Extracting prog: 1m12.887879146s
Minimizing prog: 20m34.611082688s
Simplifying prog options: 1m17.921865008s
Extracting C: 21.762875899s
Simplifying C: 2m46.21458095s


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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program crashed: KASAN: slab-use-after-free Read in seq_printf
single: successfully extracted reproducer
found reproducer with 12 syscalls
minimizing guilty program
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
socket$nl_route(0x10, 0x3, 0x0)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
sendfile(0xffffffffffffffff, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r3, 0xffffffffffffffff, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r3 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r3, r2, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
write$binfmt_format(0xffffffffffffffff, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r3 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r3, r2, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r1, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r3 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r3, r2, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f00000001c0)='00:03\n', 0x6)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r0, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r2 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r2, r1, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffffff, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='00:03\n', 0x6)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r1, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r3 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r3, r2, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, 0x0, &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', 0x0, 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, 0x0, 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0), 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', 0x0, 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program did not crash
extracting C reproducer
testing compiled C 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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
program did not crash
simplifying guilty program options
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program crashed: KASAN: slab-use-after-free Read in seq_printf
extracting C reproducer
testing compiled C program (duration=30s, {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: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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
program crashed: KASAN: slab-use-after-free Read in seq_printf
simplifying C reproducer
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
program crashed: KASAN: slab-use-after-free Read in seq_printf
testing compiled C program (duration=30s, {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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
program crashed: KASAN: slab-use-after-free Read in seq_printf
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
program crashed: KASAN: slab-use-after-free Read in seq_printf
testing compiled C program (duration=30s, {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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
program crashed: KASAN: slab-use-after-free Read in seq_printf
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
program crashed: KASAN: slab-use-after-free Read in seq_printf
testing program (duration=30s, {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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program crashed: KASAN: slab-use-after-free Read in seq_printf
validation run: crashed=true
testing program (duration=30s, {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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program crashed: KASAN: slab-use-after-free Read in seq_printf
validation run: crashed=true
testing program (duration=30s, {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}}): mkdirat-mount-openat$dir-openat-write-openat-write$binfmt_format-mkdirat-mount-openat-socket$nl_route-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x33)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pnp/drivers/serial\x00', 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000140)='unbind\x00', 0x1, 0x0)
write(r1, &(0x7f00000001c0)='00:03\n', 0x6)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/class/tty/ttyS0/console\x00', 0x2, 0x0)
write$binfmt_format(r2, &(0x7f0000000080)='1\x00', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./myproc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./myproc\x00', &(0x7f0000000200)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./myproc/interrupts\x00', 0x0, 0x0)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendfile(r4, r3, 0x0, 0x7ff)

program crashed: KASAN: slab-use-after-free Read in seq_printf
validation run: crashed=true
reproducing took 28m8.441151692s
repro crashed as (corrupted=false):
printk: legacy console [ttyS0] disabled
printk: legacy console [ttyS0] enabled
==================================================================
BUG: KASAN: slab-use-after-free in string_nocheck lib/vsprintf.c:646 [inline]
BUG: KASAN: slab-use-after-free in string+0x20f/0x2b0 lib/vsprintf.c:728
Read of size 1 at addr ffff888100ec2400 by task syz.2.17/383

CPU: 1 UID: 0 PID: 383 Comm: syz.2.17 Not tainted syzkaller #0 60889c1c5e6bdc1f3cb1b6a230ba908545dccc71
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 print_address_description+0x71/0x210 mm/kasan/report.c:377
 print_report+0x4a/0x70 mm/kasan/report.c:481
 kasan_report+0x162/0x1a0 mm/kasan/report.c:594
 __asan_report_load1_noabort+0x18/0x20 mm/kasan/report_generic.c:378
 string_nocheck lib/vsprintf.c:646 [inline]
 string+0x20f/0x2b0 lib/vsprintf.c:728
 vsnprintf+0xe65/0x1ad0 lib/vsprintf.c:2803
 seq_vprintf fs/seq_file.c:391 [inline]
 seq_printf+0x189/0x290 fs/seq_file.c:406
 show_interrupts+0x6d2/0x7f0 kernel/irq/proc.c:524
 seq_read_iter+0xa7d/0xf30 fs/seq_file.c:272
 proc_reg_read_iter+0x1ea/0x2c0 fs/proc/inode.c:299
 copy_splice_read+0x658/0xca0 fs/splice.c:365
 do_splice_read fs/splice.c:985 [inline]
 splice_direct_to_actor+0x40e/0xbf0 fs/splice.c:1089
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0x196/0x290 fs/splice.c:1233
 do_sendfile+0x511/0xed0 fs/read_write.c:1400
 __do_sys_sendfile64 fs/read_write.c:1467 [inline]
 __se_sys_sendfile64 fs/read_write.c:1453 [inline]
 __x64_sys_sendfile64+0x19d/0x200 fs/read_write.c:1453
 x64_sys_call+0xa26/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:41
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f0b7639e199
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:00007ffc72871f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f0b76625fa0 RCX: 00007f0b7639e199
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000007
RBP: 00007f0b764350b8 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000007ff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0b76625fac R14: 00007f0b76625fa0 R15: 00007f0b76625fa0
 </TASK>

Allocated by task 1:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_alloc_info+0x3a/0x50 mm/kasan/generic.c:565
 poison_kmalloc_redzone mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x96/0xb0 mm/kasan/common.c:396
 kasan_kmalloc include/linux/kasan.h:261 [inline]
 __do_kmalloc_node mm/slub.c:4395 [inline]
 __kmalloc_node_track_caller_noprof+0x24e/0x4f0 mm/slub.c:4414
 kvasprintf+0xf1/0x260 lib/kasprintf.c:25
 kasprintf+0xe3/0x140 lib/kasprintf.c:59
 serial_core_add_one_port drivers/tty/serial/serial_core.c:3171 [inline]
 serial_core_register_port+0x83b/0x23c0 drivers/tty/serial/serial_core.c:3414
 serial_ctrl_register_port+0x21/0x30 drivers/tty/serial/serial_ctrl.c:41
 uart_add_one_port+0x21/0x30 drivers/tty/serial/serial_port.c:143
 serial8250_register_8250_port+0x17ab/0x21d0 drivers/tty/serial/8250/8250_core.c:823
 serial_pnp_probe+0x54b/0x750 drivers/tty/serial/8250/8250_pnp.c:490
 pnp_device_probe+0x316/0x4e0 drivers/pnp/driver.c:111
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2e1/0x8b0 drivers/base/dd.c:657
 __driver_probe_device+0x193/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __driver_attach+0x422/0x5e0 drivers/base/dd.c:1215
 bus_for_each_dev+0x246/0x2d0 drivers/base/bus.c:370
 driver_attach+0x46/0x50 drivers/base/dd.c:1233
 bus_add_driver+0x393/0x730 drivers/base/bus.c:675
 driver_register+0x2b7/0x3c0 drivers/base/driver.c:246
 pnp_register_driver+0x81/0x90 drivers/pnp/driver.c:280
 serial8250_pnp_init+0x19/0x20 drivers/tty/serial/8250/8250_pnp.c:540
 serial8250_init+0xcc/0x1d0 drivers/tty/serial/8250/8250_platform.c:324
 do_one_initcall+0x1e8/0x6a0 init/main.c:1406
 do_initcall_level+0x174/0x2e5 init/main.c:1468
 do_initcalls+0x7e/0x160 init/main.c:1484
 do_basic_setup+0x95/0xb0 init/main.c:1503
 kernel_init_freeable+0x2b1/0x400 init/main.c:1717
 kernel_init+0x21/0x1e0 init/main.c:1606
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Freed by task 383:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_free_info+0x44/0x50 mm/kasan/generic.c:579
 poison_slab_object mm/kasan/common.c:249 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:266
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2445 [inline]
 slab_free mm/slub.c:4714 [inline]
 kfree+0x158/0x440 mm/slub.c:4875
 serial_core_remove_one_port drivers/tty/serial/serial_core.c:3273 [inline]
 serial_core_unregister_port+0x469/0xa50 drivers/tty/serial/serial_core.c:3449
 serial_ctrl_unregister_port+0x21/0x30 drivers/tty/serial/serial_ctrl.c:46
 uart_remove_one_port+0x21/0x30 drivers/tty/serial/serial_port.c:149
 serial8250_unregister_port+0x1cc/0x6b0 drivers/tty/serial/8250/8250_core.c:886
 serial_pnp_remove+0x5d/0xa0 drivers/tty/serial/8250/8250_pnp.c:507
 pnp_device_remove+0x8d/0x270 drivers/pnp/driver.c:133
 device_remove drivers/base/dd.c:567 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x4ad/0x830 drivers/base/dd.c:1295
 device_driver_detach+0x3f/0x50 drivers/base/dd.c:1331
 unbind_store+0x1ab/0x1f0 drivers/base/bus.c:244
 drv_attr_store+0x91/0xb0 drivers/base/bus.c:125
 sysfs_kf_write+0x13e/0x160 fs/sysfs/file.c:136
 kernfs_fop_write_iter+0x319/0x510 fs/kernfs/file.c:352
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0x762/0xfd0 fs/read_write.c:684
 ksys_write+0x145/0x260 fs/read_write.c:737
 __do_sys_write fs/read_write.c:749 [inline]
 __se_sys_write fs/read_write.c:746 [inline]
 __x64_sys_write+0x7f/0x90 fs/read_write.c:746
 x64_sys_call+0x271c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

The buggy address belongs to the object at ffff888100ec2400
 which belongs to the cache kmalloc-8 of size 8
The buggy address is located 0 bytes inside of
 freed 8-byte region [ffff888100ec2400, ffff888100ec2408)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100ec2
flags: 0x4000000000000000(zone=1)
page_type: f5(slab)
raw: 4000000000000000 ffff888100041500 ffffea000416ab40 dead000000000002
raw: 0000000000000000 0000000080800080 00000001f5000000 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 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1, tgid 1 (swapper/0), ts 2722944139, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook+0x37d/0x3b0 mm/page_alloc.c:1864
 prep_new_page+0x2d/0x180 mm/page_alloc.c:1872
 get_page_from_freelist+0x4aea/0x4ba0 mm/page_alloc.c:3949
 __alloc_pages_noprof+0x35a/0x7e0 mm/page_alloc.c:5316
 alloc_slab_page+0x6b/0x1e0 mm/slub.c:-1
 allocate_slab+0x69/0x430 mm/slub.c:2687
 new_slab mm/slub.c:2741 [inline]
 ___slab_alloc+0x591/0x8c0 mm/slub.c:3934
 __slab_alloc mm/slub.c:4025 [inline]
 __slab_alloc_node mm/slub.c:4078 [inline]
 slab_alloc_node mm/slub.c:4239 [inline]
 __do_kmalloc_node mm/slub.c:4394 [inline]
 __kmalloc_noprof+0x2fc/0x510 mm/slub.c:4407
 kmalloc_noprof include/linux/slab.h:886 [inline]
 kzalloc_noprof include/linux/slab.h:1117 [inline]
 acpi_ns_internalize_name+0x2df/0x490 drivers/acpi/acpica/nsutils.c:331
 acpi_ns_get_node_unlocked drivers/acpi/acpica/nsutils.c:666 [inline]
 acpi_ns_get_node+0x1ab/0x360 drivers/acpi/acpica/nsutils.c:726
 acpi_get_handle+0x188/0x290 drivers/acpi/acpica/nsxfname.c:98
 acpi_has_method+0x8d/0xe0 drivers/acpi/utils.c:673
 acpi_is_ioapic drivers/acpi/ioapic.c:75 [inline]
 handle_ioapic_add+0xb3/0xa60 drivers/acpi/ioapic.c:107
 acpi_ns_walk_namespace+0x25b/0x690 drivers/acpi/acpica/nswalk.c:-1
 acpi_walk_namespace+0xfa/0x140 drivers/acpi/acpica/nsxfeval.c:606
 acpi_ioapic_add+0x9a/0x120 drivers/acpi/ioapic.c:206
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888100ec2300: fa fc fc fc 06 fc fc fc 05 fc fc fc 06 fc fc fc
 ffff888100ec2380: 07 fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc
>ffff888100ec2400: fa fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc
                   ^
 ffff888100ec2480: 00 fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc
 ffff888100ec2500: fa fc fc fc fa fc fc fc fa fc fc fc 06 fc fc fc
==================================================================

final repro crashed as (corrupted=false):
printk: legacy console [ttyS0] disabled
printk: legacy console [ttyS0] enabled
==================================================================
BUG: KASAN: slab-use-after-free in string_nocheck lib/vsprintf.c:646 [inline]
BUG: KASAN: slab-use-after-free in string+0x20f/0x2b0 lib/vsprintf.c:728
Read of size 1 at addr ffff888100ec2400 by task syz.2.17/383

CPU: 1 UID: 0 PID: 383 Comm: syz.2.17 Not tainted syzkaller #0 60889c1c5e6bdc1f3cb1b6a230ba908545dccc71
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 print_address_description+0x71/0x210 mm/kasan/report.c:377
 print_report+0x4a/0x70 mm/kasan/report.c:481
 kasan_report+0x162/0x1a0 mm/kasan/report.c:594
 __asan_report_load1_noabort+0x18/0x20 mm/kasan/report_generic.c:378
 string_nocheck lib/vsprintf.c:646 [inline]
 string+0x20f/0x2b0 lib/vsprintf.c:728
 vsnprintf+0xe65/0x1ad0 lib/vsprintf.c:2803
 seq_vprintf fs/seq_file.c:391 [inline]
 seq_printf+0x189/0x290 fs/seq_file.c:406
 show_interrupts+0x6d2/0x7f0 kernel/irq/proc.c:524
 seq_read_iter+0xa7d/0xf30 fs/seq_file.c:272
 proc_reg_read_iter+0x1ea/0x2c0 fs/proc/inode.c:299
 copy_splice_read+0x658/0xca0 fs/splice.c:365
 do_splice_read fs/splice.c:985 [inline]
 splice_direct_to_actor+0x40e/0xbf0 fs/splice.c:1089
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0x196/0x290 fs/splice.c:1233
 do_sendfile+0x511/0xed0 fs/read_write.c:1400
 __do_sys_sendfile64 fs/read_write.c:1467 [inline]
 __se_sys_sendfile64 fs/read_write.c:1453 [inline]
 __x64_sys_sendfile64+0x19d/0x200 fs/read_write.c:1453
 x64_sys_call+0xa26/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:41
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f0b7639e199
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:00007ffc72871f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f0b76625fa0 RCX: 00007f0b7639e199
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000007
RBP: 00007f0b764350b8 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000007ff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0b76625fac R14: 00007f0b76625fa0 R15: 00007f0b76625fa0
 </TASK>

Allocated by task 1:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_alloc_info+0x3a/0x50 mm/kasan/generic.c:565
 poison_kmalloc_redzone mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x96/0xb0 mm/kasan/common.c:396
 kasan_kmalloc include/linux/kasan.h:261 [inline]
 __do_kmalloc_node mm/slub.c:4395 [inline]
 __kmalloc_node_track_caller_noprof+0x24e/0x4f0 mm/slub.c:4414
 kvasprintf+0xf1/0x260 lib/kasprintf.c:25
 kasprintf+0xe3/0x140 lib/kasprintf.c:59
 serial_core_add_one_port drivers/tty/serial/serial_core.c:3171 [inline]
 serial_core_register_port+0x83b/0x23c0 drivers/tty/serial/serial_core.c:3414
 serial_ctrl_register_port+0x21/0x30 drivers/tty/serial/serial_ctrl.c:41
 uart_add_one_port+0x21/0x30 drivers/tty/serial/serial_port.c:143
 serial8250_register_8250_port+0x17ab/0x21d0 drivers/tty/serial/8250/8250_core.c:823
 serial_pnp_probe+0x54b/0x750 drivers/tty/serial/8250/8250_pnp.c:490
 pnp_device_probe+0x316/0x4e0 drivers/pnp/driver.c:111
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2e1/0x8b0 drivers/base/dd.c:657
 __driver_probe_device+0x193/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __driver_attach+0x422/0x5e0 drivers/base/dd.c:1215
 bus_for_each_dev+0x246/0x2d0 drivers/base/bus.c:370
 driver_attach+0x46/0x50 drivers/base/dd.c:1233
 bus_add_driver+0x393/0x730 drivers/base/bus.c:675
 driver_register+0x2b7/0x3c0 drivers/base/driver.c:246
 pnp_register_driver+0x81/0x90 drivers/pnp/driver.c:280
 serial8250_pnp_init+0x19/0x20 drivers/tty/serial/8250/8250_pnp.c:540
 serial8250_init+0xcc/0x1d0 drivers/tty/serial/8250/8250_platform.c:324
 do_one_initcall+0x1e8/0x6a0 init/main.c:1406
 do_initcall_level+0x174/0x2e5 init/main.c:1468
 do_initcalls+0x7e/0x160 init/main.c:1484
 do_basic_setup+0x95/0xb0 init/main.c:1503
 kernel_init_freeable+0x2b1/0x400 init/main.c:1717
 kernel_init+0x21/0x1e0 init/main.c:1606
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Freed by task 383:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_free_info+0x44/0x50 mm/kasan/generic.c:579
 poison_slab_object mm/kasan/common.c:249 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:266
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2445 [inline]
 slab_free mm/slub.c:4714 [inline]
 kfree+0x158/0x440 mm/slub.c:4875
 serial_core_remove_one_port drivers/tty/serial/serial_core.c:3273 [inline]
 serial_core_unregister_port+0x469/0xa50 drivers/tty/serial/serial_core.c:3449
 serial_ctrl_unregister_port+0x21/0x30 drivers/tty/serial/serial_ctrl.c:46
 uart_remove_one_port+0x21/0x30 drivers/tty/serial/serial_port.c:149
 serial8250_unregister_port+0x1cc/0x6b0 drivers/tty/serial/8250/8250_core.c:886
 serial_pnp_remove+0x5d/0xa0 drivers/tty/serial/8250/8250_pnp.c:507
 pnp_device_remove+0x8d/0x270 drivers/pnp/driver.c:133
 device_remove drivers/base/dd.c:567 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x4ad/0x830 drivers/base/dd.c:1295
 device_driver_detach+0x3f/0x50 drivers/base/dd.c:1331
 unbind_store+0x1ab/0x1f0 drivers/base/bus.c:244
 drv_attr_store+0x91/0xb0 drivers/base/bus.c:125
 sysfs_kf_write+0x13e/0x160 fs/sysfs/file.c:136
 kernfs_fop_write_iter+0x319/0x510 fs/kernfs/file.c:352
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0x762/0xfd0 fs/read_write.c:684
 ksys_write+0x145/0x260 fs/read_write.c:737
 __do_sys_write fs/read_write.c:749 [inline]
 __se_sys_write fs/read_write.c:746 [inline]
 __x64_sys_write+0x7f/0x90 fs/read_write.c:746
 x64_sys_call+0x271c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

The buggy address belongs to the object at ffff888100ec2400
 which belongs to the cache kmalloc-8 of size 8
The buggy address is located 0 bytes inside of
 freed 8-byte region [ffff888100ec2400, ffff888100ec2408)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100ec2
flags: 0x4000000000000000(zone=1)
page_type: f5(slab)
raw: 4000000000000000 ffff888100041500 ffffea000416ab40 dead000000000002
raw: 0000000000000000 0000000080800080 00000001f5000000 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 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1, tgid 1 (swapper/0), ts 2722944139, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook+0x37d/0x3b0 mm/page_alloc.c:1864
 prep_new_page+0x2d/0x180 mm/page_alloc.c:1872
 get_page_from_freelist+0x4aea/0x4ba0 mm/page_alloc.c:3949
 __alloc_pages_noprof+0x35a/0x7e0 mm/page_alloc.c:5316
 alloc_slab_page+0x6b/0x1e0 mm/slub.c:-1
 allocate_slab+0x69/0x430 mm/slub.c:2687
 new_slab mm/slub.c:2741 [inline]
 ___slab_alloc+0x591/0x8c0 mm/slub.c:3934
 __slab_alloc mm/slub.c:4025 [inline]
 __slab_alloc_node mm/slub.c:4078 [inline]
 slab_alloc_node mm/slub.c:4239 [inline]
 __do_kmalloc_node mm/slub.c:4394 [inline]
 __kmalloc_noprof+0x2fc/0x510 mm/slub.c:4407
 kmalloc_noprof include/linux/slab.h:886 [inline]
 kzalloc_noprof include/linux/slab.h:1117 [inline]
 acpi_ns_internalize_name+0x2df/0x490 drivers/acpi/acpica/nsutils.c:331
 acpi_ns_get_node_unlocked drivers/acpi/acpica/nsutils.c:666 [inline]
 acpi_ns_get_node+0x1ab/0x360 drivers/acpi/acpica/nsutils.c:726
 acpi_get_handle+0x188/0x290 drivers/acpi/acpica/nsxfname.c:98
 acpi_has_method+0x8d/0xe0 drivers/acpi/utils.c:673
 acpi_is_ioapic drivers/acpi/ioapic.c:75 [inline]
 handle_ioapic_add+0xb3/0xa60 drivers/acpi/ioapic.c:107
 acpi_ns_walk_namespace+0x25b/0x690 drivers/acpi/acpica/nswalk.c:-1
 acpi_walk_namespace+0xfa/0x140 drivers/acpi/acpica/nsxfeval.c:606
 acpi_ioapic_add+0x9a/0x120 drivers/acpi/ioapic.c:206
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888100ec2300: fa fc fc fc 06 fc fc fc 05 fc fc fc 06 fc fc fc
 ffff888100ec2380: 07 fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc
>ffff888100ec2400: fa fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc
                   ^
 ffff888100ec2480: 00 fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc
 ffff888100ec2500: fa fc fc fc fa fc fc fc fa fc fc fc 06 fc fc fc
==================================================================