Extracting prog: 36.956451889s
Minimizing prog: 22m52.224174963s
Simplifying prog options: 0s
Extracting C: 1m53.940518653s
Simplifying C: 24m30.274541638s


extracting reproducer from 31 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
detailed listing:
executing program 0:
mmap$auto(0x0, 0x20009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/devices/virtual/workqueue/nf_ft_offload_stats/affinity_scope\x00', 0x8000, 0x0)
read$auto(r0, 0x0, 0x20)
close_range$auto(0x0, 0xfffffffffffff000, 0x4000000000002)
socket(0x2, 0x801, 0x106)
socketpair$auto(0x1e, 0x5, 0x8000000000000000, 0x0)
r1 = openat$auto_mtd_fops_mtdchar(0xffffffffffffff9c, &(0x7f0000000140)='/dev/mtd0ro\x00', 0x0, 0x0)
ioctl$auto_BLKPG2(r1, 0x1269, 0x0) (fail_nth: 8)

program crashed: WARNING in release_mtd_partition
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=45.281149171s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar
detailed listing:
executing program 0:
mmap$auto(0x0, 0x20009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/devices/virtual/workqueue/nf_ft_offload_stats/affinity_scope\x00', 0x8000, 0x0)
read$auto(r0, 0x0, 0x20)
close_range$auto(0x0, 0xfffffffffffff000, 0x4000000000002)
socket(0x2, 0x801, 0x106)
socketpair$auto(0x1e, 0x5, 0x8000000000000000, 0x0)
openat$auto_mtd_fops_mtdchar(0xffffffffffffff9c, &(0x7f0000000140)='/dev/mtd0ro\x00', 0x0, 0x0)

program did not crash
testing program (duration=45.281149171s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-ioctl$auto_BLKPG2
detailed listing:
executing program 0:
mmap$auto(0x0, 0x20009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/devices/virtual/workqueue/nf_ft_offload_stats/affinity_scope\x00', 0x8000, 0x0)
read$auto(r0, 0x0, 0x20)
close_range$auto(0x0, 0xfffffffffffff000, 0x4000000000002)
socket(0x2, 0x801, 0x106)
socketpair$auto(0x1e, 0x5, 0x8000000000000000, 0x0)
ioctl$auto_BLKPG2(0xffffffffffffffff, 0x1269, 0x0) (fail_nth: 8)

program did not crash
testing program (duration=45.281149171s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
detailed listing:
executing program 0:
mmap$auto(0x0, 0x20009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/devices/virtual/workqueue/nf_ft_offload_stats/affinity_scope\x00', 0x8000, 0x0)
read$auto(r0, 0x0, 0x20)
close_range$auto(0x0, 0xfffffffffffff000, 0x4000000000002)
socket(0x2, 0x801, 0x106)
r1 = openat$auto_mtd_fops_mtdchar(0xffffffffffffff9c, &(0x7f0000000140)='/dev/mtd0ro\x00', 0x0, 0x0)
ioctl$auto_BLKPG2(r1, 0x1269, 0x0) (fail_nth: 8)

program did not crash
testing program (duration=45.281149171s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
detailed listing:
executing program 0:
mmap$auto(0x0, 0x20009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/devices/virtual/workqueue/nf_ft_offload_stats/affinity_scope\x00', 0x8000, 0x0)
read$auto(r0, 0x0, 0x20)
close_range$auto(0x0, 0xfffffffffffff000, 0x4000000000002)
socketpair$auto(0x1e, 0x5, 0x8000000000000000, 0x0)
r1 = openat$auto_mtd_fops_mtdchar(0xffffffffffffff9c, &(0x7f0000000140)='/dev/mtd0ro\x00', 0x0, 0x0)
ioctl$auto_BLKPG2(r1, 0x1269, 0x0) (fail_nth: 8)

program did not crash
testing program (duration=45.281149171s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
detailed listing:
executing program 0:
mmap$auto(0x0, 0x20009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/devices/virtual/workqueue/nf_ft_offload_stats/affinity_scope\x00', 0x8000, 0x0)
read$auto(r0, 0x0, 0x20)
socket(0x2, 0x801, 0x106)
socketpair$auto(0x1e, 0x5, 0x8000000000000000, 0x0)
r1 = openat$auto_mtd_fops_mtdchar(0xffffffffffffff9c, &(0x7f0000000140)='/dev/mtd0ro\x00', 0x0, 0x0)
ioctl$auto_BLKPG2(r1, 0x1269, 0x0) (fail_nth: 8)

program did not crash
testing program (duration=45.281149171s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
detailed listing:
executing program 0:
mmap$auto(0x0, 0x20009, 0xdf, 0xeb1, 0x401, 0x8000)
openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/devices/virtual/workqueue/nf_ft_offload_stats/affinity_scope\x00', 0x8000, 0x0)
close_range$auto(0x0, 0xfffffffffffff000, 0x4000000000002)
socket(0x2, 0x801, 0x106)
socketpair$auto(0x1e, 0x5, 0x8000000000000000, 0x0)
r0 = openat$auto_mtd_fops_mtdchar(0xffffffffffffff9c, &(0x7f0000000140)='/dev/mtd0ro\x00', 0x0, 0x0)
ioctl$auto_BLKPG2(r0, 0x1269, 0x0) (fail_nth: 8)

program did not crash
testing program (duration=45.281149171s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
detailed listing:
executing program 0:
mmap$auto(0x0, 0x20009, 0xdf, 0xeb1, 0x401, 0x8000)
read$auto(0xffffffffffffffff, 0x0, 0x20)
close_range$auto(0x0, 0xfffffffffffff000, 0x4000000000002)
socket(0x2, 0x801, 0x106)
socketpair$auto(0x1e, 0x5, 0x8000000000000000, 0x0)
r0 = openat$auto_mtd_fops_mtdchar(0xffffffffffffff9c, &(0x7f0000000140)='/dev/mtd0ro\x00', 0x0, 0x0)
ioctl$auto_BLKPG2(r0, 0x1269, 0x0) (fail_nth: 8)

program did not crash
testing program (duration=45.281149171s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
detailed listing:
executing program 0:
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/devices/virtual/workqueue/nf_ft_offload_stats/affinity_scope\x00', 0x8000, 0x0)
read$auto(r0, 0x0, 0x20)
close_range$auto(0x0, 0xfffffffffffff000, 0x4000000000002)
socket(0x2, 0x801, 0x106)
socketpair$auto(0x1e, 0x5, 0x8000000000000000, 0x0)
r1 = openat$auto_mtd_fops_mtdchar(0xffffffffffffff9c, &(0x7f0000000140)='/dev/mtd0ro\x00', 0x0, 0x0)
ioctl$auto_BLKPG2(r1, 0x1269, 0x0) (fail_nth: 8)

program did not crash
testing program (duration=45.281149171s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
detailed listing:
executing program 0:
mmap$auto(0x0, 0x20009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/devices/virtual/workqueue/nf_ft_offload_stats/affinity_scope\x00', 0x8000, 0x0)
read$auto(r0, 0x0, 0x20)
close_range$auto(0x0, 0xfffffffffffff000, 0x4000000000002)
socket(0x2, 0x801, 0x106)
socketpair$auto(0x1e, 0x5, 0x8000000000000000, 0x0)
r1 = openat$auto_mtd_fops_mtdchar(0xffffffffffffff9c, &(0x7f0000000140)='/dev/mtd0ro\x00', 0x0, 0x0)
ioctl$auto_BLKPG2(r1, 0x1269, 0x0)

program did not crash
testing program (duration=45.281149171s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
detailed listing:
executing program 0:
mmap$auto(0x0, 0x20009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, 0x0, 0x8000, 0x0)
read$auto(r0, 0x0, 0x20)
close_range$auto(0x0, 0xfffffffffffff000, 0x4000000000002)
socket(0x2, 0x801, 0x106)
socketpair$auto(0x1e, 0x5, 0x8000000000000000, 0x0)
r1 = openat$auto_mtd_fops_mtdchar(0xffffffffffffff9c, &(0x7f0000000140)='/dev/mtd0ro\x00', 0x0, 0x0)
ioctl$auto_BLKPG2(r1, 0x1269, 0x0) (fail_nth: 8)

program did not crash
testing program (duration=45.281149171s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
detailed listing:
executing program 0:
mmap$auto(0x0, 0x20009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/devices/virtual/workqueue/nf_ft_offload_stats/affinity_scope\x00', 0x8000, 0x0)
read$auto(r0, 0x0, 0x20)
close_range$auto(0x0, 0xfffffffffffff000, 0x4000000000002)
socket(0x2, 0x801, 0x106)
socketpair$auto(0x1e, 0x5, 0x8000000000000000, 0x0)
r1 = openat$auto_mtd_fops_mtdchar(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$auto_BLKPG2(r1, 0x1269, 0x0) (fail_nth: 8)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.281149171s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
simplifying C reproducer
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program did not crash
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program did not crash
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program did not crash
testing compiled C program (duration=45.281149171s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-read$auto-close_range$auto-socket-socketpair$auto-openat$auto_mtd_fops_mtdchar-ioctl$auto_BLKPG2
program crashed: WARNING in release_mtd_partition
reproducing took 49m53.395708854s
repro crashed as (corrupted=false):
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f551d418959
RDX: 0000000000000000 RSI: 0000000000001269 RDI: 0000000000000003
RBP: 00007ffd42a61210 R08: 00007ffd42a60f67 R09: 00007f551d495520
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f551d46bff1
R13: 00007f551d4685c6 R14: 00007f551d46f13c R15: 00007f551d46852e
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5828 at drivers/mtd/mtdpart.c:37 release_mtd_partition+0x71/0x90 drivers/mtd/mtdpart.c:37
Modules linked in:
CPU: 0 UID: 0 PID: 5828 Comm: syz-executor312 Not tainted 6.16.0-rc2-syzkaller-00318-g739a6c93cc75 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:release_mtd_partition+0x71/0x90 drivers/mtd/mtdpart.c:37
Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 1e 48 8b 7b 38 e8 0f a4 ac fb 48 89 df 5b 5d e9 05 a4 ac fb e8 f0 ca 51 fb 90 <0f> 0b 90 eb c2 e8 55 aa b7 fb eb db 48 89 ef e8 4b aa b7 fb eb a5
RSP: 0018:ffffc9000403f840 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88802aaaf000 RCX: ffffffff8b776890
RDX: ffff888028990000 RSI: ffffffff8669bdc0 RDI: ffff88802aaaf000
RBP: ffff88802aaaf648 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888022aa6be0 R15: 0000000000000000
FS:  0000555557c483c0(0000) GS:ffff888124761000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f5b58bb000 CR3: 0000000073c58000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 mtd_release+0xa0/0xd0 drivers/mtd/mtdcore.c:101
 device_release+0xa1/0x240 drivers/base/core.c:2568
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1e7/0x5a0 lib/kobject.c:737
 put_device+0x1f/0x30 drivers/base/core.c:3800
 add_mtd_device+0xbc7/0x1720 drivers/mtd/mtdcore.c:752
 mtd_add_partition+0x30c/0x670 drivers/mtd/mtdpart.c:279
 mtdchar_blkpg_ioctl+0x20b/0x250 drivers/mtd/mtdchar.c:562
 mtdchar_ioctl+0xbc4/0x2090 drivers/mtd/mtdchar.c:1216
 mtdchar_unlocked_ioctl+0xb0/0xf0 drivers/mtd/mtdchar.c:1239
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f551d418959
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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd42a611c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f551d418959
RDX: 0000000000000000 RSI: 0000000000001269 RDI: 0000000000000003
RBP: 00007ffd42a61210 R08: 00007ffd42a60f67 R09: 00007f551d495520
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f551d46bff1
R13: 00007f551d4685c6 R14: 00007f551d46f13c R15: 00007f551d46852e
 </TASK>

final repro crashed as (corrupted=false):
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f551d418959
RDX: 0000000000000000 RSI: 0000000000001269 RDI: 0000000000000003
RBP: 00007ffd42a61210 R08: 00007ffd42a60f67 R09: 00007f551d495520
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f551d46bff1
R13: 00007f551d4685c6 R14: 00007f551d46f13c R15: 00007f551d46852e
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5828 at drivers/mtd/mtdpart.c:37 release_mtd_partition+0x71/0x90 drivers/mtd/mtdpart.c:37
Modules linked in:
CPU: 0 UID: 0 PID: 5828 Comm: syz-executor312 Not tainted 6.16.0-rc2-syzkaller-00318-g739a6c93cc75 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:release_mtd_partition+0x71/0x90 drivers/mtd/mtdpart.c:37
Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 1e 48 8b 7b 38 e8 0f a4 ac fb 48 89 df 5b 5d e9 05 a4 ac fb e8 f0 ca 51 fb 90 <0f> 0b 90 eb c2 e8 55 aa b7 fb eb db 48 89 ef e8 4b aa b7 fb eb a5
RSP: 0018:ffffc9000403f840 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88802aaaf000 RCX: ffffffff8b776890
RDX: ffff888028990000 RSI: ffffffff8669bdc0 RDI: ffff88802aaaf000
RBP: ffff88802aaaf648 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888022aa6be0 R15: 0000000000000000
FS:  0000555557c483c0(0000) GS:ffff888124761000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f5b58bb000 CR3: 0000000073c58000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 mtd_release+0xa0/0xd0 drivers/mtd/mtdcore.c:101
 device_release+0xa1/0x240 drivers/base/core.c:2568
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1e7/0x5a0 lib/kobject.c:737
 put_device+0x1f/0x30 drivers/base/core.c:3800
 add_mtd_device+0xbc7/0x1720 drivers/mtd/mtdcore.c:752
 mtd_add_partition+0x30c/0x670 drivers/mtd/mtdpart.c:279
 mtdchar_blkpg_ioctl+0x20b/0x250 drivers/mtd/mtdchar.c:562
 mtdchar_ioctl+0xbc4/0x2090 drivers/mtd/mtdchar.c:1216
 mtdchar_unlocked_ioctl+0xb0/0xf0 drivers/mtd/mtdchar.c:1239
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f551d418959
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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd42a611c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f551d418959
RDX: 0000000000000000 RSI: 0000000000001269 RDI: 0000000000000003
RBP: 00007ffd42a61210 R08: 00007ffd42a60f67 R09: 00007f551d495520
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f551d46bff1
R13: 00007f551d4685c6 R14: 00007f551d46f13c R15: 00007f551d46852e
 </TASK>