Extracting prog: 1m4.949404884s
Minimizing prog: 10m16.265507566s
Simplifying prog options: 0s
Extracting C: 23.555812898s
Simplifying C: 2m55.560444742s


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: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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat$cgroup_root-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program crashed: KASAN: invalid-free in f_uac2_opts_p_srate_store
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat$cgroup_root-openat
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat$cgroup_root-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0)
write(0xffffffffffffffff, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program crashed: KASAN: invalid-free in f_uac2_opts_p_srate_store
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(0x0, 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', 0x0, 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(0x0, 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(0x0, 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, 0x0, 0x0)

program did not crash
testing program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
program crashed: KASAN: invalid-free in f_uac2_opts_p_srate_store
simplifying C reproducer
testing compiled C program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
program crashed: KASAN: invalid-free in f_uac2_opts_p_srate_store
testing compiled C program (duration=33.627968289s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
program crashed: KASAN: invalid-free in f_uac2_opts_p_srate_store
testing compiled C program (duration=33.627968289s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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}}): mkdir-mount-mkdir-mkdir-openat-write
program crashed: KASAN: invalid-free in f_uac2_opts_p_srate_store
testing compiled C program (duration=33.627968289s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
program crashed: KASAN: invalid-free in f_uac2_opts_p_srate_store
testing compiled C program (duration=33.627968289s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
program crashed: KASAN: invalid-free in f_uac2_opts_p_srate_store
testing compiled C program (duration=33.627968289s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
program crashed: KASAN: invalid-free in f_uac2_opts_p_srate_store
testing program (duration=33.627968289s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program crashed: KASAN: invalid-free in f_uac2_opts_p_srate_store
validation run: crashed=true
testing program (duration=33.627968289s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program crashed: KASAN: invalid-free in f_uac2_opts_p_srate_store
validation run: crashed=true
testing program (duration=33.627968289s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-mkdir-mkdir-openat-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='config\x00', &(0x7f0000000200)='configfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000300)='config/usb_gadget/g1\x00', 0x1ff)
mkdir(&(0x7f0000000500)='config/usb_gadget/g1/functions/uac2.usb0\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='config/usb_gadget/g1/functions/uac2.usb0/p_srate\x00', 0x1, 0x0)
write(r0, &(0x7f0000000d40)="343431301d4434383030302c393630303000b86e0484d7d827d3b9a91aed13fd06639e0ca6b206125fd78be687d55ce0d767f54f6f280a3700806c263bccc3fb66076e31ca486fe3822341671ac47abf010a3fe2c280815c5d4470f0c8cf3842020000000000000042da90088a4116ce6c3df607b4aa8279c55000041c0fc1dee2b808000000ead0182d51e8c76a74a1cbc22f9831d6df8c2652ef67436e4b10462abecb66e298e8b8ffb211dcf0ab6f5740162d6feac523e95080f6d7d5471990ea9dcfaa11ee90e46dbb558b2fe4d60016924a1b34df811717489bad20a009ca0d2d7157738048562ed2daed3146f59d14e700"/257, 0x101)

program crashed: KASAN: invalid-free in f_uac2_opts_p_srate_store
validation run: crashed=true
reproducing took 16m27.09827096s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: invalid-free in slab_free mm/slub.c:3712 [inline]
BUG: KASAN: invalid-free in __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3728
Free of addr ffff88812a6d648c by task syz.2.17/375

CPU: 1 PID: 375 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 print_address_description+0x71/0x200 mm/kasan/report.c:316
 print_report+0x4a/0x60 mm/kasan/report.c:420
 kasan_report_invalid_free+0xd5/0xf0 mm/kasan/report.c:489
 ____kasan_slab_free+0x14f/0x180 mm/kasan/common.c:-1
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1750 [inline]
 slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
 slab_free mm/slub.c:3712 [inline]
 __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3728
 kfree+0x6f/0xf0 mm/slab_common.c:990
 f_uac2_opts_p_srate_store+0x220/0x2a0 drivers/usb/gadget/function/f_uac2.c:2078
 flush_write_buffer fs/configfs/file.c:207 [inline]
 configfs_write_iter+0x323/0x410 fs/configfs/file.c:229
 call_write_iter include/linux/fs.h:2282 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5ef/0xd00 fs/read_write.c:584
 ksys_write+0x14a/0x260 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 x64_sys_call+0x27b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fc19699e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc317a6d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fc196c25fa0 RCX: 00007fc19699e0d9
RDX: 0000000000000101 RSI: 0000200000000d40 RDI: 0000000000000003
RBP: 00007fc196a35024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc196c25fac R14: 00007fc196c25fa0 R15: 00007fc196c25fa0
 </TASK>

Allocated by task 375:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
 ____kasan_kmalloc mm/kasan/common.c:380 [inline]
 __kasan_kmalloc+0x95/0xb0 mm/kasan/common.c:389
 kasan_kmalloc include/linux/kasan.h:212 [inline]
 __do_kmalloc_node mm/slab_common.c:938 [inline]
 __kmalloc_node_track_caller+0xb1/0x1e0 mm/slab_common.c:958
 kstrdup+0x3b/0x80 mm/util.c:66
 f_uac2_opts_p_srate_store+0x11a/0x2a0 drivers/usb/gadget/function/f_uac2.c:2078
 flush_write_buffer fs/configfs/file.c:207 [inline]
 configfs_write_iter+0x323/0x410 fs/configfs/file.c:229
 call_write_iter include/linux/fs.h:2282 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5ef/0xd00 fs/read_write.c:584
 ksys_write+0x14a/0x260 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 x64_sys_call+0x27b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff88812a6d6480
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 12 bytes inside of
 32-byte region [ffff88812a6d6480, ffff88812a6d64a0)

The buggy address belongs to the physical page:
page:ffffea0004a9b580 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12a6d6
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 0000000000000000 dead000000000122 ffff888100042600
raw: 0000000000000000 0000000080400040 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 371, tgid 371 (syz-executor), ts 31666588950, free_ts 31105173445
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f5/0x210 mm/page_alloc.c:2672
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2679
 get_page_from_freelist+0x2ca9/0x2d20 mm/page_alloc.c:4586
 __alloc_pages+0x1fa/0x610 mm/page_alloc.c:5930
 alloc_slab_page+0x6e/0xf0 include/linux/gfp.h:-1
 allocate_slab mm/slub.c:1967 [inline]
 new_slab+0x98/0x3e0 mm/slub.c:2020
 ___slab_alloc+0x70f/0xb70 mm/slub.c:3177
 __slab_alloc+0x5e/0xa0 mm/slub.c:3263
 slab_alloc_node mm/slub.c:3348 [inline]
 __kmem_cache_alloc_node+0x204/0x2d0 mm/slub.c:3423
 kmalloc_trace+0x29/0xb0 mm/slab_common.c:1028
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 ref_tracker_alloc+0x16b/0x4a0 lib/ref_tracker.c:85
 __netdev_tracker_alloc include/linux/netdevice.h:4085 [inline]
 netdev_tracker_alloc include/linux/netdevice.h:4097 [inline]
 fib6_nh_init+0x913/0x2070 net/ipv6/route.c:3667
 ip6_route_info_create+0xa32/0x14d0 net/ipv6/route.c:3848
 ip6_route_add+0x27/0x130 net/ipv6/route.c:3892
 addrconf_prefix_route net/ipv6/addrconf.c:2466 [inline]
 fixup_permanent_addr net/ipv6/addrconf.c:3569 [inline]
 addrconf_permanent_addr+0x635/0x940 net/ipv6/addrconf.c:3593
 addrconf_notify+0x7ca/0xe30 net/ipv6/addrconf.c:3665
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1580 [inline]
 free_pcp_prepare mm/page_alloc.c:1654 [inline]
 free_unref_page_prepare+0x80c/0x820 mm/page_alloc.c:3621
 free_unref_page+0x93/0x530 mm/page_alloc.c:3719
 free_the_page mm/page_alloc.c:863 [inline]
 __free_pages+0x67/0x100 mm/page_alloc.c:6020
 __vunmap+0xa3c/0xc00 mm/vmalloc.c:2739
 __vfree mm/vmalloc.c:2788 [inline]
 vfree+0x61/0x90 mm/vmalloc.c:2819
 kcov_put kernel/kcov.c:437 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:533
 __fput+0x1fd/0x8f0 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1e1/0x250 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0xaf2/0x2850 kernel/exit.c:887
 do_group_exit+0x21b/0x2e0 kernel/exit.c:1030
 get_signal+0x167c/0x1700 kernel/signal.c:2895
 arch_do_signal_or_restart+0xd1/0x11c0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303

Memory state around the buggy address:
 ffff88812a6d6380: 00 00 00 00 fc fc fc fc fa fb fb fb fc fc fc fc
 ffff88812a6d6400: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88812a6d6480: 00 00 02 fc fc fc fc fc fc fc fc fc fc fc fc fc
                      ^
 ffff88812a6d6500: fa fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88812a6d6580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: invalid-free in slab_free mm/slub.c:3712 [inline]
BUG: KASAN: invalid-free in __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3728
Free of addr ffff88812a6d648c by task syz.2.17/375

CPU: 1 PID: 375 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 print_address_description+0x71/0x200 mm/kasan/report.c:316
 print_report+0x4a/0x60 mm/kasan/report.c:420
 kasan_report_invalid_free+0xd5/0xf0 mm/kasan/report.c:489
 ____kasan_slab_free+0x14f/0x180 mm/kasan/common.c:-1
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1750 [inline]
 slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
 slab_free mm/slub.c:3712 [inline]
 __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3728
 kfree+0x6f/0xf0 mm/slab_common.c:990
 f_uac2_opts_p_srate_store+0x220/0x2a0 drivers/usb/gadget/function/f_uac2.c:2078
 flush_write_buffer fs/configfs/file.c:207 [inline]
 configfs_write_iter+0x323/0x410 fs/configfs/file.c:229
 call_write_iter include/linux/fs.h:2282 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5ef/0xd00 fs/read_write.c:584
 ksys_write+0x14a/0x260 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 x64_sys_call+0x27b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fc19699e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc317a6d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fc196c25fa0 RCX: 00007fc19699e0d9
RDX: 0000000000000101 RSI: 0000200000000d40 RDI: 0000000000000003
RBP: 00007fc196a35024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc196c25fac R14: 00007fc196c25fa0 R15: 00007fc196c25fa0
 </TASK>

Allocated by task 375:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
 ____kasan_kmalloc mm/kasan/common.c:380 [inline]
 __kasan_kmalloc+0x95/0xb0 mm/kasan/common.c:389
 kasan_kmalloc include/linux/kasan.h:212 [inline]
 __do_kmalloc_node mm/slab_common.c:938 [inline]
 __kmalloc_node_track_caller+0xb1/0x1e0 mm/slab_common.c:958
 kstrdup+0x3b/0x80 mm/util.c:66
 f_uac2_opts_p_srate_store+0x11a/0x2a0 drivers/usb/gadget/function/f_uac2.c:2078
 flush_write_buffer fs/configfs/file.c:207 [inline]
 configfs_write_iter+0x323/0x410 fs/configfs/file.c:229
 call_write_iter include/linux/fs.h:2282 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5ef/0xd00 fs/read_write.c:584
 ksys_write+0x14a/0x260 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 x64_sys_call+0x27b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff88812a6d6480
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 12 bytes inside of
 32-byte region [ffff88812a6d6480, ffff88812a6d64a0)

The buggy address belongs to the physical page:
page:ffffea0004a9b580 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12a6d6
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 0000000000000000 dead000000000122 ffff888100042600
raw: 0000000000000000 0000000080400040 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 371, tgid 371 (syz-executor), ts 31666588950, free_ts 31105173445
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f5/0x210 mm/page_alloc.c:2672
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2679
 get_page_from_freelist+0x2ca9/0x2d20 mm/page_alloc.c:4586
 __alloc_pages+0x1fa/0x610 mm/page_alloc.c:5930
 alloc_slab_page+0x6e/0xf0 include/linux/gfp.h:-1
 allocate_slab mm/slub.c:1967 [inline]
 new_slab+0x98/0x3e0 mm/slub.c:2020
 ___slab_alloc+0x70f/0xb70 mm/slub.c:3177
 __slab_alloc+0x5e/0xa0 mm/slub.c:3263
 slab_alloc_node mm/slub.c:3348 [inline]
 __kmem_cache_alloc_node+0x204/0x2d0 mm/slub.c:3423
 kmalloc_trace+0x29/0xb0 mm/slab_common.c:1028
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 ref_tracker_alloc+0x16b/0x4a0 lib/ref_tracker.c:85
 __netdev_tracker_alloc include/linux/netdevice.h:4085 [inline]
 netdev_tracker_alloc include/linux/netdevice.h:4097 [inline]
 fib6_nh_init+0x913/0x2070 net/ipv6/route.c:3667
 ip6_route_info_create+0xa32/0x14d0 net/ipv6/route.c:3848
 ip6_route_add+0x27/0x130 net/ipv6/route.c:3892
 addrconf_prefix_route net/ipv6/addrconf.c:2466 [inline]
 fixup_permanent_addr net/ipv6/addrconf.c:3569 [inline]
 addrconf_permanent_addr+0x635/0x940 net/ipv6/addrconf.c:3593
 addrconf_notify+0x7ca/0xe30 net/ipv6/addrconf.c:3665
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1580 [inline]
 free_pcp_prepare mm/page_alloc.c:1654 [inline]
 free_unref_page_prepare+0x80c/0x820 mm/page_alloc.c:3621
 free_unref_page+0x93/0x530 mm/page_alloc.c:3719
 free_the_page mm/page_alloc.c:863 [inline]
 __free_pages+0x67/0x100 mm/page_alloc.c:6020
 __vunmap+0xa3c/0xc00 mm/vmalloc.c:2739
 __vfree mm/vmalloc.c:2788 [inline]
 vfree+0x61/0x90 mm/vmalloc.c:2819
 kcov_put kernel/kcov.c:437 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:533
 __fput+0x1fd/0x8f0 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1e1/0x250 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0xaf2/0x2850 kernel/exit.c:887
 do_group_exit+0x21b/0x2e0 kernel/exit.c:1030
 get_signal+0x167c/0x1700 kernel/signal.c:2895
 arch_do_signal_or_restart+0xd1/0x11c0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303

Memory state around the buggy address:
 ffff88812a6d6380: 00 00 00 00 fc fc fc fc fa fb fb fb fc fc fc fc
 ffff88812a6d6400: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88812a6d6480: 00 00 02 fc fc fc fc fc fc fc fc fc fc fc fc fc
                      ^
 ffff88812a6d6500: fa fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88812a6d6580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================