Extracting prog: 2m43.94746407s Minimizing prog: 3m19.413218424s Simplifying prog options: 0s Extracting C: 42.40359197s Simplifying C: 5m15.269660143s 30 programs, timeouts [30s 1m40s 6m0s] 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): futex-futex-futex-mlock2-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-mremap-mlock2-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN-ioctl$PPPIOCSFLAGS1 detailed listing: executing program 0: futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0) futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0) futex(&(0x7f000000cffc), 0x3, 0x801, 0x0, &(0x7f0000000040), 0x0) mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x18, 0x5, &(0x7f0000000100)=ANY=[@ANYBLOB="180000000900000000000000213f0000c50000000e800000850000000e00000095"], &(0x7f0000000200)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x80) mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil) mlock2(&(0x7f0000ff8000/0x2000)=nil, 0x2000, 0x0) r0 = syz_open_procfs$pagemap(0x0, &(0x7f0000000080)) ioctl$PAGEMAP_SCAN(r0, 0xc0606610, &(0x7f0000000240)={0x60, 0x2, &(0x7f00008b0000/0x3000)=nil, &(0x7f00008e9000/0x4000)=nil, 0x670, 0x0, 0x0, 0x3, 0x40, 0x1, 0x0, 0xa}) ioctl$PPPIOCSFLAGS1(0xffffffffffffffff, 0x4004743a, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-prlimit64-sched_setscheduler-getpid-sched_setaffinity-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-syz_io_uring_setup-syz_io_uring_setup-syz_io_uring_submit-io_uring_enter-preadv-ioctl$TCFLSH-sched_setaffinity-syz_io_uring_setup-openat$proc_mixer-write$proc_mixer-openat$proc_mixer-dup3 detailed listing: executing program 0: r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000380)={0x11, 0x4, &(0x7f00000002c0)=ANY=[@ANYBLOB="1801000000000000000000000000ea04850000005000000095"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x80) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000140)={&(0x7f0000000040)='sched_switch\x00', r0}, 0x10) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r1 = getpid() sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2) sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) r4 = syz_io_uring_setup(0x6908, 0x0, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x1864, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r5, 0x0) io_uring_enter(r4, 0x184c, 0x0, 0x0, 0x0, 0x0) preadv(0xffffffffffffffff, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0) ioctl$TCFLSH(0xffffffffffffffff, 0x540b, 0x1) sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2) syz_io_uring_setup(0x10d, 0x0, &(0x7f0000000340), &(0x7f0000000280)) r6 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000000)='/proc/asound/card0/oss_mixer\x00', 0x2002, 0x0) write$proc_mixer(r6, &(0x7f0000000100)=ANY=[@ANYBLOB='VOLUME\nSYNTH \'S'], 0x32) r7 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/asound/card0/oss_mixer\x00', 0x280, 0x0) dup3(r7, r6, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setaffinity-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-bpf$PROG_LOAD-pipe-fcntl$setpipe-pipe2-fcntl$setpipe-pipe2-syz_init_net_socket$nl_generic-syz_mount_image$exfat-ioctl$SECCOMP_IOCTL_NOTIF_RECV-getsockopt$SO_COOKIE-prlimit64-open-getdents64 detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2) sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x5) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) bpf$PROG_LOAD(0x5, 0x0, 0x0) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) fcntl$setpipe(r3, 0x407, 0x7000000) pipe2(&(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) fcntl$setpipe(r5, 0x407, 0x100000) pipe2(0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_mount_image$exfat(&(0x7f00000000c0), &(0x7f0000000080)='./file0\x00', 0x800, &(0x7f0000000380)=ANY=[@ANYBLOB='iocharset=maciceland,umask=00000000000010000000011,iocharset=cp948,errors=remount-ro,uid=', @ANYRESHEX=0x0, @ANYBLOB=',iocharset=cp950,gid=', @ANYRESHEX=0x0, @ANYBLOB=',errors=remount-ro,discard,errors=continue,\x00'], 0x5, 0x1510, &(0x7f00000037c0)="$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") ioctl$SECCOMP_IOCTL_NOTIF_RECV(r4, 0xc0502100, &(0x7f0000000180)={0x0, 0x0}) getsockopt$SO_COOKIE(r4, 0x1, 0x39, &(0x7f0000000240), &(0x7f0000000280)=0x8) prlimit64(r6, 0x1, &(0x7f0000000040)={0xfffffffffffffffb, 0x5}, &(0x7f0000000100)) r7 = open(&(0x7f00000000c0)='.\x00', 0x0, 0x0) getdents64(r7, &(0x7f0000002ec0)=""/4096, 0x1000) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_open_dev$dri detailed listing: executing program 0: syz_usb_connect(0x5, 0x2d, &(0x7f0000000500)=ANY=[@ANYBLOB="12010000fa7010081304236036b60102030109021b0001000000000904bf00017a9ec000090582"], 0x0) syz_open_dev$dri(0x0, 0x1ff, 0x0) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open single: successfully extracted reproducer found reproducer with 2 syscalls minimizing guilty program testing program (duration=1m5.493925902s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x5, 0x2d, &(0x7f0000000500)=ANY=[@ANYBLOB="12010000fa7010081304236036b60102030109021b0001000000000904bf00017a9ec000090582"], 0x0) program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing program (duration=1m5.493925902s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x5, 0x2d, 0x0, 0x0) program did not crash testing program (duration=1m5.493925902s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x5, 0x2d, &(0x7f0000000500)=ANY=[@ANYBLOB], 0x0) program did not crash extracting C reproducer testing compiled C program (duration=1m5.493925902s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open simplifying C reproducer testing compiled C program (duration=1m5.493925902s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing compiled C program (duration=1m5.493925902s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program did not crash testing compiled C program (duration=1m5.493925902s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing compiled C program (duration=1m5.493925902s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing compiled C program (duration=1m5.493925902s, {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:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing compiled C program (duration=1m5.493925902s, {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:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open testing compiled C program (duration=1m5.493925902s, {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:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: KASAN: slab-use-after-free Read in v4l2_fh_open reproducing took 12m1.033955174s 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+0xc8/0x430 drivers/media/v4l2-core/v4l2-fh.c:63 Read of size 8 at addr ffff888028f1c738 by task v4l_id/5484 CPU: 1 UID: 0 PID: 5484 Comm: v4l_id Not tainted 6.12.0-rc2-next-20241008-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 v4l2_fh_init drivers/media/v4l2-core/v4l2-fh.c:25 [inline] v4l2_fh_open+0xc8/0x430 drivers/media/v4l2-core/v4l2-fh.c:63 em28xx_v4l2_open+0x14c/0x9d0 drivers/media/usb/em28xx/em28xx-video.c:2155 v4l2_open+0x22f/0x370 drivers/media/v4l2-core/v4l2-dev.c:427 chrdev_open+0x521/0x600 fs/char_dev.c:414 do_dentry_open+0x978/0x1460 fs/open.c:958 vfs_open+0x3e/0x330 fs/open.c:1088 do_open fs/namei.c:3774 [inline] path_openat+0x2c84/0x3590 fs/namei.c:3933 do_filp_open+0x235/0x490 fs/namei.c:3960 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc8b43169a4 Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007fff57d3cf40 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fff57d3d158 RCX: 00007fc8b43169a4 RDX: 0000000000000000 RSI: 00007fff57d3df1f RDI: 00000000ffffff9c RBP: 00007fff57d3df1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff57d3d170 R14: 000055d244ee8670 R15: 00007fc8b4863a80 Allocated by task 5275: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x243/0x390 mm/slub.c:4321 kmalloc_noprof include/linux/slab.h:879 [inline] kzalloc_noprof include/linux/slab.h:1015 [inline] em28xx_v4l2_init+0xfd/0x2f40 drivers/media/usb/em28xx/em28xx-video.c:2534 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1117 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Freed by task 5275: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2346 [inline] slab_free mm/slub.c:4605 [inline] kfree+0x1a0/0x440 mm/slub.c:4753 em28xx_free_v4l2 drivers/media/usb/em28xx/em28xx-video.c:2120 [inline] kref_put include/linux/kref.h:65 [inline] em28xx_v4l2_init+0x16d7/0x2f40 drivers/media/usb/em28xx/em28xx-video.c:2903 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1117 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 The buggy address belongs to the object at ffff888028f1c000 which belongs to the cache kmalloc-8k of size 8192 The buggy address is located 1848 bytes inside of freed 8192-byte region [ffff888028f1c000, ffff888028f1e000) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28f18 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000040 ffff88801ac42280 0000000000000000 0000000000000001 raw: 0000000000000000 0000000080020002 00000001f5000000 0000000000000000 head: 00fff00000000040 ffff88801ac42280 0000000000000000 0000000000000001 head: 0000000000000000 0000000080020002 00000001f5000000 0000000000000000 head: 00fff00000000003 ffffea0000a3c601 ffffffffffffffff 0000000000000000 head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4900, tgid 4900 (start-stop-daem), ts 30425128560, free_ts 30386784945 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3129/0x3270 mm/page_alloc.c:3493 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4769 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265 alloc_slab_page+0x6a/0x120 mm/slub.c:2416 allocate_slab+0x5a/0x2f0 mm/slub.c:2582 new_slab mm/slub.c:2635 [inline] ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3822 __slab_alloc+0x58/0xa0 mm/slub.c:3912 __slab_alloc_node mm/slub.c:3987 [inline] slab_alloc_node mm/slub.c:4148 [inline] __kmalloc_cache_noprof+0x27b/0x390 mm/slub.c:4316 kmalloc_noprof include/linux/slab.h:879 [inline] kzalloc_noprof include/linux/slab.h:1015 [inline] tomoyo_print_bprm security/tomoyo/audit.c:26 [inline] tomoyo_init_log+0x11cd/0x2050 security/tomoyo/audit.c:264 tomoyo_supervisor+0x38a/0x11f0 security/tomoyo/common.c:2089 tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline] tomoyo_env_perm+0x178/0x210 security/tomoyo/environ.c:63 tomoyo_environ security/tomoyo/domain.c:672 [inline] tomoyo_find_next_domain+0x146e/0x1d40 security/tomoyo/domain.c:881 tomoyo_bprm_check_security+0x114/0x180 security/tomoyo/tomoyo.c:102 security_bprm_check+0x86/0x250 security/security.c:1297 search_binary_handler fs/exec.c:1740 [inline] exec_binprm fs/exec.c:1794 [inline] bprm_execve+0xa56/0x1770 fs/exec.c:1845 page last free pid 4900 tgid 4900 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2674 discard_slab mm/slub.c:2681 [inline] __put_partials+0xeb/0x130 mm/slub.c:3149 put_cpu_partial+0x17c/0x250 mm/slub.c:3224 __slab_free+0x2ea/0x3d0 mm/slub.c:4475 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4111 [inline] slab_alloc_node mm/slub.c:4160 [inline] kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4167 getname_flags+0xb7/0x540 fs/namei.c:139 do_sys_openat2+0xd2/0x1d0 fs/open.c:1409 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff888028f1c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888028f1c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888028f1c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888028f1c780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888028f1c800: 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+0xc8/0x430 drivers/media/v4l2-core/v4l2-fh.c:63 Read of size 8 at addr ffff888028f1c738 by task v4l_id/5484 CPU: 1 UID: 0 PID: 5484 Comm: v4l_id Not tainted 6.12.0-rc2-next-20241008-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 v4l2_fh_init drivers/media/v4l2-core/v4l2-fh.c:25 [inline] v4l2_fh_open+0xc8/0x430 drivers/media/v4l2-core/v4l2-fh.c:63 em28xx_v4l2_open+0x14c/0x9d0 drivers/media/usb/em28xx/em28xx-video.c:2155 v4l2_open+0x22f/0x370 drivers/media/v4l2-core/v4l2-dev.c:427 chrdev_open+0x521/0x600 fs/char_dev.c:414 do_dentry_open+0x978/0x1460 fs/open.c:958 vfs_open+0x3e/0x330 fs/open.c:1088 do_open fs/namei.c:3774 [inline] path_openat+0x2c84/0x3590 fs/namei.c:3933 do_filp_open+0x235/0x490 fs/namei.c:3960 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc8b43169a4 Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007fff57d3cf40 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fff57d3d158 RCX: 00007fc8b43169a4 RDX: 0000000000000000 RSI: 00007fff57d3df1f RDI: 00000000ffffff9c RBP: 00007fff57d3df1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff57d3d170 R14: 000055d244ee8670 R15: 00007fc8b4863a80 Allocated by task 5275: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x243/0x390 mm/slub.c:4321 kmalloc_noprof include/linux/slab.h:879 [inline] kzalloc_noprof include/linux/slab.h:1015 [inline] em28xx_v4l2_init+0xfd/0x2f40 drivers/media/usb/em28xx/em28xx-video.c:2534 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1117 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Freed by task 5275: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2346 [inline] slab_free mm/slub.c:4605 [inline] kfree+0x1a0/0x440 mm/slub.c:4753 em28xx_free_v4l2 drivers/media/usb/em28xx/em28xx-video.c:2120 [inline] kref_put include/linux/kref.h:65 [inline] em28xx_v4l2_init+0x16d7/0x2f40 drivers/media/usb/em28xx/em28xx-video.c:2903 em28xx_init_extension+0x120/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1117 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 The buggy address belongs to the object at ffff888028f1c000 which belongs to the cache kmalloc-8k of size 8192 The buggy address is located 1848 bytes inside of freed 8192-byte region [ffff888028f1c000, ffff888028f1e000) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28f18 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000040 ffff88801ac42280 0000000000000000 0000000000000001 raw: 0000000000000000 0000000080020002 00000001f5000000 0000000000000000 head: 00fff00000000040 ffff88801ac42280 0000000000000000 0000000000000001 head: 0000000000000000 0000000080020002 00000001f5000000 0000000000000000 head: 00fff00000000003 ffffea0000a3c601 ffffffffffffffff 0000000000000000 head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4900, tgid 4900 (start-stop-daem), ts 30425128560, free_ts 30386784945 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0x3129/0x3270 mm/page_alloc.c:3493 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4769 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265 alloc_slab_page+0x6a/0x120 mm/slub.c:2416 allocate_slab+0x5a/0x2f0 mm/slub.c:2582 new_slab mm/slub.c:2635 [inline] ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3822 __slab_alloc+0x58/0xa0 mm/slub.c:3912 __slab_alloc_node mm/slub.c:3987 [inline] slab_alloc_node mm/slub.c:4148 [inline] __kmalloc_cache_noprof+0x27b/0x390 mm/slub.c:4316 kmalloc_noprof include/linux/slab.h:879 [inline] kzalloc_noprof include/linux/slab.h:1015 [inline] tomoyo_print_bprm security/tomoyo/audit.c:26 [inline] tomoyo_init_log+0x11cd/0x2050 security/tomoyo/audit.c:264 tomoyo_supervisor+0x38a/0x11f0 security/tomoyo/common.c:2089 tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline] tomoyo_env_perm+0x178/0x210 security/tomoyo/environ.c:63 tomoyo_environ security/tomoyo/domain.c:672 [inline] tomoyo_find_next_domain+0x146e/0x1d40 security/tomoyo/domain.c:881 tomoyo_bprm_check_security+0x114/0x180 security/tomoyo/tomoyo.c:102 security_bprm_check+0x86/0x250 security/security.c:1297 search_binary_handler fs/exec.c:1740 [inline] exec_binprm fs/exec.c:1794 [inline] bprm_execve+0xa56/0x1770 fs/exec.c:1845 page last free pid 4900 tgid 4900 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2674 discard_slab mm/slub.c:2681 [inline] __put_partials+0xeb/0x130 mm/slub.c:3149 put_cpu_partial+0x17c/0x250 mm/slub.c:3224 __slab_free+0x2ea/0x3d0 mm/slub.c:4475 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4111 [inline] slab_alloc_node mm/slub.c:4160 [inline] kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4167 getname_flags+0xb7/0x540 fs/namei.c:139 do_sys_openat2+0xd2/0x1d0 fs/open.c:1409 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff888028f1c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888028f1c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888028f1c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888028f1c780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888028f1c800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================