Extracting prog: 1m54.6323151s
Minimizing prog: 2m53.281906722s
Simplifying prog options: 3m5.197455649s
Extracting C: 54.451488066s
Simplifying C: 8m39.946858759s


extracting reproducer from 26 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}}): syz_clone3
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000000)={0x142b63480, &(0x7f0000000080), 0x0, 0x0, {0x3e}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program crashed: Internal error in kernel_clone
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
testing program (duration=45.181783156s, {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}}): syz_clone3
detailed listing:
executing program 0:
syz_clone3(0x0, 0x0)

program did not crash
testing program (duration=45.181783156s, {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}}): syz_clone3
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000000)={0x142b63480, 0x0, 0x0, 0x0, {0x3e}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.181783156s, {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}}): syz_clone3
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=45.181783156s, {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}}): syz_clone3
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000000)={0x142b63480, &(0x7f0000000080), 0x0, 0x0, {0x3e}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program crashed: Internal error in kernel_clone
extracting C reproducer
testing compiled C program (duration=45.181783156s, {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}}): syz_clone3
program crashed: Internal error in kernel_clone
simplifying C reproducer
testing compiled C program (duration=45.181783156s, {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}}): syz_clone3
program crashed: Internal error in kernel_clone
testing compiled C program (duration=45.181783156s, {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}}): syz_clone3
program crashed: Internal error in kernel_clone
testing compiled C program (duration=45.181783156s, {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}}): syz_clone3
program crashed: Internal error in kernel_clone
testing compiled C program (duration=45.181783156s, {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}}): syz_clone3
program crashed: Internal error in kernel_clone
testing compiled C program (duration=45.181783156s, {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}}): syz_clone3
program crashed: Internal error in kernel_clone
testing compiled C program (duration=45.181783156s, {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}}): syz_clone3
program crashed: Internal error in kernel_clone
testing program (duration=45.181783156s, {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}}): syz_clone3
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000000)={0x142b63480, &(0x7f0000000080), 0x0, 0x0, {0x3e}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program crashed: Internal error in kernel_clone
validation run: crashed=true
testing program (duration=45.181783156s, {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}}): syz_clone3
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000000)={0x142b63480, &(0x7f0000000080), 0x0, 0x0, {0x3e}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program crashed: Internal error in kernel_clone
validation run: crashed=true
testing program (duration=45.181783156s, {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}}): syz_clone3
detailed listing:
executing program 0:
syz_clone3(&(0x7f0000000000)={0x142b63480, &(0x7f0000000080), 0x0, 0x0, {0x3e}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program crashed: Internal error in kernel_clone
validation run: crashed=true
reproducing took 22m52.465554587s
repro crashed as (corrupted=false):
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4233 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 : kernel_clone+0x3b8/0x9d4 kernel/fork.c:-1
lr : __uaccess_mask_ptr arch/arm64/include/asm/uaccess.h:244 [inline]
lr : kernel_clone+0x39c/0x9d4 kernel/fork.c:2695
sp : ffff80001fd47a60
x29: ffff80001fd47b40 x28: ffff700003fa8f50 x27: 0000000142b63480
x26: 0000000000000000 x25: 0000000000000001 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000004 x21: ffff80001fd47aa0
x20: dfff800000000000 x19: ffff0000d6c41b40 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80000817ef60 x15: 00000000c0000000
x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000ffffffffffff x9 : 0000000000000000
x8 : 00000000fffffff2 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 kernel_clone+0x3b8/0x9d4 kernel/fork.c:2695
 __do_sys_clone3 kernel/fork.c:2954 [inline]
 __se_sys_clone3 kernel/fork.c:2938 [inline]
 __arm64_sys_clone3+0x2f4/0x32c kernel/fork.c:2938
 __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: ea2a013f 9a9f034b d503229f b8000976 (14000002) 
---[ end trace 0dc049ea3d846448 ]---
----------------
Code disassembly (best guess):
   0:	ea2a013f 	bics	xzr, x9, x10
   4:	9a9f034b 	csel	x11, x26, xzr, eq	// eq = none
   8:	d503229f 	csdb
   c:	b8000976 	sttr	w22, [x11]
* 10:	14000002 	b	0x18 <-- trapping instruction

final repro crashed as (corrupted=false):
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4233 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 : kernel_clone+0x3b8/0x9d4 kernel/fork.c:-1
lr : __uaccess_mask_ptr arch/arm64/include/asm/uaccess.h:244 [inline]
lr : kernel_clone+0x39c/0x9d4 kernel/fork.c:2695
sp : ffff80001fd47a60
x29: ffff80001fd47b40 x28: ffff700003fa8f50 x27: 0000000142b63480
x26: 0000000000000000 x25: 0000000000000001 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000004 x21: ffff80001fd47aa0
x20: dfff800000000000 x19: ffff0000d6c41b40 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80000817ef60 x15: 00000000c0000000
x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000ffffffffffff x9 : 0000000000000000
x8 : 00000000fffffff2 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 kernel_clone+0x3b8/0x9d4 kernel/fork.c:2695
 __do_sys_clone3 kernel/fork.c:2954 [inline]
 __se_sys_clone3 kernel/fork.c:2938 [inline]
 __arm64_sys_clone3+0x2f4/0x32c kernel/fork.c:2938
 __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: ea2a013f 9a9f034b d503229f b8000976 (14000002) 
---[ end trace 0dc049ea3d846448 ]---
----------------
Code disassembly (best guess):
   0:	ea2a013f 	bics	xzr, x9, x10
   4:	9a9f034b 	csel	x11, x26, xzr, eq	// eq = none
   8:	d503229f 	csdb
   c:	b8000976 	sttr	w22, [x11]
* 10:	14000002 	b	0x18 <-- trapping instruction