Extracting prog: 1m2.701005562s
Minimizing prog: 3m48.032855865s
Simplifying prog options: 2m17.504965889s
Extracting C: 1m40.36383912s
Simplifying C: 8m37.634641629s


extracting reproducer from 31 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs: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}}): move_pages
detailed listing:
executing program 0:
move_pages(0x0, 0x20000000000000b3, &(0x7f0000000280), &(0x7f0000000080)=[0x0], 0x0, 0x0)

program crashed: Internal error in sys_move_pages
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
testing program (duration=45.186498096s, {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}}): move_pages
detailed listing:
executing program 0:
move_pages(0x0, 0x0, 0x0, &(0x7f0000000080)=[0x0], 0x0, 0x0)

program did not crash
testing program (duration=45.186498096s, {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}}): move_pages
detailed listing:
executing program 0:
move_pages(0x0, 0x0, &(0x7f0000000280), 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.186498096s, {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}}): move_pages
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=45.186498096s, {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}}): move_pages
detailed listing:
executing program 0:
move_pages(0x0, 0x20000000000000b3, &(0x7f0000000280), &(0x7f0000000080)=[0x0], 0x0, 0x0)

program crashed: Internal error in sys_move_pages
extracting C reproducer
testing compiled C program (duration=45.186498096s, {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}}): move_pages
program crashed: Internal error in sys_move_pages
simplifying C reproducer
testing compiled C program (duration=45.186498096s, {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}}): move_pages
program crashed: Internal error in sys_move_pages
testing compiled C program (duration=45.186498096s, {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}}): move_pages
program crashed: Internal error in sys_move_pages
testing compiled C program (duration=45.186498096s, {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}}): move_pages
program crashed: Internal error in sys_move_pages
testing compiled C program (duration=45.186498096s, {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}}): move_pages
program crashed: Internal error in sys_move_pages
testing compiled C program (duration=45.186498096s, {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}}): move_pages
program crashed: Internal error in sys_move_pages
testing compiled C program (duration=45.186498096s, {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}}): move_pages
program crashed: Internal error in sys_move_pages
testing program (duration=45.186498096s, {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}}): move_pages
detailed listing:
executing program 0:
move_pages(0x0, 0x20000000000000b3, &(0x7f0000000280), &(0x7f0000000080)=[0x0], 0x0, 0x0)

program crashed: Internal error in sys_move_pages
validation run: crashed=true
testing program (duration=45.186498096s, {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}}): move_pages
detailed listing:
executing program 0:
move_pages(0x0, 0x20000000000000b3, &(0x7f0000000280), &(0x7f0000000080)=[0x0], 0x0, 0x0)

program crashed: Internal error in sys_move_pages
validation run: crashed=true
testing program (duration=45.186498096s, {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}}): move_pages
detailed listing:
executing program 0:
move_pages(0x0, 0x20000000000000b3, &(0x7f0000000280), &(0x7f0000000080)=[0x0], 0x0, 0x0)

program crashed: Internal error in sys_mount
validation run: crashed=true
reproducing took 22m4.567130001s
repro crashed as (corrupted=false):
cgroup: Unknown subsys name 'net'
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4049 Comm: syz-executor 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 : copy_mount_options fs/namespace.c:3235 [inline]
pc : __do_sys_mount fs/namespace.c:3560 [inline]
pc : __se_sys_mount fs/namespace.c:3542 [inline]
pc : __arm64_sys_mount+0x2f8/0x5e4 fs/namespace.c:3542
lr : copy_mount_options fs/namespace.c:3235 [inline]
lr : __do_sys_mount fs/namespace.c:3560 [inline]
lr : __se_sys_mount fs/namespace.c:3542 [inline]
lr : __arm64_sys_mount+0x2d4/0x5e4 fs/namespace.c:3542
sp : ffff80001f5a7c80
x29: ffff80001f5a7d20 x28: 00000000fffffff2 x27: 0000ffffd52e6000
x26: ffff0000d12251c0 x25: 0000000000000000 x24: 0000ffffd52e5251
x23: ffff0000c2dd4000 x22: 0000000000000daf x21: dfff800000000000
x20: 00000000fffffdaf x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000089650ac x15: 0000ffffd52e5251
x14: 2e3832312e303120 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000ffffffffffff x9 : 0000ffffd52e6000
x8 : 0000ffffd52e6000 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 copy_mount_options fs/namespace.c:3235 [inline]
 __do_sys_mount fs/namespace.c:3560 [inline]
 __se_sys_mount fs/namespace.c:3542 [inline]
 __arm64_sys_mount+0x2f8/0x5e4 fs/namespace.c:3542
 __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 2a1903fc 2a1903e0 38400933 (2a1c03e1) 
---[ end trace 5864d0859216d74c ]---
----------------
Code disassembly (best guess):
   0:	d503229f 	csdb
   4:	2a1903fc 	mov	w28, w25
   8:	2a1903e0 	mov	w0, w25
   c:	38400933 	ldtrb	w19, [x9]
* 10:	2a1c03e1 	mov	w1, w28 <-- trapping instruction

final repro crashed as (corrupted=false):
cgroup: Unknown subsys name 'net'
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4049 Comm: syz-executor 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 : copy_mount_options fs/namespace.c:3235 [inline]
pc : __do_sys_mount fs/namespace.c:3560 [inline]
pc : __se_sys_mount fs/namespace.c:3542 [inline]
pc : __arm64_sys_mount+0x2f8/0x5e4 fs/namespace.c:3542
lr : copy_mount_options fs/namespace.c:3235 [inline]
lr : __do_sys_mount fs/namespace.c:3560 [inline]
lr : __se_sys_mount fs/namespace.c:3542 [inline]
lr : __arm64_sys_mount+0x2d4/0x5e4 fs/namespace.c:3542
sp : ffff80001f5a7c80
x29: ffff80001f5a7d20 x28: 00000000fffffff2 x27: 0000ffffd52e6000
x26: ffff0000d12251c0 x25: 0000000000000000 x24: 0000ffffd52e5251
x23: ffff0000c2dd4000 x22: 0000000000000daf x21: dfff800000000000
x20: 00000000fffffdaf x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000089650ac x15: 0000ffffd52e5251
x14: 2e3832312e303120 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000ffffffffffff x9 : 0000ffffd52e6000
x8 : 0000ffffd52e6000 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 copy_mount_options fs/namespace.c:3235 [inline]
 __do_sys_mount fs/namespace.c:3560 [inline]
 __se_sys_mount fs/namespace.c:3542 [inline]
 __arm64_sys_mount+0x2f8/0x5e4 fs/namespace.c:3542
 __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 2a1903fc 2a1903e0 38400933 (2a1c03e1) 
---[ end trace 5864d0859216d74c ]---
----------------
Code disassembly (best guess):
   0:	d503229f 	csdb
   4:	2a1903fc 	mov	w28, w25
   8:	2a1903e0 	mov	w0, w25
   c:	38400933 	ldtrb	w19, [x9]
* 10:	2a1c03e1 	mov	w1, w28 <-- trapping instruction