Extracting prog: 2m21.068326877s
Minimizing prog: 4m29.139106163s
Simplifying prog options: 3m53.768901718s
Extracting C: 55.125693015s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_tracing_buffers_fops_trace-mmap$auto_tracing_buffers_fops_trace
detailed listing:
executing program 0:
r0 = openat$auto_tracing_buffers_fops_trace(0xffffffffffffff9c, &(0x7f0000000240)='/sys/kernel/tracing/per_cpu/cpu0/trace_pipe_raw\x00', 0x1000, 0x0)
mmap$auto_tracing_buffers_fops_trace(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x2000000, 0x11, r0, 0x400000)

program crashed: WARNING in ring_buffer_map
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=59.700280054s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_tracing_buffers_fops_trace
detailed listing:
executing program 0:
openat$auto_tracing_buffers_fops_trace(0xffffffffffffff9c, &(0x7f0000000240)='/sys/kernel/tracing/per_cpu/cpu0/trace_pipe_raw\x00', 0x1000, 0x0)

program did not crash
testing program (duration=59.700280054s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto_tracing_buffers_fops_trace
detailed listing:
executing program 0:
mmap$auto_tracing_buffers_fops_trace(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x2000000, 0x11, 0xffffffffffffffff, 0x400000)

program did not crash
testing program (duration=59.700280054s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_tracing_buffers_fops_trace-mmap$auto_tracing_buffers_fops_trace
detailed listing:
executing program 0:
r0 = openat$auto_tracing_buffers_fops_trace(0xffffffffffffff9c, 0x0, 0x1000, 0x0)
mmap$auto_tracing_buffers_fops_trace(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x2000000, 0x11, r0, 0x400000)

program did not crash
extracting C reproducer
testing compiled C program (duration=59.700280054s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_tracing_buffers_fops_trace-mmap$auto_tracing_buffers_fops_trace
program crashed: kernel BUG in ring_buffer_map
a never seen crash title: kernel BUG in ring_buffer_map, ignore
simplifying guilty program options
testing program (duration=59.700280054s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_tracing_buffers_fops_trace-mmap$auto_tracing_buffers_fops_trace
detailed listing:
executing program 0:
r0 = openat$auto_tracing_buffers_fops_trace(0xffffffffffffff9c, &(0x7f0000000240)='/sys/kernel/tracing/per_cpu/cpu0/trace_pipe_raw\x00', 0x1000, 0x0)
mmap$auto_tracing_buffers_fops_trace(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x2000000, 0x11, r0, 0x400000)

program crashed: kernel BUG in ring_buffer_map
a never seen crash title: kernel BUG in ring_buffer_map, ignore
testing program (duration=59.700280054s, {Threaded:true 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_tracing_buffers_fops_trace-mmap$auto_tracing_buffers_fops_trace
detailed listing:
executing program 0:
r0 = openat$auto_tracing_buffers_fops_trace(0xffffffffffffff9c, &(0x7f0000000240)='/sys/kernel/tracing/per_cpu/cpu0/trace_pipe_raw\x00', 0x1000, 0x0)
mmap$auto_tracing_buffers_fops_trace(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x2000000, 0x11, r0, 0x400000)

program crashed: KASAN: use-after-free Read in ring_buffer_map
a never seen crash title: KASAN: use-after-free Read in ring_buffer_map, ignore
testing program (duration=59.700280054s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_tracing_buffers_fops_trace-mmap$auto_tracing_buffers_fops_trace
detailed listing:
executing program 0:
r0 = openat$auto_tracing_buffers_fops_trace(0xffffffffffffff9c, &(0x7f0000000240)='/sys/kernel/tracing/per_cpu/cpu0/trace_pipe_raw\x00', 0x1000, 0x0)
mmap$auto_tracing_buffers_fops_trace(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x2000000, 0x11, r0, 0x400000)

program crashed: KASAN: use-after-free Read in ring_buffer_map
a never seen crash title: KASAN: use-after-free Read in ring_buffer_map, ignore
reproducing took 11m39.102037795s
repro crashed as (corrupted=false):
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6015 at kernel/trace/ring_buffer.c:7061 __rb_map_vma+0x881/0xae0 kernel/trace/ring_buffer.c:7061
Modules linked in:
CPU: 1 UID: 0 PID: 6015 Comm: syz.1.17 Not tainted 6.13.0-rc3-syzkaller-00026-g59dbb9d81adf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:__rb_map_vma+0x881/0xae0 kernel/trace/ring_buffer.c:7061
Code: 04 25 28 00 00 00 0f 85 11 02 00 00 48 81 c4 b0 00 00 00 89 d8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 40 7c fd ff 90 <0f> 0b 90 bb ea ff ff ff eb 96 e8 30 7c fd ff 48 8b 44 24 20 be ff
RSP: 0018:ffffc90002f87790 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00000000000003ff RCX: ffffffff819bd00b
RDX: ffff888060a68000 RSI: ffffffff819bd2b0 RDI: 0000000000000006
RBP: ffff88802bd3d7b8 R08: 0000000000000006 R09: 00000000000003ff
R10: 0000000000000003 R11: ffffffff81fb8dda R12: ffffea000030b580
R13: ffff888026dd36e8 R14: 0000000000000003 R15: 0000000000000001
FS:  00007f6c493ad6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e65ffff CR3: 000000002724a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ring_buffer_map+0x56e/0x9b0 kernel/trace/ring_buffer.c:7138
 tracing_buffers_mmap+0xa6/0x120 kernel/trace/trace.c:8482
 call_mmap include/linux/fs.h:2183 [inline]
 mmap_file mm/internal.h:124 [inline]
 __mmap_new_file_vma mm/vma.c:2291 [inline]
 __mmap_new_vma mm/vma.c:2355 [inline]
 __mmap_region+0x1786/0x2670 mm/vma.c:2456
 mmap_region+0x127/0x320 mm/mmap.c:1348
 do_mmap+0xc00/0xfc0 mm/mmap.c:496
 vm_mmap_pgoff+0x1ba/0x360 mm/util.c:580
 ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]
 __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6c48585d29
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:00007f6c493ad038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f6c48775fa0 RCX: 00007f6c48585d29
RDX: 0000000002000000 RSI: 0000000000004000 RDI: 0000000020ffc000
RBP: 00007f6c48601a20 R08: 0000000000000003 R09: 0000000000400000
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6c48775fa0 R15: 00007ffeb18908f8
 </TASK>

final repro crashed as (corrupted=false):
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6015 at kernel/trace/ring_buffer.c:7061 __rb_map_vma+0x881/0xae0 kernel/trace/ring_buffer.c:7061
Modules linked in:
CPU: 1 UID: 0 PID: 6015 Comm: syz.1.17 Not tainted 6.13.0-rc3-syzkaller-00026-g59dbb9d81adf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:__rb_map_vma+0x881/0xae0 kernel/trace/ring_buffer.c:7061
Code: 04 25 28 00 00 00 0f 85 11 02 00 00 48 81 c4 b0 00 00 00 89 d8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 40 7c fd ff 90 <0f> 0b 90 bb ea ff ff ff eb 96 e8 30 7c fd ff 48 8b 44 24 20 be ff
RSP: 0018:ffffc90002f87790 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00000000000003ff RCX: ffffffff819bd00b
RDX: ffff888060a68000 RSI: ffffffff819bd2b0 RDI: 0000000000000006
RBP: ffff88802bd3d7b8 R08: 0000000000000006 R09: 00000000000003ff
R10: 0000000000000003 R11: ffffffff81fb8dda R12: ffffea000030b580
R13: ffff888026dd36e8 R14: 0000000000000003 R15: 0000000000000001
FS:  00007f6c493ad6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e65ffff CR3: 000000002724a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ring_buffer_map+0x56e/0x9b0 kernel/trace/ring_buffer.c:7138
 tracing_buffers_mmap+0xa6/0x120 kernel/trace/trace.c:8482
 call_mmap include/linux/fs.h:2183 [inline]
 mmap_file mm/internal.h:124 [inline]
 __mmap_new_file_vma mm/vma.c:2291 [inline]
 __mmap_new_vma mm/vma.c:2355 [inline]
 __mmap_region+0x1786/0x2670 mm/vma.c:2456
 mmap_region+0x127/0x320 mm/mmap.c:1348
 do_mmap+0xc00/0xfc0 mm/mmap.c:496
 vm_mmap_pgoff+0x1ba/0x360 mm/util.c:580
 ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]
 __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6c48585d29
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:00007f6c493ad038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f6c48775fa0 RCX: 00007f6c48585d29
RDX: 0000000002000000 RSI: 0000000000004000 RDI: 0000000020ffc000
RBP: 00007f6c48601a20 R08: 0000000000000003 R09: 0000000000400000
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6c48775fa0 R15: 00007ffeb18908f8
 </TASK>