Extracting prog: 37.550539044s
Minimizing prog: 17m22.421379655s
Simplifying prog options: 5m48.76219904s
Extracting C: 1m5.178534629s
Simplifying C: 0s


extracting reproducer from 38 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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program crashed: WARNING in aa_policy_destroy
single: successfully extracted reproducer
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=45.422212632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)

program did not crash
testing program (duration=45.422212632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program did not crash
testing program (duration=45.422212632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program did not crash
testing program (duration=45.422212632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount-openat-write
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program did not crash
testing program (duration=45.422212632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52)

program did not crash
testing program (duration=45.422212632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program did not crash
testing program (duration=45.422212632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program did not crash
testing program (duration=45.422212632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program did not crash
testing program (duration=45.422212632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program did not crash
testing program (duration=45.422212632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, 0x0, 0x0) (fail_nth: 8)

program did not crash
testing program (duration=45.422212632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300), 0x0) (fail_nth: 8)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.422212632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program did not crash
simplifying guilty program options
testing program (duration=45.422212632s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program crashed: WARNING in aa_policy_destroy
extracting C reproducer
testing compiled C program (duration=45.422212632s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program did not crash
testing program (duration=45.422212632s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program crashed: WARNING in aa_policy_destroy
extracting C reproducer
testing compiled C program (duration=45.422212632s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program did not crash
testing program (duration=45.422212632s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program crashed: WARNING in aa_policy_destroy
validation run: crashed=true
testing program (duration=45.422212632s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program crashed: WARNING in aa_policy_destroy
validation run: crashed=true
testing program (duration=45.422212632s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./security\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./security\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./security/apparmor/.replace\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)="04080076657273696f6e00020500000004080070726f66696c6500070504002f2f6f00040600666c616773000702000000000200000000020000000008020000000002000000000200000000020000000008", 0x52) (fail_nth: 8)

program crashed: WARNING in aa_policy_destroy
validation run: crashed=true
reproducing took 29m43.177803931s
repro crashed as (corrupted=false):
RBP: 00007ffc1e5ae100 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fa750225fac R14: 00007fa750225fa0 R15: 00007fa750225fa0
 </TASK>
------------[ cut here ]------------
AppArmor WARN aa_policy_destroy: (((!list_empty(&policy->profiles) && (&policy->profiles)->prev != ((void *) 0x122 + (0xdead000000000000UL))))): 
WARNING: security/apparmor/lib.c:508 at aa_policy_destroy+0x164/0x1b0 security/apparmor/lib.c:508, CPU#0: syz.0.17/5840
Modules linked in:
CPU: 0 UID: 0 PID: 5840 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:aa_policy_destroy+0x16b/0x1b0 security/apparmor/lib.c:508
Code: 85 ed 7e 4d e8 f6 9c 33 fd 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc cc e8 e3 9c 33 fd 48 8d 3d 8c 03 12 0c 48 c7 c6 4d bb 6b 8e <67> 48 0f b9 3a e9 04 ff ff ff e8 c6 9c 33 fd 48 8d 3d 7f 03 12 0c
RSP: 0018:ffffc90003c8ea00 EFLAGS: 00010293
RAX: ffffffff849439bd RBX: ffff88807f3a8000 RCX: ffff888020bdddc0
RDX: 0000000000000000 RSI: ffffffff8e6bbb4d RDI: ffffffff90a63d50
RBP: 0000000000000000 R08: 0000000000000cc0 R09: 00000000ffffffff
R10: dffffc0000000000 R11: fffffbfff1e15c4f R12: dead000000000122
R13: ffff88807f3a8000 R14: ffff88807f3a8028 R15: dffffc0000000000
FS:  000055556f624500(0000) GS:ffff88812488a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa74fe70000 CR3: 000000003510c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 aa_free_profile+0x9d/0x9f0 security/apparmor/policy.c:335
 aa_alloc_profile+0x1e4/0x3e0 security/apparmor/policy.c:417
 unpack_profile security/apparmor/policy_unpack.c:1154 [inline]
 aa_unpack+0x17e8/0x7500 security/apparmor/policy_unpack.c:1751
 aa_replace_profiles+0x24a/0x2ab0 security/apparmor/policy.c:1199
 policy_update+0x3a9/0x640 security/apparmor/apparmorfs.c:673
 profile_replace+0x1cb/0x320 security/apparmor/apparmorfs.c:709
 vfs_write+0x296/0xba0 fs/read_write.c:685
 ksys_write+0x150/0x270 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa74ff9e0d9
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:00007ffc1e5ae098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa750225fa0 RCX: 00007fa74ff9e0d9
RDX: 0000000000000052 RSI: 0000200000000300 RDI: 0000000000000003
RBP: 00007ffc1e5ae100 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fa750225fac R14: 00007fa750225fa0 R15: 00007fa750225fa0
 </TASK>
----------------
Code disassembly (best guess):
   0:	85 ed                	test   %ebp,%ebp
   2:	7e 4d                	jle    0x51
   4:	e8 f6 9c 33 fd       	call   0xfd339cff
   9:	5b                   	pop    %rbx
   a:	41 5c                	pop    %r12
   c:	41 5e                	pop    %r14
   e:	41 5f                	pop    %r15
  10:	5d                   	pop    %rbp
  11:	c3                   	ret
  12:	cc                   	int3
  13:	cc                   	int3
  14:	cc                   	int3
  15:	cc                   	int3
  16:	cc                   	int3
  17:	e8 e3 9c 33 fd       	call   0xfd339cff
  1c:	48 8d 3d 8c 03 12 0c 	lea    0xc12038c(%rip),%rdi        # 0xc1203af
  23:	48 c7 c6 4d bb 6b 8e 	mov    $0xffffffff8e6bbb4d,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 04 ff ff ff       	jmp    0xffffff38
  34:	e8 c6 9c 33 fd       	call   0xfd339cff
  39:	48 8d 3d 7f 03 12 0c 	lea    0xc12037f(%rip),%rdi        # 0xc1203bf

final repro crashed as (corrupted=false):
RBP: 00007ffc1e5ae100 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fa750225fac R14: 00007fa750225fa0 R15: 00007fa750225fa0
 </TASK>
------------[ cut here ]------------
AppArmor WARN aa_policy_destroy: (((!list_empty(&policy->profiles) && (&policy->profiles)->prev != ((void *) 0x122 + (0xdead000000000000UL))))): 
WARNING: security/apparmor/lib.c:508 at aa_policy_destroy+0x164/0x1b0 security/apparmor/lib.c:508, CPU#0: syz.0.17/5840
Modules linked in:
CPU: 0 UID: 0 PID: 5840 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:aa_policy_destroy+0x16b/0x1b0 security/apparmor/lib.c:508
Code: 85 ed 7e 4d e8 f6 9c 33 fd 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc cc e8 e3 9c 33 fd 48 8d 3d 8c 03 12 0c 48 c7 c6 4d bb 6b 8e <67> 48 0f b9 3a e9 04 ff ff ff e8 c6 9c 33 fd 48 8d 3d 7f 03 12 0c
RSP: 0018:ffffc90003c8ea00 EFLAGS: 00010293
RAX: ffffffff849439bd RBX: ffff88807f3a8000 RCX: ffff888020bdddc0
RDX: 0000000000000000 RSI: ffffffff8e6bbb4d RDI: ffffffff90a63d50
RBP: 0000000000000000 R08: 0000000000000cc0 R09: 00000000ffffffff
R10: dffffc0000000000 R11: fffffbfff1e15c4f R12: dead000000000122
R13: ffff88807f3a8000 R14: ffff88807f3a8028 R15: dffffc0000000000
FS:  000055556f624500(0000) GS:ffff88812488a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa74fe70000 CR3: 000000003510c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 aa_free_profile+0x9d/0x9f0 security/apparmor/policy.c:335
 aa_alloc_profile+0x1e4/0x3e0 security/apparmor/policy.c:417
 unpack_profile security/apparmor/policy_unpack.c:1154 [inline]
 aa_unpack+0x17e8/0x7500 security/apparmor/policy_unpack.c:1751
 aa_replace_profiles+0x24a/0x2ab0 security/apparmor/policy.c:1199
 policy_update+0x3a9/0x640 security/apparmor/apparmorfs.c:673
 profile_replace+0x1cb/0x320 security/apparmor/apparmorfs.c:709
 vfs_write+0x296/0xba0 fs/read_write.c:685
 ksys_write+0x150/0x270 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa74ff9e0d9
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:00007ffc1e5ae098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa750225fa0 RCX: 00007fa74ff9e0d9
RDX: 0000000000000052 RSI: 0000200000000300 RDI: 0000000000000003
RBP: 00007ffc1e5ae100 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fa750225fac R14: 00007fa750225fa0 R15: 00007fa750225fa0
 </TASK>
----------------
Code disassembly (best guess):
   0:	85 ed                	test   %ebp,%ebp
   2:	7e 4d                	jle    0x51
   4:	e8 f6 9c 33 fd       	call   0xfd339cff
   9:	5b                   	pop    %rbx
   a:	41 5c                	pop    %r12
   c:	41 5e                	pop    %r14
   e:	41 5f                	pop    %r15
  10:	5d                   	pop    %rbp
  11:	c3                   	ret
  12:	cc                   	int3
  13:	cc                   	int3
  14:	cc                   	int3
  15:	cc                   	int3
  16:	cc                   	int3
  17:	e8 e3 9c 33 fd       	call   0xfd339cff
  1c:	48 8d 3d 8c 03 12 0c 	lea    0xc12038c(%rip),%rdi        # 0xc1203af
  23:	48 c7 c6 4d bb 6b 8e 	mov    $0xffffffff8e6bbb4d,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 04 ff ff ff       	jmp    0xffffff38
  34:	e8 c6 9c 33 fd       	call   0xfd339cff
  39:	48 8d 3d 7f 03 12 0c 	lea    0xc12037f(%rip),%rdi        # 0xc1203bf