Extracting prog: 47.526191882s
Minimizing prog: 6m2.841590877s
Simplifying prog options: 2m48.336846725s
Extracting C: 1m54.953437192s
Simplifying C: 8m5.357538537s


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}}): openat$auto_tracing_mark_raw_fops_trace-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_tracing_mark_raw_fops_trace(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/tracing/trace_marker_raw\x00', 0x2, 0x0)
write$auto(r0, &(0x7f0000000040)='\x00', 0xa5f)

program crashed: WARNING in write_raw_marker_to_buffer
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=45.27392712s, {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$auto_tracing_mark_raw_fops_trace
detailed listing:
executing program 0:
openat$auto_tracing_mark_raw_fops_trace(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/tracing/trace_marker_raw\x00', 0x2, 0x0)

program did not crash
testing program (duration=45.27392712s, {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}}): write$auto
detailed listing:
executing program 0:
write$auto(0xffffffffffffffff, &(0x7f0000000040)='\x00', 0xa5f)

program did not crash
testing program (duration=45.27392712s, {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$auto_tracing_mark_raw_fops_trace-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_tracing_mark_raw_fops_trace(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write$auto(r0, &(0x7f0000000040)='\x00', 0xa5f)

program did not crash
testing program (duration=45.27392712s, {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$auto_tracing_mark_raw_fops_trace-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_tracing_mark_raw_fops_trace(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/tracing/trace_marker_raw\x00', 0x2, 0x0)
write$auto(r0, 0x0, 0xa5f)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.27392712s, {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$auto_tracing_mark_raw_fops_trace-write$auto
program crashed: WARNING in corrupted
a never seen crash title: WARNING in corrupted, ignore
simplifying guilty program options
testing program (duration=45.27392712s, {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$auto_tracing_mark_raw_fops_trace-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_tracing_mark_raw_fops_trace(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/tracing/trace_marker_raw\x00', 0x2, 0x0)
write$auto(r0, &(0x7f0000000040)='\x00', 0xa5f)

program crashed: WARNING in write_raw_marker_to_buffer
extracting C reproducer
testing compiled C program (duration=45.27392712s, {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$auto_tracing_mark_raw_fops_trace-write$auto
program crashed: WARNING in write_raw_marker_to_buffer
simplifying C reproducer
testing compiled C program (duration=45.27392712s, {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}}): openat$auto_tracing_mark_raw_fops_trace-write$auto
program crashed: WARNING in write_raw_marker_to_buffer
testing compiled C program (duration=45.27392712s, {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}}): openat$auto_tracing_mark_raw_fops_trace-write$auto
program crashed: WARNING in write_raw_marker_to_buffer
testing compiled C program (duration=45.27392712s, {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}}): openat$auto_tracing_mark_raw_fops_trace-write$auto
program crashed: WARNING in write_raw_marker_to_buffer
testing compiled C program (duration=45.27392712s, {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}}): openat$auto_tracing_mark_raw_fops_trace-write$auto
program crashed: WARNING in write_raw_marker_to_buffer
testing compiled C program (duration=45.27392712s, {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}}): openat$auto_tracing_mark_raw_fops_trace-write$auto
program crashed: WARNING in write_raw_marker_to_buffer
testing compiled C program (duration=45.27392712s, {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}}): openat$auto_tracing_mark_raw_fops_trace-write$auto
program crashed: WARNING in write_raw_marker_to_buffer
testing program (duration=45.27392712s, {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}}): openat$auto_tracing_mark_raw_fops_trace-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_tracing_mark_raw_fops_trace(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/tracing/trace_marker_raw\x00', 0x2, 0x0)
write$auto(r0, &(0x7f0000000040)='\x00', 0xa5f)

program crashed: WARNING in write_raw_marker_to_buffer
validation run: crashed=true
testing program (duration=45.27392712s, {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}}): openat$auto_tracing_mark_raw_fops_trace-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_tracing_mark_raw_fops_trace(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/tracing/trace_marker_raw\x00', 0x2, 0x0)
write$auto(r0, &(0x7f0000000040)='\x00', 0xa5f)

program crashed: WARNING in write_raw_marker_to_buffer
validation run: crashed=true
testing program (duration=45.27392712s, {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}}): openat$auto_tracing_mark_raw_fops_trace-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_tracing_mark_raw_fops_trace(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/tracing/trace_marker_raw\x00', 0x2, 0x0)
write$auto(r0, &(0x7f0000000040)='\x00', 0xa5f)

program crashed: WARNING in write_raw_marker_to_buffer
validation run: crashed=true
reproducing took 24m48.30738753s
repro crashed as (corrupted=false):
------------[ cut here ]------------
memcpy: detected field-spanning write (size 2655) of single field "&entry->id" at kernel/trace/trace.c:7458 (size 4)
WARNING: CPU: 0 PID: 6004 at kernel/trace/trace.c:7458 write_raw_marker_to_buffer.isra.0+0x2d4/0x330 kernel/trace/trace.c:7458
Modules linked in:
CPU: 0 UID: 0 PID: 6004 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:write_raw_marker_to_buffer.isra.0+0x2d4/0x330 kernel/trace/trace.c:7458
Code: ff e8 30 74 fa ff c6 05 b4 7e aa 0e 01 90 b9 04 00 00 00 48 c7 c2 e0 1e 93 8b 4c 89 e6 48 c7 c7 40 1f 93 8b e8 6d fc b8 ff 90 <0f> 0b 90 90 e9 d7 fe ff ff e8 6e 04 62 00 e9 da fd ff ff e8 64 04
RSP: 0018:ffffc90003837c40 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88813ff34018 RCX: ffffffff817a5e58
RDX: ffff888031d73c80 RSI: ffffffff817a5e65 RDI: 0000000000000001
RBP: ffff88813ff34010 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000a5f
R13: ffff88813ff18c00 R14: 0000000000000000 R15: 0000200000000040
FS:  000055558e5ff500(0000) GS:ffff8881249e6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30263fff CR3: 0000000034638000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 tracing_mark_raw_write+0x2da/0x4a0 kernel/trace/trace.c:7500
 vfs_write+0x2a0/0x11d0 fs/read_write.c:684
 ksys_write+0x1f8/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f18a0b8eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff2b2d2c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f18a0de5fa0 RCX: 00007f18a0b8eec9
RDX: 0000000000000a5f RSI: 0000200000000040 RDI: 0000000000000003
RBP: 00007f18a0c11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f18a0de5fa0 R14: 00007f18a0de5fa0 R15: 0000000000000003
 </TASK>

final repro crashed as (corrupted=false):
------------[ cut here ]------------
memcpy: detected field-spanning write (size 2655) of single field "&entry->id" at kernel/trace/trace.c:7458 (size 4)
WARNING: CPU: 0 PID: 6004 at kernel/trace/trace.c:7458 write_raw_marker_to_buffer.isra.0+0x2d4/0x330 kernel/trace/trace.c:7458
Modules linked in:
CPU: 0 UID: 0 PID: 6004 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:write_raw_marker_to_buffer.isra.0+0x2d4/0x330 kernel/trace/trace.c:7458
Code: ff e8 30 74 fa ff c6 05 b4 7e aa 0e 01 90 b9 04 00 00 00 48 c7 c2 e0 1e 93 8b 4c 89 e6 48 c7 c7 40 1f 93 8b e8 6d fc b8 ff 90 <0f> 0b 90 90 e9 d7 fe ff ff e8 6e 04 62 00 e9 da fd ff ff e8 64 04
RSP: 0018:ffffc90003837c40 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88813ff34018 RCX: ffffffff817a5e58
RDX: ffff888031d73c80 RSI: ffffffff817a5e65 RDI: 0000000000000001
RBP: ffff88813ff34010 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000a5f
R13: ffff88813ff18c00 R14: 0000000000000000 R15: 0000200000000040
FS:  000055558e5ff500(0000) GS:ffff8881249e6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30263fff CR3: 0000000034638000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 tracing_mark_raw_write+0x2da/0x4a0 kernel/trace/trace.c:7500
 vfs_write+0x2a0/0x11d0 fs/read_write.c:684
 ksys_write+0x1f8/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f18a0b8eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff2b2d2c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f18a0de5fa0 RCX: 00007f18a0b8eec9
RDX: 0000000000000a5f RSI: 0000200000000040 RDI: 0000000000000003
RBP: 00007f18a0c11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f18a0de5fa0 R14: 00007f18a0de5fa0 R15: 0000000000000003
 </TASK>