Extracting prog: 40.119874925s
Minimizing prog: 13m0.399041082s
Simplifying prog options: 0s
Extracting C: 1m6.731235129s
Simplifying C: 26m16.997327881s


extracting reproducer from 24 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-close_range$auto-socket-openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000)
close_range$auto(0x2, 0x8, 0x0)
socket(0x2, 0x3, 0x100)
r0 = openat$auto_proc_pid_maps_operations_internal(0xffffffffffffff9c, &(0x7f0000000200)='/proc/self/maps\x00', 0x40302, 0x0)
ioctl$auto_PROCMAP_QUERY(r0, 0xc0686611, &(0x7f0000000080)={0x101, 0x34, 0x7fff, 0x5, 0x80000000009, 0x1, 0x800, 0x101, 0x5, 0x207f93, 0xfffffffe, 0x7ffffffd, 0x3, 0x7, 0x5})
clone$auto(0x2000020003b4a, 0x6, 0x0, 0x0, 0x103)

program crashed: BUG: Bad rss-counter state
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-close_range$auto-socket-openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY
detailed listing:
executing program 0:
mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000)
close_range$auto(0x2, 0x8, 0x0)
socket(0x2, 0x3, 0x100)
r0 = openat$auto_proc_pid_maps_operations_internal(0xffffffffffffff9c, &(0x7f0000000200)='/proc/self/maps\x00', 0x40302, 0x0)
ioctl$auto_PROCMAP_QUERY(r0, 0xc0686611, &(0x7f0000000080)={0x101, 0x34, 0x7fff, 0x5, 0x80000000009, 0x1, 0x800, 0x101, 0x5, 0x207f93, 0xfffffffe, 0x7ffffffd, 0x3, 0x7, 0x5})

program did not crash
testing program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-close_range$auto-socket-openat$auto_proc_pid_maps_operations_internal-clone$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000)
close_range$auto(0x2, 0x8, 0x0)
socket(0x2, 0x3, 0x100)
openat$auto_proc_pid_maps_operations_internal(0xffffffffffffff9c, &(0x7f0000000200)='/proc/self/maps\x00', 0x40302, 0x0)
clone$auto(0x2000020003b4a, 0x6, 0x0, 0x0, 0x103)

program did not crash
testing program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-close_range$auto-socket-ioctl$auto_PROCMAP_QUERY-clone$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000)
close_range$auto(0x2, 0x8, 0x0)
socket(0x2, 0x3, 0x100)
ioctl$auto_PROCMAP_QUERY(0xffffffffffffffff, 0xc0686611, &(0x7f0000000080)={0x101, 0x34, 0x7fff, 0x5, 0x80000000009, 0x1, 0x800, 0x101, 0x5, 0x207f93, 0xfffffffe, 0x7ffffffd, 0x3, 0x7, 0x5})
clone$auto(0x2000020003b4a, 0x6, 0x0, 0x0, 0x103)

program did not crash
testing program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-close_range$auto-openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000)
close_range$auto(0x2, 0x8, 0x0)
r0 = openat$auto_proc_pid_maps_operations_internal(0xffffffffffffff9c, &(0x7f0000000200)='/proc/self/maps\x00', 0x40302, 0x0)
ioctl$auto_PROCMAP_QUERY(r0, 0xc0686611, &(0x7f0000000080)={0x101, 0x34, 0x7fff, 0x5, 0x80000000009, 0x1, 0x800, 0x101, 0x5, 0x207f93, 0xfffffffe, 0x7ffffffd, 0x3, 0x7, 0x5})
clone$auto(0x2000020003b4a, 0x6, 0x0, 0x0, 0x103)

program crashed: BUG: Bad rss-counter state
testing program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000)
r0 = openat$auto_proc_pid_maps_operations_internal(0xffffffffffffff9c, &(0x7f0000000200)='/proc/self/maps\x00', 0x40302, 0x0)
ioctl$auto_PROCMAP_QUERY(r0, 0xc0686611, &(0x7f0000000080)={0x101, 0x34, 0x7fff, 0x5, 0x80000000009, 0x1, 0x800, 0x101, 0x5, 0x207f93, 0xfffffffe, 0x7ffffffd, 0x3, 0x7, 0x5})
clone$auto(0x2000020003b4a, 0x6, 0x0, 0x0, 0x103)

program crashed: BUG: Bad rss-counter state
testing program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
detailed listing:
executing program 0:
r0 = openat$auto_proc_pid_maps_operations_internal(0xffffffffffffff9c, &(0x7f0000000200)='/proc/self/maps\x00', 0x40302, 0x0)
ioctl$auto_PROCMAP_QUERY(r0, 0xc0686611, &(0x7f0000000080)={0x101, 0x34, 0x7fff, 0x5, 0x80000000009, 0x1, 0x800, 0x101, 0x5, 0x207f93, 0xfffffffe, 0x7ffffffd, 0x3, 0x7, 0x5})
clone$auto(0x2000020003b4a, 0x6, 0x0, 0x0, 0x103)

program crashed: WARNING in __mmdrop
testing program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
detailed listing:
executing program 0:
r0 = openat$auto_proc_pid_maps_operations_internal(0xffffffffffffff9c, 0x0, 0x40302, 0x0)
ioctl$auto_PROCMAP_QUERY(r0, 0xc0686611, &(0x7f0000000080)={0x101, 0x34, 0x7fff, 0x5, 0x80000000009, 0x1, 0x800, 0x101, 0x5, 0x207f93, 0xfffffffe, 0x7ffffffd, 0x3, 0x7, 0x5})
clone$auto(0x2000020003b4a, 0x6, 0x0, 0x0, 0x103)

program did not crash
testing program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
detailed listing:
executing program 0:
r0 = openat$auto_proc_pid_maps_operations_internal(0xffffffffffffff9c, &(0x7f0000000200)='/proc/self/maps\x00', 0x40302, 0x0)
ioctl$auto_PROCMAP_QUERY(r0, 0xc0686611, 0x0)
clone$auto(0x2000020003b4a, 0x6, 0x0, 0x0, 0x103)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: WARNING in __mmdrop
simplifying C reproducer
testing compiled C program (duration=45.004924357s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program did not crash
testing compiled C program (duration=45.004924357s, {Threaded:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program did not crash
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: KASAN: slab-use-after-free Read in futex_hash_put
a never seen crash title: KASAN: slab-use-after-free Read in futex_hash_put, ignore
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: KASAN: slab-use-after-free Read in futex_unqueue
a never seen crash title: KASAN: slab-use-after-free Read in futex_unqueue, ignore
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: KASAN: slab-use-after-free Read in __schedule
a never seen crash title: KASAN: slab-use-after-free Read in __schedule, ignore
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: KASAN: slab-use-after-free Read in __schedule
a never seen crash title: KASAN: slab-use-after-free Read in __schedule, ignore
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: KASAN: slab-use-after-free Read in __schedule
a never seen crash title: KASAN: slab-use-after-free Read in __schedule, ignore
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: WARNING in __mmdrop
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: WARNING in __mmdrop
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: WARNING in __mmdrop
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: WARNING in __mmdrop
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: KASAN: slab-use-after-free Read in __schedule
a never seen crash title: KASAN: slab-use-after-free Read in __schedule, ignore
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: KASAN: slab-use-after-free Read in __schedule
a never seen crash title: KASAN: slab-use-after-free Read in __schedule, ignore
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: KASAN: slab-use-after-free Read in switch_mm_irqs_off
a never seen crash title: KASAN: slab-use-after-free Read in switch_mm_irqs_off, ignore
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: WARNING in __mmdrop
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: WARNING in __mmdrop
testing compiled C program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
program crashed: WARNING in __mmdrop
testing program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
detailed listing:
executing program 0:
r0 = openat$auto_proc_pid_maps_operations_internal(0xffffffffffffff9c, &(0x7f0000000200)='/proc/self/maps\x00', 0x40302, 0x0)
ioctl$auto_PROCMAP_QUERY(r0, 0xc0686611, &(0x7f0000000080)={0x101, 0x34, 0x7fff, 0x5, 0x80000000009, 0x1, 0x800, 0x101, 0x5, 0x207f93, 0xfffffffe, 0x7ffffffd, 0x3, 0x7, 0x5})
clone$auto(0x2000020003b4a, 0x6, 0x0, 0x0, 0x103)

program crashed: WARNING in __mmdrop
validation run: crashed=true
testing program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
detailed listing:
executing program 0:
r0 = openat$auto_proc_pid_maps_operations_internal(0xffffffffffffff9c, &(0x7f0000000200)='/proc/self/maps\x00', 0x40302, 0x0)
ioctl$auto_PROCMAP_QUERY(r0, 0xc0686611, &(0x7f0000000080)={0x101, 0x34, 0x7fff, 0x5, 0x80000000009, 0x1, 0x800, 0x101, 0x5, 0x207f93, 0xfffffffe, 0x7ffffffd, 0x3, 0x7, 0x5})
clone$auto(0x2000020003b4a, 0x6, 0x0, 0x0, 0x103)

program crashed: WARNING in __mmdrop
validation run: crashed=true
testing program (duration=45.004924357s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_proc_pid_maps_operations_internal-ioctl$auto_PROCMAP_QUERY-clone$auto
detailed listing:
executing program 0:
r0 = openat$auto_proc_pid_maps_operations_internal(0xffffffffffffff9c, &(0x7f0000000200)='/proc/self/maps\x00', 0x40302, 0x0)
ioctl$auto_PROCMAP_QUERY(r0, 0xc0686611, &(0x7f0000000080)={0x101, 0x34, 0x7fff, 0x5, 0x80000000009, 0x1, 0x800, 0x101, 0x5, 0x207f93, 0xfffffffe, 0x7ffffffd, 0x3, 0x7, 0x5})
clone$auto(0x2000020003b4a, 0x6, 0x0, 0x0, 0x103)

program crashed: KASAN: slab-use-after-free Read in __schedule
validation run: crashed=true
reproducing took 45m55.174922958s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: slab-use-after-free in atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
BUG: KASAN: slab-use-after-free in membarrier_switch_mm kernel/sched/sched.h:3721 [inline]
BUG: KASAN: slab-use-after-free in context_switch kernel/sched/core.c:5265 [inline]
BUG: KASAN: slab-use-after-free in __schedule+0xc8d/0x6000 kernel/sched/core.c:6907
Read of size 4 at addr ffff8880776600c0 by task syz-executor/5952

CPU: 1 UID: 0 PID: 5952 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x156/0x4c9 mm/kasan/report.c:482
 kasan_report+0xdf/0x1a0 mm/kasan/report.c:595
 check_region_inline mm/kasan/generic.c:186 [inline]
 kasan_check_range+0x10f/0x1e0 mm/kasan/generic.c:200
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
 membarrier_switch_mm kernel/sched/sched.h:3721 [inline]
 context_switch kernel/sched/core.c:5265 [inline]
 __schedule+0xc8d/0x6000 kernel/sched/core.c:6907
 __schedule_loop kernel/sched/core.c:6989 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7004
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7061
 __mutex_lock_common kernel/locking/mutex.c:692 [inline]
 __mutex_lock+0xc9a/0x1b90 kernel/locking/mutex.c:776
 rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
 inet_rtm_newaddr+0x30c/0x18b0 net/ipv4/devinet.c:978
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6958
 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 __sys_sendto+0x4aa/0x520 net/socket.c:2206
 __do_sys_sendto net/socket.c:2213 [inline]
 __se_sys_sendto net/socket.c:2209 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2209
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f19ae15c84e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffc738692f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 000055555c43b500 RCX: 00007f19ae15c84e
RDX: 0000000000000028 RSI: 00007f19aef44670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffc73869374 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f19aef44670 R15: 0000000000000000
 </TASK>

Allocated by task 5944:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 unpoison_slab_object mm/kasan/common.c:340 [inline]
 __kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:366
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4953 [inline]
 slab_alloc_node mm/slub.c:5263 [inline]
 kmem_cache_alloc_noprof+0x2ad/0x780 mm/slub.c:5270
 dup_mm kernel/fork.c:1520 [inline]
 copy_mm kernel/fork.c:1582 [inline]
 copy_process+0x72ff/0x79b0 kernel/fork.c:2223
 kernel_clone+0xfc/0x930 kernel/fork.c:2654
 __do_sys_clone+0xd9/0x120 kernel/fork.c:2795
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 6086:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2540 [inline]
 slab_free mm/slub.c:6674 [inline]
 kmem_cache_free+0x143/0x720 mm/slub.c:6789
 mmdrop include/linux/sched/mm.h:55 [inline]
 __mmput+0x379/0x410 kernel/fork.c:1186
 mmput+0x67/0x80 kernel/fork.c:1197
 exit_mm kernel/exit.c:581 [inline]
 do_exit+0x78a/0x2a30 kernel/exit.c:959
 do_group_exit+0xd5/0x2a0 kernel/exit.c:1112
 __do_sys_exit_group kernel/exit.c:1123 [inline]
 __se_sys_exit_group kernel/exit.c:1121 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1121
 x64_sys_call+0x102c/0x1530 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888077660000
 which belongs to the cache mm_struct of size 2968
The buggy address is located 192 bytes inside of
 freed 2968-byte region [ffff888077660000, ffff888077660b98)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x77660
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff88802943d801
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813ff35b40 ffffea0000a46600 0000000000000002
raw: 0000000000000000 00000000800a000a 00000000f5000000 ffff88802943d801
head: 00fff00000000040 ffff88813ff35b40 ffffea0000a46600 0000000000000002
head: 0000000000000000 00000000800a000a 00000000f5000000 ffff88802943d801
head: 00fff00000000003 ffffea0001dd9801 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5847, tgid 5847 (syz-executor), ts 113439352954, free_ts 112319299262
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1e1/0x250 mm/page_alloc.c:1884
 prep_new_page mm/page_alloc.c:1892 [inline]
 get_page_from_freelist+0x111d/0x3140 mm/page_alloc.c:3945
 __alloc_frozen_pages_noprof+0x26c/0x2410 mm/page_alloc.c:5240
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2486
 alloc_slab_page mm/slub.c:3075 [inline]
 allocate_slab mm/slub.c:3248 [inline]
 new_slab+0x2c4/0x440 mm/slub.c:3302
 ___slab_alloc+0xdb3/0x1cb0 mm/slub.c:4656
 __slab_alloc.isra.0+0x63/0x110 mm/slub.c:4779
 __slab_alloc_node mm/slub.c:4855 [inline]
 slab_alloc_node mm/slub.c:5251 [inline]
 kmem_cache_alloc_noprof+0x4ec/0x780 mm/slub.c:5270
 dup_mm kernel/fork.c:1520 [inline]
 copy_mm kernel/fork.c:1582 [inline]
 copy_process+0x72ff/0x79b0 kernel/fork.c:2223
 kernel_clone+0xfc/0x930 kernel/fork.c:2654
 __do_sys_clone+0xd9/0x120 kernel/fork.c:2795
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 10 tgid 10 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1433 [inline]
 __free_frozen_pages+0x822/0x1130 mm/page_alloc.c:2973
 discard_slab mm/slub.c:3346 [inline]
 __put_partials+0x127/0x160 mm/slub.c:3886
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xe0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:350
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4953 [inline]
 slab_alloc_node mm/slub.c:5263 [inline]
 __kmalloc_cache_noprof+0x2e1/0x810 mm/slub.c:5775
 kmalloc_noprof include/linux/slab.h:958 [inline]
 kzalloc_noprof include/linux/slab.h:1200 [inline]
 regulatory_hint_core net/wireless/reg.c:3216 [inline]
 restore_regulatory_settings+0xd59/0x1950 net/wireless/reg.c:3548
 crda_timeout_work+0x29/0x70 net/wireless/reg.c:543
 process_one_work+0x9c2/0x1840 kernel/workqueue.c:3257
 process_scheduled_works kernel/workqueue.c:3340 [inline]
 worker_thread+0x5da/0xe40 kernel/workqueue.c:3421
 kthread+0x370/0x450 kernel/kthread.c:467
 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Memory state around the buggy address:
 ffff88807765ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888077660000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888077660080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff888077660100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888077660180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: slab-use-after-free in atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
BUG: KASAN: slab-use-after-free in membarrier_switch_mm kernel/sched/sched.h:3721 [inline]
BUG: KASAN: slab-use-after-free in context_switch kernel/sched/core.c:5265 [inline]
BUG: KASAN: slab-use-after-free in __schedule+0xc8d/0x6000 kernel/sched/core.c:6907
Read of size 4 at addr ffff8880776600c0 by task syz-executor/5952

CPU: 1 UID: 0 PID: 5952 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x156/0x4c9 mm/kasan/report.c:482
 kasan_report+0xdf/0x1a0 mm/kasan/report.c:595
 check_region_inline mm/kasan/generic.c:186 [inline]
 kasan_check_range+0x10f/0x1e0 mm/kasan/generic.c:200
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
 membarrier_switch_mm kernel/sched/sched.h:3721 [inline]
 context_switch kernel/sched/core.c:5265 [inline]
 __schedule+0xc8d/0x6000 kernel/sched/core.c:6907
 __schedule_loop kernel/sched/core.c:6989 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7004
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7061
 __mutex_lock_common kernel/locking/mutex.c:692 [inline]
 __mutex_lock+0xc9a/0x1b90 kernel/locking/mutex.c:776
 rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
 inet_rtm_newaddr+0x30c/0x18b0 net/ipv4/devinet.c:978
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6958
 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 __sys_sendto+0x4aa/0x520 net/socket.c:2206
 __do_sys_sendto net/socket.c:2213 [inline]
 __se_sys_sendto net/socket.c:2209 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2209
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f19ae15c84e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffc738692f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 000055555c43b500 RCX: 00007f19ae15c84e
RDX: 0000000000000028 RSI: 00007f19aef44670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffc73869374 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f19aef44670 R15: 0000000000000000
 </TASK>

Allocated by task 5944:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 unpoison_slab_object mm/kasan/common.c:340 [inline]
 __kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:366
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4953 [inline]
 slab_alloc_node mm/slub.c:5263 [inline]
 kmem_cache_alloc_noprof+0x2ad/0x780 mm/slub.c:5270
 dup_mm kernel/fork.c:1520 [inline]
 copy_mm kernel/fork.c:1582 [inline]
 copy_process+0x72ff/0x79b0 kernel/fork.c:2223
 kernel_clone+0xfc/0x930 kernel/fork.c:2654
 __do_sys_clone+0xd9/0x120 kernel/fork.c:2795
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 6086:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2540 [inline]
 slab_free mm/slub.c:6674 [inline]
 kmem_cache_free+0x143/0x720 mm/slub.c:6789
 mmdrop include/linux/sched/mm.h:55 [inline]
 __mmput+0x379/0x410 kernel/fork.c:1186
 mmput+0x67/0x80 kernel/fork.c:1197
 exit_mm kernel/exit.c:581 [inline]
 do_exit+0x78a/0x2a30 kernel/exit.c:959
 do_group_exit+0xd5/0x2a0 kernel/exit.c:1112
 __do_sys_exit_group kernel/exit.c:1123 [inline]
 __se_sys_exit_group kernel/exit.c:1121 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1121
 x64_sys_call+0x102c/0x1530 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888077660000
 which belongs to the cache mm_struct of size 2968
The buggy address is located 192 bytes inside of
 freed 2968-byte region [ffff888077660000, ffff888077660b98)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x77660
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff88802943d801
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813ff35b40 ffffea0000a46600 0000000000000002
raw: 0000000000000000 00000000800a000a 00000000f5000000 ffff88802943d801
head: 00fff00000000040 ffff88813ff35b40 ffffea0000a46600 0000000000000002
head: 0000000000000000 00000000800a000a 00000000f5000000 ffff88802943d801
head: 00fff00000000003 ffffea0001dd9801 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5847, tgid 5847 (syz-executor), ts 113439352954, free_ts 112319299262
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1e1/0x250 mm/page_alloc.c:1884
 prep_new_page mm/page_alloc.c:1892 [inline]
 get_page_from_freelist+0x111d/0x3140 mm/page_alloc.c:3945
 __alloc_frozen_pages_noprof+0x26c/0x2410 mm/page_alloc.c:5240
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2486
 alloc_slab_page mm/slub.c:3075 [inline]
 allocate_slab mm/slub.c:3248 [inline]
 new_slab+0x2c4/0x440 mm/slub.c:3302
 ___slab_alloc+0xdb3/0x1cb0 mm/slub.c:4656
 __slab_alloc.isra.0+0x63/0x110 mm/slub.c:4779
 __slab_alloc_node mm/slub.c:4855 [inline]
 slab_alloc_node mm/slub.c:5251 [inline]
 kmem_cache_alloc_noprof+0x4ec/0x780 mm/slub.c:5270
 dup_mm kernel/fork.c:1520 [inline]
 copy_mm kernel/fork.c:1582 [inline]
 copy_process+0x72ff/0x79b0 kernel/fork.c:2223
 kernel_clone+0xfc/0x930 kernel/fork.c:2654
 __do_sys_clone+0xd9/0x120 kernel/fork.c:2795
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 10 tgid 10 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1433 [inline]
 __free_frozen_pages+0x822/0x1130 mm/page_alloc.c:2973
 discard_slab mm/slub.c:3346 [inline]
 __put_partials+0x127/0x160 mm/slub.c:3886
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xe0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:350
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4953 [inline]
 slab_alloc_node mm/slub.c:5263 [inline]
 __kmalloc_cache_noprof+0x2e1/0x810 mm/slub.c:5775
 kmalloc_noprof include/linux/slab.h:958 [inline]
 kzalloc_noprof include/linux/slab.h:1200 [inline]
 regulatory_hint_core net/wireless/reg.c:3216 [inline]
 restore_regulatory_settings+0xd59/0x1950 net/wireless/reg.c:3548
 crda_timeout_work+0x29/0x70 net/wireless/reg.c:543
 process_one_work+0x9c2/0x1840 kernel/workqueue.c:3257
 process_scheduled_works kernel/workqueue.c:3340 [inline]
 worker_thread+0x5da/0xe40 kernel/workqueue.c:3421
 kthread+0x370/0x450 kernel/kthread.c:467
 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Memory state around the buggy address:
 ffff88807765ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888077660000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888077660080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff888077660100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888077660180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================