
testing program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in v4l2_open
extracting C reproducer
testing compiled C program (duration=49.610205823s, {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_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
program crashed: KASAN: slab-use-after-free Read in v4l2_open
simplifying C reproducer
testing compiled C program (duration=49.610205823s, {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}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
program crashed: KASAN: slab-use-after-free Read in v4l2_open
testing compiled C program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
program did not crash
testing compiled C program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
program did not crash
testing compiled C program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
program crashed: KASAN: slab-use-after-free Read in v4l2_open
testing compiled C program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
program crashed: KASAN: slab-use-after-free Read in v4l2_open
testing compiled C program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
program did not crash
testing compiled C program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
program crashed: KASAN: slab-use-after-free Read in v4l2_open
testing compiled C program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
program crashed: KASAN: slab-use-after-free Read in v4l2_open
testing program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, 0x0, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, 0x0, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in em28xx_release_resources
validation run: crashed=true
testing program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in v4l2_open
validation run: crashed=true
testing program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, 0x0, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=49.610205823s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syslog-openat$dir-fanotify_init-openat-openat$comedi-getsockopt$llc_int
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x1, 0x401, 0x0)
syslog(0x0, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x80000, 0x0)
fanotify_init(0xf00, 0x1000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup.net/devices.allow\x00', 0x189002, 0x40)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi1\x00', 0xe2680, 0x0)
getsockopt$llc_int(r1, 0x10c, 0x3, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in v4l2_open
validation run: crashed=true
reproducing took 51m25.06892884s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in v4l2_open+0x395/0x3a0 drivers/media/v4l2-core/v4l2-dev.c:444
Read of size 4 at addr ffff888079bf4858 by task v4l_id/6137

CPU: 1 UID: 0 PID: 6137 Comm: v4l_id Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_address_description+0x55/0x1e0 mm/kasan/report.c:378
 print_report+0x58/0x70 mm/kasan/report.c:482
 kasan_report+0x117/0x150 mm/kasan/report.c:595
 v4l2_open+0x395/0x3a0 drivers/media/v4l2-core/v4l2-dev.c:444
 chrdev_open+0x4cd/0x5e0 fs/char_dev.c:411
 do_dentry_open+0x785/0x14e0 fs/open.c:947
 vfs_open+0x3b/0x340 fs/open.c:1079
 do_open fs/namei.c:4699 [inline]
 path_openat+0x2e08/0x3860 fs/namei.c:4858
 do_file_open+0x23e/0x4a0 fs/namei.c:4887
 do_sys_openat2+0x113/0x200 fs/open.c:1364
 do_sys_open fs/open.c:1370 [inline]
 __do_sys_openat fs/open.c:1386 [inline]
 __se_sys_openat fs/open.c:1381 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1381
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe2830a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffc048afa70 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe2837b9880 RCX: 00007fe2830a7407
RDX: 0000000000000000 RSI: 00007ffc048b0f1c RDI: ffffffffffffff9c
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007ffc048afcc0 R14: 00007fe283920000 R15: 000055f7fb41a4d8
 </TASK>

Allocated by task 10:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x31c/0x660 mm/slub.c:5412
 kmalloc_noprof include/linux/slab.h:950 [inline]
 kzalloc_noprof include/linux/slab.h:1188 [inline]
 em28xx_v4l2_init+0x10b/0x2eb0 drivers/media/usb/em28xx/em28xx-video.c:2707
 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1248
 process_one_work kernel/workqueue.c:3302 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 10:
 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:2689 [inline]
 slab_free mm/slub.c:6242 [inline]
 kfree+0x1c5/0x640 mm/slub.c:6557
 em28xx_free_v4l2 drivers/media/usb/em28xx/em28xx-video.c:2287 [inline]
 kref_put include/linux/kref.h:65 [inline]
 em28xx_v4l2_init+0x1685/0x2eb0 drivers/media/usb/em28xx/em28xx-video.c:3078
 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1248
 process_one_work kernel/workqueue.c:3302 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff888079bf4000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2136 bytes inside of
 freed 8192-byte region [ffff888079bf4000, ffff888079bf6000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888079bf0000 pfn:0x79bf0
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000240(workingset|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000240 ffff88813fe35280 ffffea0000ddbc10 ffffea0001db4c10
raw: ffff888079bf0000 0000000800020001 00000000f5000000 0000000000000000
head: 00fff00000000240 ffff88813fe35280 ffffea0000ddbc10 ffffea0001db4c10
head: ffff888079bf0000 0000000800020001 00000000f5000000 0000000000000000
head: 00fff00000000003 fffffffffffffe01 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 Unmovable, gfp_mask 0xd28c0(GFP_NOWAIT|__GFP_IO|__GFP_FS|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5877, tgid 5877 (syz-executor), ts 94124903141, free_ts 94116696179
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858
 prep_new_page mm/page_alloc.c:1866 [inline]
 get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946
 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226
 alloc_slab_page mm/slub.c:3278 [inline]
 allocate_slab+0x77/0x660 mm/slub.c:3467
 new_slab mm/slub.c:3525 [inline]
 refill_objects+0x339/0x3d0 mm/slub.c:7247
 refill_sheaf mm/slub.c:2816 [inline]
 __pcs_replace_empty_main+0x321/0x720 mm/slub.c:4651
 alloc_from_pcs mm/slub.c:4749 [inline]
 slab_alloc_node mm/slub.c:4883 [inline]
 __do_kmalloc_node mm/slub.c:5291 [inline]
 __kvmalloc_node_noprof+0x657/0x8a0 mm/slub.c:6824
 kvmalloc_array_node_noprof include/linux/slab.h:1216 [inline]
 __ptr_ring_init_queue_alloc_noprof include/linux/ptr_ring.h:481 [inline]
 ptr_ring_init_noprof include/linux/ptr_ring.h:499 [inline]
 skb_array_init_noprof include/linux/skb_array.h:182 [inline]
 pfifo_fast_init+0x372/0x6c0 net/sched/sch_generic.c:895
 qdisc_create_dflt+0x13b/0x4e0 net/sched/sch_generic.c:1038
 attach_one_default_qdisc net/sched/sch_generic.c:1197 [inline]
 netdev_for_each_tx_queue include/linux/netdevice.h:2682 [inline]
 attach_default_qdiscs net/sched/sch_generic.c:1215 [inline]
 dev_activate+0x378/0x1150 net/sched/sch_generic.c:1274
 __dev_open+0x67a/0x830 net/core/dev.c:1709
 __dev_change_flags+0x1f7/0x690 net/core/dev.c:9796
 netif_change_flags+0x88/0x1a0 net/core/dev.c:9859
 do_setlink+0xf82/0x4590 net/core/rtnetlink.c:3180
 rtnl_changelink net/core/rtnetlink.c:3798 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3957 [inline]
 rtnl_newlink+0x15a9/0x1be0 net/core/rtnetlink.c:4094
 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:6980
page last free pid 5213 tgid 5213 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1402 [inline]
 __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943
 __slab_free+0x274/0x2c0 mm/slub.c:5605
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4569 [inline]
 slab_alloc_node mm/slub.c:4898 [inline]
 __do_kmalloc_node mm/slub.c:5291 [inline]
 __kmalloc_noprof+0x316/0x760 mm/slub.c:5304
 kmalloc_noprof include/linux/slab.h:954 [inline]
 tomoyo_realpath_from_path+0xe3/0x5d0 security/tomoyo/realpath.c:251
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0x283/0x560 security/tomoyo/file.c:827
 security_inode_getattr+0x12b/0x310 security/security.c:1870
 vfs_getattr fs/stat.c:259 [inline]
 vfs_fstat fs/stat.c:281 [inline]
 __do_sys_newfstat fs/stat.c:551 [inline]
 __se_sys_newfstat fs/stat.c:546 [inline]
 __x64_sys_newfstat+0x13b/0x270 fs/stat.c:546
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff888079bf4700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888079bf4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888079bf4800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                    ^
 ffff888079bf4880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888079bf4900: 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 v4l2_open+0x395/0x3a0 drivers/media/v4l2-core/v4l2-dev.c:444
Read of size 4 at addr ffff888079bf4858 by task v4l_id/6137

CPU: 1 UID: 0 PID: 6137 Comm: v4l_id Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_address_description+0x55/0x1e0 mm/kasan/report.c:378
 print_report+0x58/0x70 mm/kasan/report.c:482
 kasan_report+0x117/0x150 mm/kasan/report.c:595
 v4l2_open+0x395/0x3a0 drivers/media/v4l2-core/v4l2-dev.c:444
 chrdev_open+0x4cd/0x5e0 fs/char_dev.c:411
 do_dentry_open+0x785/0x14e0 fs/open.c:947
 vfs_open+0x3b/0x340 fs/open.c:1079
 do_open fs/namei.c:4699 [inline]
 path_openat+0x2e08/0x3860 fs/namei.c:4858
 do_file_open+0x23e/0x4a0 fs/namei.c:4887
 do_sys_openat2+0x113/0x200 fs/open.c:1364
 do_sys_open fs/open.c:1370 [inline]
 __do_sys_openat fs/open.c:1386 [inline]
 __se_sys_openat fs/open.c:1381 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1381
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe2830a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffc048afa70 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe2837b9880 RCX: 00007fe2830a7407
RDX: 0000000000000000 RSI: 00007ffc048b0f1c RDI: ffffffffffffff9c
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007ffc048afcc0 R14: 00007fe283920000 R15: 000055f7fb41a4d8
 </TASK>

Allocated by task 10:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x31c/0x660 mm/slub.c:5412
 kmalloc_noprof include/linux/slab.h:950 [inline]
 kzalloc_noprof include/linux/slab.h:1188 [inline]
 em28xx_v4l2_init+0x10b/0x2eb0 drivers/media/usb/em28xx/em28xx-video.c:2707
 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1248
 process_one_work kernel/workqueue.c:3302 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 10:
 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:2689 [inline]
 slab_free mm/slub.c:6242 [inline]
 kfree+0x1c5/0x640 mm/slub.c:6557
 em28xx_free_v4l2 drivers/media/usb/em28xx/em28xx-video.c:2287 [inline]
 kref_put include/linux/kref.h:65 [inline]
 em28xx_v4l2_init+0x1685/0x2eb0 drivers/media/usb/em28xx/em28xx-video.c:3078
 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1248
 process_one_work kernel/workqueue.c:3302 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff888079bf4000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2136 bytes inside of
 freed 8192-byte region [ffff888079bf4000, ffff888079bf6000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888079bf0000 pfn:0x79bf0
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000240(workingset|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000240 ffff88813fe35280 ffffea0000ddbc10 ffffea0001db4c10
raw: ffff888079bf0000 0000000800020001 00000000f5000000 0000000000000000
head: 00fff00000000240 ffff88813fe35280 ffffea0000ddbc10 ffffea0001db4c10
head: ffff888079bf0000 0000000800020001 00000000f5000000 0000000000000000
head: 00fff00000000003 fffffffffffffe01 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 Unmovable, gfp_mask 0xd28c0(GFP_NOWAIT|__GFP_IO|__GFP_FS|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5877, tgid 5877 (syz-executor), ts 94124903141, free_ts 94116696179
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858
 prep_new_page mm/page_alloc.c:1866 [inline]
 get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946
 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226
 alloc_slab_page mm/slub.c:3278 [inline]
 allocate_slab+0x77/0x660 mm/slub.c:3467
 new_slab mm/slub.c:3525 [inline]
 refill_objects+0x339/0x3d0 mm/slub.c:7247
 refill_sheaf mm/slub.c:2816 [inline]
 __pcs_replace_empty_main+0x321/0x720 mm/slub.c:4651
 alloc_from_pcs mm/slub.c:4749 [inline]
 slab_alloc_node mm/slub.c:4883 [inline]
 __do_kmalloc_node mm/slub.c:5291 [inline]
 __kvmalloc_node_noprof+0x657/0x8a0 mm/slub.c:6824
 kvmalloc_array_node_noprof include/linux/slab.h:1216 [inline]
 __ptr_ring_init_queue_alloc_noprof include/linux/ptr_ring.h:481 [inline]
 ptr_ring_init_noprof include/linux/ptr_ring.h:499 [inline]
 skb_array_init_noprof include/linux/skb_array.h:182 [inline]
 pfifo_fast_init+0x372/0x6c0 net/sched/sch_generic.c:895
 qdisc_create_dflt+0x13b/0x4e0 net/sched/sch_generic.c:1038
 attach_one_default_qdisc net/sched/sch_generic.c:1197 [inline]
 netdev_for_each_tx_queue include/linux/netdevice.h:2682 [inline]
 attach_default_qdiscs net/sched/sch_generic.c:1215 [inline]
 dev_activate+0x378/0x1150 net/sched/sch_generic.c:1274
 __dev_open+0x67a/0x830 net/core/dev.c:1709
 __dev_change_flags+0x1f7/0x690 net/core/dev.c:9796
 netif_change_flags+0x88/0x1a0 net/core/dev.c:9859
 do_setlink+0xf82/0x4590 net/core/rtnetlink.c:3180
 rtnl_changelink net/core/rtnetlink.c:3798 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3957 [inline]
 rtnl_newlink+0x15a9/0x1be0 net/core/rtnetlink.c:4094
 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:6980
page last free pid 5213 tgid 5213 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1402 [inline]
 __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943
 __slab_free+0x274/0x2c0 mm/slub.c:5605
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4569 [inline]
 slab_alloc_node mm/slub.c:4898 [inline]
 __do_kmalloc_node mm/slub.c:5291 [inline]
 __kmalloc_noprof+0x316/0x760 mm/slub.c:5304
 kmalloc_noprof include/linux/slab.h:954 [inline]
 tomoyo_realpath_from_path+0xe3/0x5d0 security/tomoyo/realpath.c:251
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0x283/0x560 security/tomoyo/file.c:827
 security_inode_getattr+0x12b/0x310 security/security.c:1870
 vfs_getattr fs/stat.c:259 [inline]
 vfs_fstat fs/stat.c:281 [inline]
 __do_sys_newfstat fs/stat.c:551 [inline]
 __se_sys_newfstat fs/stat.c:546 [inline]
 __x64_sys_newfstat+0x13b/0x270 fs/stat.c:546
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff888079bf4700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888079bf4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888079bf4800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                    ^
 ffff888079bf4880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888079bf4900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================