Extracting prog: 1m49.580349842s
Minimizing prog: 4m27.042951642s
Simplifying prog options: 6m45.175352131s
Extracting C: 1m54.179608803s
Simplifying C: 5m50.019064941s


extracting reproducer from 3 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:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-capset
detailed listing:
executing program 0:
mmap(&(0x7f0000003000/0x3000)=nil, 0x3000, 0x0, 0x31, 0xffffffffffffffff, 0x0)
capset(&(0x7f0000002ffa)={0x20080522, 0xffffffffffffffff}, 0x0)

program crashed: Internal error in sys_capset
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=44.946631549s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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
detailed listing:
executing program 0:
mmap(&(0x7f0000003000/0x3000)=nil, 0x3000, 0x0, 0x31, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=44.946631549s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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}}): capset
detailed listing:
executing program 0:
capset(&(0x7f0000002ffa)={0x20080522, 0xffffffffffffffff}, 0x0)

program did not crash
testing program (duration=44.946631549s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-capset
detailed listing:
executing program 0:
mmap(&(0x7f0000003000/0x3000)=nil, 0x3000, 0x0, 0x31, 0xffffffffffffffff, 0x0)
capset(0x0, 0x0)

program crashed: Internal error in cap_validate_magic
extracting C reproducer
testing compiled C program (duration=44.946631549s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-capset
program crashed: Internal error in sys_mount
a never seen crash title: Internal error in sys_mount, ignore
simplifying guilty program options
testing program (duration=44.946631549s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-capset
detailed listing:
executing program 0:
mmap(&(0x7f0000003000/0x3000)=nil, 0x3000, 0x0, 0x31, 0xffffffffffffffff, 0x0)
capset(0x0, 0x0)

program crashed: Internal error in cap_validate_magic
extracting C reproducer
testing compiled C program (duration=44.946631549s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-capset
program crashed: Internal error in sys_mount
a never seen crash title: Internal error in sys_mount, ignore
testing program (duration=44.946631549s, {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}}): mmap-capset
detailed listing:
executing program 0:
mmap(&(0x7f0000003000/0x3000)=nil, 0x3000, 0x0, 0x31, 0xffffffffffffffff, 0x0)
capset(0x0, 0x0)

program crashed: Internal error in cap_validate_magic
extracting C reproducer
testing compiled C program (duration=44.946631549s, {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}}): mmap-capset
program crashed: Internal error in cap_validate_magic
simplifying C reproducer
testing compiled C program (duration=44.946631549s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-capset
program crashed: Internal error in cap_validate_magic
testing compiled C program (duration=44.946631549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-capset
program crashed: Internal error in cap_validate_magic
testing compiled C program (duration=44.946631549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-capset
program crashed: Internal error in cap_validate_magic
testing compiled C program (duration=44.946631549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-capset
program crashed: Internal error in cap_validate_magic
testing compiled C program (duration=44.946631549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-capset
program crashed: Internal error in cap_validate_magic
testing program (duration=44.946631549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-capset
detailed listing:
executing program 0:
mmap(&(0x7f0000003000/0x3000)=nil, 0x3000, 0x0, 0x31, 0xffffffffffffffff, 0x0)
capset(0x0, 0x0)

program crashed: Internal error in sys_mount
validation run: crashed=true
testing program (duration=44.946631549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-capset
detailed listing:
executing program 0:
mmap(&(0x7f0000003000/0x3000)=nil, 0x3000, 0x0, 0x31, 0xffffffffffffffff, 0x0)
capset(0x0, 0x0)

program crashed: Internal error in cap_validate_magic
validation run: crashed=true
testing program (duration=44.946631549s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-capset
detailed listing:
executing program 0:
mmap(&(0x7f0000003000/0x3000)=nil, 0x3000, 0x0, 0x31, 0xffffffffffffffff, 0x0)
capset(0x0, 0x0)

program crashed: Internal error in cap_validate_magic
validation run: crashed=true
reproducing took 26m0.618132236s
repro crashed as (corrupted=false):
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4254 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : cap_validate_magic+0x150/0x418 kernel/capability.c:86
lr : cap_validate_magic+0x12c/0x418 kernel/capability.c:86
sp : ffff80001fe57b00
x29: ffff80001fe57ba0 x28: 1fffe0001bae6a3c x27: 0000000000000000
x26: ffff80001fe57b20 x25: dfff800000000000 x24: ffff700003fcaf64
x23: 00000000fffffff2 x22: ffff0000dd7351e4 x21: ffff0000dd7351c0
x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000081afdfc x15: 0000000000000000
x14: 0000000000000000 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000ffffffffffff x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 cap_validate_magic+0x150/0x418 kernel/capability.c:86
 __do_sys_capset kernel/capability.c:231 [inline]
 __se_sys_capset kernel/capability.c:222 [inline]
 __arm64_sys_capset+0x108/0x7b8 kernel/capability.c:222
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: d503229f 2a1f03f7 2a1f03e0 b8400933 (2a1703e1) 
---[ end trace df16b0871245cbd0 ]---
----------------
Code disassembly (best guess):
   0:	d503229f 	csdb
   4:	2a1f03f7 	mov	w23, wzr
   8:	2a1f03e0 	mov	w0, wzr
   c:	b8400933 	ldtr	w19, [x9]
* 10:	2a1703e1 	mov	w1, w23 <-- trapping instruction

final repro crashed as (corrupted=false):
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4254 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : cap_validate_magic+0x150/0x418 kernel/capability.c:86
lr : cap_validate_magic+0x12c/0x418 kernel/capability.c:86
sp : ffff80001fe57b00
x29: ffff80001fe57ba0 x28: 1fffe0001bae6a3c x27: 0000000000000000
x26: ffff80001fe57b20 x25: dfff800000000000 x24: ffff700003fcaf64
x23: 00000000fffffff2 x22: ffff0000dd7351e4 x21: ffff0000dd7351c0
x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000081afdfc x15: 0000000000000000
x14: 0000000000000000 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000ffffffffffff x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 cap_validate_magic+0x150/0x418 kernel/capability.c:86
 __do_sys_capset kernel/capability.c:231 [inline]
 __se_sys_capset kernel/capability.c:222 [inline]
 __arm64_sys_capset+0x108/0x7b8 kernel/capability.c:222
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: d503229f 2a1f03f7 2a1f03e0 b8400933 (2a1703e1) 
---[ end trace df16b0871245cbd0 ]---
----------------
Code disassembly (best guess):
   0:	d503229f 	csdb
   4:	2a1f03f7 	mov	w23, wzr
   8:	2a1f03e0 	mov	w0, wzr
   c:	b8400933 	ldtr	w19, [x9]
* 10:	2a1703e1 	mov	w1, w23 <-- trapping instruction