Extracting prog: 4m17.810892462s
Minimizing prog: 52m2.027484802s
Simplifying prog options: 8m41.516605341s
Extracting C: 4m22.494142942s
Simplifying C: 0s


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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program crashed: KASAN: slab-use-after-free Read in ep_open
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)

program did not crash
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=4m13.347920704s, {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}}): mkdirat-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=4m13.347920704s, {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}}): mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, 0x0, 0x0)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200), 0x0)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
program did not crash
simplifying guilty program options
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=4m13.347920704s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
validation run: crashed=false
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
validation run: crashed=false
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program crashed: KASAN: slab-use-after-free Read in ep_open
validation run: crashed=true
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
validation run: crashed=false
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program crashed: KASAN: slab-use-after-free Read in ep_open
validation run: crashed=true
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
validation run: crashed=false
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
validation run: crashed=false
testing program (duration=4m13.347920704s, {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}}): mkdirat-mount-openat-write-syz_clone3
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./gadget\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./gadget\x00', &(0x7f0000000180)='gadgetfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./gadget/dummy_udc\x00', 0x2, 0x84)
write(r0, &(0x7f0000000200)="000000000902190001010080320904000001ff000000070581024000000902190001010080320904000001ff00000007058102000200120100020000004034127856000100000001", 0x48)
syz_clone3(&(0x7f0000000180)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program crashed: KASAN: slab-use-after-free Read in ep_open
validation run: crashed=true
reproducing took 1h42m9.415192225s
repro crashed as (corrupted=false):
=========================================
==================================================================
BUG: KASAN: slab-use-after-free in __mutex_lock_common kernel/locking/mutex.c:625 [inline]
BUG: KASAN: slab-use-after-free in __mutex_lock+0x14e/0x15a0 kernel/locking/mutex.c:821
Read of size 8 at addr ffff8880551c1858 by task syz-executor/6629

CPU: 1 UID: 0 PID: 6629 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
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
 __mutex_lock_common kernel/locking/mutex.c:625 [inline]
 __mutex_lock+0x14e/0x15a0 kernel/locking/mutex.c:821
 ep_open+0x4e/0x270 drivers/usb/gadget/legacy/inode.c:953
 do_dentry_open+0x80e/0x1360 fs/open.c:1000
 vfs_open_consume+0x4a/0x350 fs/open.c:1131
 do_open fs/namei.c:4851 [inline]
 path_openat+0x16fc/0x20f0 fs/namei.c:5016
 do_file_open+0x23e/0x4a0 fs/namei.c:5045
 do_sys_openat2+0x115/0x200 fs/open.c:1442
 do_sys_open fs/open.c:1448 [inline]
 __do_sys_openat fs/open.c:1788 [inline]
 __se_sys_openat fs/open.c:1783 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1783
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fefed95fd8e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007fffde3bbe78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000555561cbd500 RCX: 00007fefed95fd8e
RDX: 0000000000000000 RSI: 00007fffde3bbfe0 RDI: ffffffffffffff9c
RBP: 00007fffde3bbfe0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffde3bd0d0
R13: 00007fefeda35f93 R14: 0000555561cbd4e8 R15: 0000000000000006
 </TASK>

Allocated by task 6979:
 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:409 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:426
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x31c/0x600 mm/slub.c:5680
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 activate_ep_files drivers/usb/gadget/legacy/inode.c:1732 [inline]
 gadgetfs_bind+0x2ef/0xb10 drivers/usb/gadget/legacy/inode.c:1825
 gadget_bind_driver+0x2ca/0x9e0 drivers/usb/gadget/udc/core.c:1663
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:707
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:869
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:899
 __driver_attach+0x34e/0x630 drivers/base/dd.c:1300
 bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:383
 bus_add_driver+0x38f/0x6e0 drivers/base/bus.c:782
 driver_register+0x23a/0x320 drivers/base/driver.c:174
 usb_gadget_register_driver_owner+0xf9/0x270 drivers/usb/gadget/udc/core.c:1753
 dev_config+0xe3c/0x12a0 drivers/usb/gadget/legacy/inode.c:2015
 vfs_write+0x296/0xba0 fs/read_write.c:685
 ksys_write+0x150/0x270 fs/read_write.c:1036
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 6982:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:264 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:296
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2780 [inline]
 slab_free mm/slub.c:6630 [inline]
 kfree+0x1c5/0x650 mm/slub.c:6923
 destroy_ep_files+0x2a3/0x330 drivers/usb/gadget/legacy/inode.c:1713
 gadgetfs_unbind+0x109/0x2b0 drivers/usb/gadget/legacy/inode.c:1786
 gadget_unbind_driver+0x1cb/0x410 drivers/usb/gadget/udc/core.c:1725
 device_remove drivers/base/dd.c:617 [inline]
 __device_release_driver drivers/base/dd.c:1357 [inline]
 device_release_driver_internal+0x42b/0x7d0 drivers/base/dd.c:1380
 driver_detach+0x1f3/0x2d0 drivers/base/dd.c:1443
 bus_remove_driver+0x226/0x320 drivers/base/bus.c:851
 usb_gadget_unregister_driver+0x4e/0x70 drivers/usb/gadget/udc/core.c:1785
 dev_release+0x83/0x200 drivers/usb/gadget/legacy/inode.c:1328
 __fput+0x408/0xa40 fs/file_table.c:513
 fput_close_sync+0x11f/0x240 fs/file_table.c:619
 filp_close_sync+0x6e/0xa0 fs/open.c:1897
 close_files fs/file.c:572 [inline]
 put_files_struct+0x230/0x3c0 fs/file.c:584
 do_exit+0x6f0/0x2360 kernel/exit.c:977
 __do_sys_exit kernel/exit.c:1090 [inline]
 __se_sys_exit kernel/exit.c:1088 [inline]
 __pfx___ia32_sys_exit+0x0/0x10 kernel/exit.c:1088
 x64_sys_call+0x18b4/0x18d0 arch/x86/include/generated/asm/syscalls_64.h:61
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff8880551c1800
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 88 bytes inside of
 freed 512-byte region [ffff8880551c1800, ffff8880551c1a00)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x551c0
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813ff37c80 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88813ff37c80 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffffffffffff01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 6979, tgid 6978 (syz.0.51), ts 152334570506
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
 prep_new_page mm/page_alloc.c:1867 [inline]
 get_page_from_freelist+0x220f/0x2280 mm/page_alloc.c:3938
 __alloc_frozen_pages_noprof+0x1fe/0x410 mm/page_alloc.c:5447
 alloc_slab_page mm/slub.c:3384 [inline]
 allocate_slab+0x7d/0x5e0 mm/slub.c:3499
 new_slab mm/slub.c:3550 [inline]
 refill_objects+0x2d5/0x350 mm/slub.c:7539
 refill_sheaf mm/slub.c:2917 [inline]
 __pcs_replace_empty_main+0x2c8/0x6c0 mm/slub.c:4811
 alloc_from_pcs mm/slub.c:4887 [inline]
 slab_alloc_node mm/slub.c:5021 [inline]
 __kmalloc_cache_noprof+0x396/0x600 mm/slub.c:5676
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 activate_ep_files drivers/usb/gadget/legacy/inode.c:1732 [inline]
 gadgetfs_bind+0x2ef/0xb10 drivers/usb/gadget/legacy/inode.c:1825
 gadget_bind_driver+0x2ca/0x9e0 drivers/usb/gadget/udc/core.c:1663
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:707
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:869
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:899
 __driver_attach+0x34e/0x630 drivers/base/dd.c:1300
 bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:383
 bus_add_driver+0x38f/0x6e0 drivers/base/bus.c:782
 driver_register+0x23a/0x320 drivers/base/driver.c:174
page last free pid 13 tgid 13 ts 152218150959 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1403 [inline]
 __free_frozen_pages+0xc97/0xd90 mm/page_alloc.c:2957
 ib_port_gid_attr_release+0x39/0x70 drivers/infiniband/core/sysfs.c:723
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x222/0x550 lib/kobject.c:737
 destroy_gid_attrs drivers/infiniband/core/sysfs.c:1145 [inline]
 ib_free_port_attrs+0xd4/0x3a0 drivers/infiniband/core/sysfs.c:1367
 remove_one_compat_dev drivers/infiniband/core/device.c:1035 [inline]
 rdma_dev_exit_net+0x1dc/0x430 drivers/infiniband/core/device.c:1173
 ops_exit_list net/core/net_namespace.c:200 [inline]
 ops_undo_list+0x451/0x8f0 net/core/net_namespace.c:253
 cleanup_net+0x572/0x810 net/core/net_namespace.c:706
 process_one_work kernel/workqueue.c:3495 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
 kthread+0x38b/0x480 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

Memory state around the buggy address:
 ffff8880551c1700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880551c1780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880551c1800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                    ^
 ffff8880551c1880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880551c1900: 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 __mutex_lock_common kernel/locking/mutex.c:625 [inline]
BUG: KASAN: slab-use-after-free in __mutex_lock+0x14e/0x15a0 kernel/locking/mutex.c:821
Read of size 8 at addr ffff8880551c1858 by task syz-executor/6629

CPU: 1 UID: 0 PID: 6629 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
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
 __mutex_lock_common kernel/locking/mutex.c:625 [inline]
 __mutex_lock+0x14e/0x15a0 kernel/locking/mutex.c:821
 ep_open+0x4e/0x270 drivers/usb/gadget/legacy/inode.c:953
 do_dentry_open+0x80e/0x1360 fs/open.c:1000
 vfs_open_consume+0x4a/0x350 fs/open.c:1131
 do_open fs/namei.c:4851 [inline]
 path_openat+0x16fc/0x20f0 fs/namei.c:5016
 do_file_open+0x23e/0x4a0 fs/namei.c:5045
 do_sys_openat2+0x115/0x200 fs/open.c:1442
 do_sys_open fs/open.c:1448 [inline]
 __do_sys_openat fs/open.c:1788 [inline]
 __se_sys_openat fs/open.c:1783 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1783
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fefed95fd8e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007fffde3bbe78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000555561cbd500 RCX: 00007fefed95fd8e
RDX: 0000000000000000 RSI: 00007fffde3bbfe0 RDI: ffffffffffffff9c
RBP: 00007fffde3bbfe0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffde3bd0d0
R13: 00007fefeda35f93 R14: 0000555561cbd4e8 R15: 0000000000000006
 </TASK>

Allocated by task 6979:
 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:409 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:426
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x31c/0x600 mm/slub.c:5680
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 activate_ep_files drivers/usb/gadget/legacy/inode.c:1732 [inline]
 gadgetfs_bind+0x2ef/0xb10 drivers/usb/gadget/legacy/inode.c:1825
 gadget_bind_driver+0x2ca/0x9e0 drivers/usb/gadget/udc/core.c:1663
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:707
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:869
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:899
 __driver_attach+0x34e/0x630 drivers/base/dd.c:1300
 bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:383
 bus_add_driver+0x38f/0x6e0 drivers/base/bus.c:782
 driver_register+0x23a/0x320 drivers/base/driver.c:174
 usb_gadget_register_driver_owner+0xf9/0x270 drivers/usb/gadget/udc/core.c:1753
 dev_config+0xe3c/0x12a0 drivers/usb/gadget/legacy/inode.c:2015
 vfs_write+0x296/0xba0 fs/read_write.c:685
 ksys_write+0x150/0x270 fs/read_write.c:1036
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 6982:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:264 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:296
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2780 [inline]
 slab_free mm/slub.c:6630 [inline]
 kfree+0x1c5/0x650 mm/slub.c:6923
 destroy_ep_files+0x2a3/0x330 drivers/usb/gadget/legacy/inode.c:1713
 gadgetfs_unbind+0x109/0x2b0 drivers/usb/gadget/legacy/inode.c:1786
 gadget_unbind_driver+0x1cb/0x410 drivers/usb/gadget/udc/core.c:1725
 device_remove drivers/base/dd.c:617 [inline]
 __device_release_driver drivers/base/dd.c:1357 [inline]
 device_release_driver_internal+0x42b/0x7d0 drivers/base/dd.c:1380
 driver_detach+0x1f3/0x2d0 drivers/base/dd.c:1443
 bus_remove_driver+0x226/0x320 drivers/base/bus.c:851
 usb_gadget_unregister_driver+0x4e/0x70 drivers/usb/gadget/udc/core.c:1785
 dev_release+0x83/0x200 drivers/usb/gadget/legacy/inode.c:1328
 __fput+0x408/0xa40 fs/file_table.c:513
 fput_close_sync+0x11f/0x240 fs/file_table.c:619
 filp_close_sync+0x6e/0xa0 fs/open.c:1897
 close_files fs/file.c:572 [inline]
 put_files_struct+0x230/0x3c0 fs/file.c:584
 do_exit+0x6f0/0x2360 kernel/exit.c:977
 __do_sys_exit kernel/exit.c:1090 [inline]
 __se_sys_exit kernel/exit.c:1088 [inline]
 __pfx___ia32_sys_exit+0x0/0x10 kernel/exit.c:1088
 x64_sys_call+0x18b4/0x18d0 arch/x86/include/generated/asm/syscalls_64.h:61
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff8880551c1800
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 88 bytes inside of
 freed 512-byte region [ffff8880551c1800, ffff8880551c1a00)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x551c0
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813ff37c80 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88813ff37c80 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffffffffffff01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 6979, tgid 6978 (syz.0.51), ts 152334570506
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859
 prep_new_page mm/page_alloc.c:1867 [inline]
 get_page_from_freelist+0x220f/0x2280 mm/page_alloc.c:3938
 __alloc_frozen_pages_noprof+0x1fe/0x410 mm/page_alloc.c:5447
 alloc_slab_page mm/slub.c:3384 [inline]
 allocate_slab+0x7d/0x5e0 mm/slub.c:3499
 new_slab mm/slub.c:3550 [inline]
 refill_objects+0x2d5/0x350 mm/slub.c:7539
 refill_sheaf mm/slub.c:2917 [inline]
 __pcs_replace_empty_main+0x2c8/0x6c0 mm/slub.c:4811
 alloc_from_pcs mm/slub.c:4887 [inline]
 slab_alloc_node mm/slub.c:5021 [inline]
 __kmalloc_cache_noprof+0x396/0x600 mm/slub.c:5676
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 activate_ep_files drivers/usb/gadget/legacy/inode.c:1732 [inline]
 gadgetfs_bind+0x2ef/0xb10 drivers/usb/gadget/legacy/inode.c:1825
 gadget_bind_driver+0x2ca/0x9e0 drivers/usb/gadget/udc/core.c:1663
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:707
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:869
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:899
 __driver_attach+0x34e/0x630 drivers/base/dd.c:1300
 bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:383
 bus_add_driver+0x38f/0x6e0 drivers/base/bus.c:782
 driver_register+0x23a/0x320 drivers/base/driver.c:174
page last free pid 13 tgid 13 ts 152218150959 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1403 [inline]
 __free_frozen_pages+0xc97/0xd90 mm/page_alloc.c:2957
 ib_port_gid_attr_release+0x39/0x70 drivers/infiniband/core/sysfs.c:723
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x222/0x550 lib/kobject.c:737
 destroy_gid_attrs drivers/infiniband/core/sysfs.c:1145 [inline]
 ib_free_port_attrs+0xd4/0x3a0 drivers/infiniband/core/sysfs.c:1367
 remove_one_compat_dev drivers/infiniband/core/device.c:1035 [inline]
 rdma_dev_exit_net+0x1dc/0x430 drivers/infiniband/core/device.c:1173
 ops_exit_list net/core/net_namespace.c:200 [inline]
 ops_undo_list+0x451/0x8f0 net/core/net_namespace.c:253
 cleanup_net+0x572/0x810 net/core/net_namespace.c:706
 process_one_work kernel/workqueue.c:3495 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
 kthread+0x38b/0x480 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

Memory state around the buggy address:
 ffff8880551c1700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880551c1780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880551c1800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                    ^
 ffff8880551c1880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880551c1900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================