Extracting prog: 8m34.256945053s
Minimizing prog: 13m38.302450099s
Simplifying prog options: 0s
Extracting C: 1m31.337193679s
Simplifying C: 12m27.371154791s


extracting reproducer from 30 programs
testing a last program of every proc
single: executing 5 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket-socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x60880, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x7101})
r1 = socket(0x400000000010, 0x3, 0x0)
r2 = socket$unix(0x1, 0x1, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000100)={'syzkaller0\x00', <r3=>0x0})
sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000005c0)=@newqdisc={0x38, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r3, {0x0, 0xfff1}, {0xffff, 0xffff}, {0xffe0, 0xf}}, [@qdisc_kind_options=@q_multiq={{0xb}, {0x8, 0x2, {0x1}}}]}, 0x38}}, 0x0)
sendmsg$nl_route_sched(r1, &(0x7f0000000400)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000940)=@delqdisc={0x24, 0x25, 0x1, 0x70bd25, 0x25dfdbfc, {0x0, 0x0, 0x0, r3, {0x0, 0xe}, {0x1, 0xfff1}, {0x0, 0xfff5}}}, 0x24}, 0x1, 0x0, 0x0, 0x20001005}, 0x20040080)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-socket$inet_tcp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-ioctl$sock_SIOCGIFINDEX-bpf$BPF_LINK_CREATE_XDP-syz_emit_ethernet
detailed listing:
executing program 0:
r0 = bpf$PROG_LOAD(0x5, &(0x7f0000000100)={0x11, 0x4, &(0x7f0000000240)=ANY=[@ANYBLOB="18000000000000000000000000000000850000007600000095"], &(0x7f00000001c0)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000080)='xdp_exception\x00', r0}, 0x10)
r1 = socket$inet_tcp(0x2, 0x1, 0x0)
r2 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000500)={0x6, 0x4, &(0x7f0000000200)=ANY=[@ANYBLOB="18020000fdffffee0000000000000000850000002c00000095"], &(0x7f0000000040)='GPL\x00'}, 0x94)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000380)={'syz_tun\x00', <r3=>0x0})
bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f00000003c0)={r2, r3}, 0x40)
syz_emit_ethernet(0xbc5, &(0x7f0000006380)=ANY=[], 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$PROG_LOAD-socket$packet-bpf$PROG_LOAD-setsockopt$sock_attach_bpf-bpf$PROG_LOAD_XDP-bpf$BPF_PROG_TEST_RUN
detailed listing:
executing program 0:
r0 = bpf$MAP_CREATE(0x0, &(0x7f00000008c0)=ANY=[@ANYBLOB="0a00000002000000ff0f000007"], 0x48)
bpf$PROG_LOAD(0x5, &(0x7f00000007c0)={0x8, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000130000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000000000000b70400000000000085000000c300000095"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0}, 0x94)
r1 = socket$packet(0x11, 0x2, 0x300)
r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000880)={0x1, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x10, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
setsockopt$sock_attach_bpf(r1, 0x1, 0x32, &(0x7f0000000180)=r2, 0x4)
r3 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000240)={0x6, 0x3, &(0x7f0000000680)=ANY=[@ANYBLOB="1800000002000000000000000000000095"], &(0x7f0000000040)='syzkaller\x00'}, 0x94)
bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000600)={r3, 0x5, 0x14, 0x0, &(0x7f00000000c0)="259a53f271b7ed2608004c6588a8ceccfc9270df", 0x0, 0xd01, 0x2a0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0x50)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$nilfs2-openat$cgroup_ro-mmap-ftruncate-prlimit64-sched_setscheduler-mmap
detailed listing:
executing program 0:
syz_mount_image$nilfs2(&(0x7f0000000000), &(0x7f0000000080)='./file0\x00', 0x0, &(0x7f0000000400)=ANY=[], 0x1, 0xf53, &(0x7f0000000bc0)="$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")
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='pids.current\x00', 0x275a, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x28011, r0, 0x0)
ftruncate(r0, 0xc17a)
prlimit64(0x0, 0xe, 0x0, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000240)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=45.39180184s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)

program did not crash
testing program (duration=45.39180184s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)

program did not crash
testing program (duration=45.39180184s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)

program did not crash
testing program (duration=45.39180184s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)

program did not crash
testing program (duration=45.39180184s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)

program did not crash
testing program (duration=45.39180184s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
syz_usb_control_io(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io$printer(0xffffffffffffffff, 0x0, 0x0)

program did not crash
testing program (duration=45.39180184s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)

program did not crash
testing program (duration=45.39180184s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.39180184s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open
simplifying C reproducer
testing compiled C program (duration=45.39180184s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open
testing compiled C program (duration=45.39180184s, {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-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
program did not crash
testing compiled C program (duration=45.39180184s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
program did not crash
testing compiled C program (duration=45.39180184s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open
testing compiled C program (duration=45.39180184s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
program did not crash
testing compiled C program (duration=45.39180184s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
program did not crash
testing compiled C program (duration=45.39180184s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
program did not crash
testing compiled C program (duration=45.39180184s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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:false 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-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
program did not crash
testing program (duration=45.39180184s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open
validation run: crashed=true
testing program (duration=45.39180184s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open
validation run: crashed=true
testing program (duration=45.39180184s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=45.39180184s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=45.39180184s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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-syz_usb_control_io$cdc_ecm-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000d00)=ANY=[@ANYBLOB="120100021982302013042360e5ec0102030109021b0001000060020904840001ee48b100090582"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open
validation run: crashed=true
reproducing took 45m27.627471614s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in v4l2_fh_init drivers/media/v4l2-core/v4l2-fh.c:25 [inline]
BUG: KASAN: slab-use-after-free in v4l2_fh_open+0xac/0x420 drivers/media/v4l2-core/v4l2-fh.c:64
Read of size 8 at addr ffff888029270740 by task v4l_id/6100

CPU: 0 UID: 0 PID: 6100 Comm: v4l_id Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xca/0x240 mm/kasan/report.c:482
 kasan_report+0x118/0x150 mm/kasan/report.c:595
 v4l2_fh_init drivers/media/v4l2-core/v4l2-fh.c:25 [inline]
 v4l2_fh_open+0xac/0x420 drivers/media/v4l2-core/v4l2-fh.c:64
 em28xx_v4l2_open+0x157/0x9a0 drivers/media/usb/em28xx/em28xx-video.c:2153
 v4l2_open+0x1bf/0x3a0 drivers/media/v4l2-core/v4l2-dev.c:433
 chrdev_open+0x4cc/0x5e0 fs/char_dev.c:414
 do_dentry_open+0x953/0x13f0 fs/open.c:962
 vfs_open+0x3b/0x340 fs/open.c:1094
 do_open fs/namei.c:3975 [inline]
 path_openat+0x2efb/0x3860 fs/namei.c:4134
 do_filp_open+0x1fa/0x410 fs/namei.c:4161
 do_sys_openat2+0x121/0x1c0 fs/open.c:1434
 do_sys_open fs/open.c:1449 [inline]
 __do_sys_openat fs/open.c:1465 [inline]
 __se_sys_openat fs/open.c:1460 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1460
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbcf68a7407
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:00007ffdd50b9ca0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fbcf6f4a880 RCX: 00007fbcf68a7407
RDX: 0000000000000000 RSI: 00007ffdd50bbf1c RDI: ffffffffffffff9c
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007ffdd50b9ef0 R14: 00007fbcf704f000 R15: 000055c090f194d8
 </TASK>

Allocated by task 6082:
 kasan_save_stack mm/kasan/common.c:56 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:77
 poison_kmalloc_redzone mm/kasan/common.c:397 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:414
 kasan_kmalloc include/linux/kasan.h:262 [inline]
 __kmalloc_cache_noprof+0x3e2/0x700 mm/slub.c:5791
 kmalloc_noprof include/linux/slab.h:957 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 em28xx_v4l2_init+0x10b/0x2e70 drivers/media/usb/em28xx/em28xx-video.c:2532
 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1117
 process_one_work+0x94a/0x15d0 kernel/workqueue.c:3267
 process_scheduled_works kernel/workqueue.c:3350 [inline]
 worker_thread+0x9b0/0xee0 kernel/workqueue.c:3431
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 6082:
 kasan_save_stack mm/kasan/common.c:56 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:77
 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:252 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:284
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2546 [inline]
 slab_free mm/slub.c:6678 [inline]
 kfree+0x19a/0x6e0 mm/slub.c:6886
 em28xx_free_v4l2 drivers/media/usb/em28xx/em28xx-video.c:2118 [inline]
 kref_put include/linux/kref.h:65 [inline]
 em28xx_v4l2_init+0x1683/0x2e70 drivers/media/usb/em28xx/em28xx-video.c:2901
 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1117
 process_one_work+0x94a/0x15d0 kernel/workqueue.c:3267
 process_scheduled_works kernel/workqueue.c:3350 [inline]
 worker_thread+0x9b0/0xee0 kernel/workqueue.c:3431
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 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 ffff888029270000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 1856 bytes inside of
 freed 8192-byte region [ffff888029270000, ffff888029272000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x29270
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
ksm flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813ff27280 ffffea0000ad8600 0000000000000003
raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88813ff27280 ffffea0000ad8600 0000000000000003
head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a49c01 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5879, tgid 5879 (syz-executor), ts 79642135223, free_ts 60152063699
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3920
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5209
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2486
 alloc_slab_page mm/slub.c:3084 [inline]
 allocate_slab+0x96/0x350 mm/slub.c:3257
 new_slab mm/slub.c:3311 [inline]
 ___slab_alloc+0xf56/0x1990 mm/slub.c:4671
 __slab_alloc+0x65/0x100 mm/slub.c:4794
 __slab_alloc_node mm/slub.c:4870 [inline]
 slab_alloc_node mm/slub.c:5266 [inline]
 __do_kmalloc_node mm/slub.c:5671 [inline]
 __kmalloc_noprof+0x47d/0x800 mm/slub.c:5684
 kmalloc_noprof include/linux/slab.h:961 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 ops_init+0x7b/0x5c0 net/core/net_namespace.c:127
 setup_net+0x110/0x330 net/core/net_namespace.c:446
 copy_net_ns+0x34e/0x560 net/core/net_namespace.c:581
 create_new_namespaces+0x3d3/0x710 kernel/nsproxy.c:111
 unshare_nsproxy_namespaces+0x11c/0x170 kernel/nsproxy.c:222
 ksys_unshare+0x4c8/0x8c0 kernel/fork.c:3129
 __do_sys_unshare kernel/fork.c:3200 [inline]
 __se_sys_unshare kernel/fork.c:3198 [inline]
 __x64_sys_unshare+0x38/0x50 kernel/fork.c:3198
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
page last free pid 5704 tgid 5704 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0xbc8/0xd30 mm/page_alloc.c:2948
 __slab_free+0x288/0x2e0 mm/slub.c:6018
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:349
 kasan_slab_alloc include/linux/kasan.h:252 [inline]
 slab_post_alloc_hook mm/slub.c:4968 [inline]
 slab_alloc_node mm/slub.c:5278 [inline]
 kmem_cache_alloc_noprof+0x37d/0x700 mm/slub.c:5285
 getname_flags+0xb8/0x540 fs/namei.c:146
 getname include/linux/fs.h:2521 [inline]
 getname_maybe_null include/linux/fs.h:2528 [inline]
 vfs_fstatat+0x43/0x170 fs/stat.c:370
 __do_sys_newfstatat fs/stat.c:542 [inline]
 __se_sys_newfstatat fs/stat.c:536 [inline]
 __x64_sys_newfstatat+0x116/0x190 fs/stat.c:536
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff888029270600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888029270680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888029270700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff888029270780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888029270800: 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_fh_init drivers/media/v4l2-core/v4l2-fh.c:25 [inline]
BUG: KASAN: slab-use-after-free in v4l2_fh_open+0xac/0x420 drivers/media/v4l2-core/v4l2-fh.c:64
Read of size 8 at addr ffff888029270740 by task v4l_id/6100

CPU: 0 UID: 0 PID: 6100 Comm: v4l_id Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xca/0x240 mm/kasan/report.c:482
 kasan_report+0x118/0x150 mm/kasan/report.c:595
 v4l2_fh_init drivers/media/v4l2-core/v4l2-fh.c:25 [inline]
 v4l2_fh_open+0xac/0x420 drivers/media/v4l2-core/v4l2-fh.c:64
 em28xx_v4l2_open+0x157/0x9a0 drivers/media/usb/em28xx/em28xx-video.c:2153
 v4l2_open+0x1bf/0x3a0 drivers/media/v4l2-core/v4l2-dev.c:433
 chrdev_open+0x4cc/0x5e0 fs/char_dev.c:414
 do_dentry_open+0x953/0x13f0 fs/open.c:962
 vfs_open+0x3b/0x340 fs/open.c:1094
 do_open fs/namei.c:3975 [inline]
 path_openat+0x2efb/0x3860 fs/namei.c:4134
 do_filp_open+0x1fa/0x410 fs/namei.c:4161
 do_sys_openat2+0x121/0x1c0 fs/open.c:1434
 do_sys_open fs/open.c:1449 [inline]
 __do_sys_openat fs/open.c:1465 [inline]
 __se_sys_openat fs/open.c:1460 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1460
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbcf68a7407
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:00007ffdd50b9ca0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fbcf6f4a880 RCX: 00007fbcf68a7407
RDX: 0000000000000000 RSI: 00007ffdd50bbf1c RDI: ffffffffffffff9c
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007ffdd50b9ef0 R14: 00007fbcf704f000 R15: 000055c090f194d8
 </TASK>

Allocated by task 6082:
 kasan_save_stack mm/kasan/common.c:56 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:77
 poison_kmalloc_redzone mm/kasan/common.c:397 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:414
 kasan_kmalloc include/linux/kasan.h:262 [inline]
 __kmalloc_cache_noprof+0x3e2/0x700 mm/slub.c:5791
 kmalloc_noprof include/linux/slab.h:957 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 em28xx_v4l2_init+0x10b/0x2e70 drivers/media/usb/em28xx/em28xx-video.c:2532
 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1117
 process_one_work+0x94a/0x15d0 kernel/workqueue.c:3267
 process_scheduled_works kernel/workqueue.c:3350 [inline]
 worker_thread+0x9b0/0xee0 kernel/workqueue.c:3431
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 6082:
 kasan_save_stack mm/kasan/common.c:56 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:77
 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:252 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:284
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2546 [inline]
 slab_free mm/slub.c:6678 [inline]
 kfree+0x19a/0x6e0 mm/slub.c:6886
 em28xx_free_v4l2 drivers/media/usb/em28xx/em28xx-video.c:2118 [inline]
 kref_put include/linux/kref.h:65 [inline]
 em28xx_v4l2_init+0x1683/0x2e70 drivers/media/usb/em28xx/em28xx-video.c:2901
 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1117
 process_one_work+0x94a/0x15d0 kernel/workqueue.c:3267
 process_scheduled_works kernel/workqueue.c:3350 [inline]
 worker_thread+0x9b0/0xee0 kernel/workqueue.c:3431
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 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 ffff888029270000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 1856 bytes inside of
 freed 8192-byte region [ffff888029270000, ffff888029272000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x29270
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
ksm flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813ff27280 ffffea0000ad8600 0000000000000003
raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88813ff27280 ffffea0000ad8600 0000000000000003
head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a49c01 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5879, tgid 5879 (syz-executor), ts 79642135223, free_ts 60152063699
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3920
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5209
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2486
 alloc_slab_page mm/slub.c:3084 [inline]
 allocate_slab+0x96/0x350 mm/slub.c:3257
 new_slab mm/slub.c:3311 [inline]
 ___slab_alloc+0xf56/0x1990 mm/slub.c:4671
 __slab_alloc+0x65/0x100 mm/slub.c:4794
 __slab_alloc_node mm/slub.c:4870 [inline]
 slab_alloc_node mm/slub.c:5266 [inline]
 __do_kmalloc_node mm/slub.c:5671 [inline]
 __kmalloc_noprof+0x47d/0x800 mm/slub.c:5684
 kmalloc_noprof include/linux/slab.h:961 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 ops_init+0x7b/0x5c0 net/core/net_namespace.c:127
 setup_net+0x110/0x330 net/core/net_namespace.c:446
 copy_net_ns+0x34e/0x560 net/core/net_namespace.c:581
 create_new_namespaces+0x3d3/0x710 kernel/nsproxy.c:111
 unshare_nsproxy_namespaces+0x11c/0x170 kernel/nsproxy.c:222
 ksys_unshare+0x4c8/0x8c0 kernel/fork.c:3129
 __do_sys_unshare kernel/fork.c:3200 [inline]
 __se_sys_unshare kernel/fork.c:3198 [inline]
 __x64_sys_unshare+0x38/0x50 kernel/fork.c:3198
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
page last free pid 5704 tgid 5704 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0xbc8/0xd30 mm/page_alloc.c:2948
 __slab_free+0x288/0x2e0 mm/slub.c:6018
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:349
 kasan_slab_alloc include/linux/kasan.h:252 [inline]
 slab_post_alloc_hook mm/slub.c:4968 [inline]
 slab_alloc_node mm/slub.c:5278 [inline]
 kmem_cache_alloc_noprof+0x37d/0x700 mm/slub.c:5285
 getname_flags+0xb8/0x540 fs/namei.c:146
 getname include/linux/fs.h:2521 [inline]
 getname_maybe_null include/linux/fs.h:2528 [inline]
 vfs_fstatat+0x43/0x170 fs/stat.c:370
 __do_sys_newfstatat fs/stat.c:542 [inline]
 __se_sys_newfstatat fs/stat.c:536 [inline]
 __x64_sys_newfstatat+0x116/0x190 fs/stat.c:536
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff888029270600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888029270680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888029270700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff888029270780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888029270800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================