Extracting prog: 1m16.356740279s
Minimizing prog: 5m37.73467029s
Simplifying prog options: 0s
Extracting C: 30.790336169s
Simplifying C: 9m12.294974034s


extracting reproducer from 44 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
detailed listing:
executing program 0:
bpf$PROG_LOAD(0x5, &(0x7f00000054c0)={0x16, 0x16, &(0x7f00000004c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @flow_dissector}, 0x48)

program crashed: WARNING in convert_ctx_accesses
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
testing program (duration=45.380690533s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
detailed listing:
executing program 0:
bpf$PROG_LOAD(0x5, 0x0, 0x0)

program did not crash
testing program (duration=45.380690533s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
detailed listing:
executing program 0:
bpf$PROG_LOAD(0x5, &(0x7f00000054c0)={0x16, 0x16, 0x0, &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @flow_dissector}, 0x94)

program did not crash
testing program (duration=45.380690533s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
detailed listing:
executing program 0:
bpf$PROG_LOAD(0x5, &(0x7f00000054c0)={0x16, 0x16, &(0x7f00000004c0)=ANY=[@ANYBLOB], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @flow_dissector}, 0x94)

program did not crash
testing program (duration=45.380690533s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
detailed listing:
executing program 0:
bpf$PROG_LOAD(0x5, &(0x7f00000054c0)={0x16, 0x16, &(0x7f00000004c0)=ANY=[@ANYBLOB="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"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @flow_dissector}, 0x94)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.380690533s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
program crashed: WARNING in convert_ctx_accesses
simplifying C reproducer
testing compiled C program (duration=45.380690533s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
program crashed: WARNING in convert_ctx_accesses
testing compiled C program (duration=45.380690533s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
program crashed: WARNING in convert_ctx_accesses
testing compiled C program (duration=45.380690533s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
program crashed: WARNING in convert_ctx_accesses
testing compiled C program (duration=45.380690533s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
program crashed: WARNING in convert_ctx_accesses
testing compiled C program (duration=45.380690533s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
program crashed: WARNING in convert_ctx_accesses
testing compiled C program (duration=45.380690533s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
program crashed: WARNING in convert_ctx_accesses
testing compiled C program (duration=45.380690533s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
program crashed: WARNING in convert_ctx_accesses
testing program (duration=45.380690533s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
detailed listing:
executing program 0:
bpf$PROG_LOAD(0x5, &(0x7f00000054c0)={0x16, 0x16, &(0x7f00000004c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @flow_dissector}, 0x48)

program crashed: WARNING in convert_ctx_accesses
validation run: crashed=true
testing program (duration=45.380690533s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
detailed listing:
executing program 0:
bpf$PROG_LOAD(0x5, &(0x7f00000054c0)={0x16, 0x16, &(0x7f00000004c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @flow_dissector}, 0x48)

program crashed: WARNING in convert_ctx_accesses
validation run: crashed=true
testing program (duration=45.380690533s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD
detailed listing:
executing program 0:
bpf$PROG_LOAD(0x5, &(0x7f00000054c0)={0x16, 0x16, &(0x7f00000004c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @flow_dissector}, 0x48)

program crashed: WARNING in convert_ctx_accesses
validation run: crashed=true
reproducing took 20m31.849344582s
repro crashed as (corrupted=false):
------------[ cut here ]------------
verifier bug: error during ctx access conversion(1)
WARNING: CPU: 0 PID: 6011 at kernel/bpf/verifier.c:21448 convert_ctx_accesses+0x2045/0x2920 kernel/bpf/verifier.c:21448
Modules linked in:
CPU: 0 UID: 0 PID: 6011 Comm: syz.0.16 Not tainted 6.16.0-syzkaller-06699-ge8d780dcd957 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:convert_ctx_accesses+0x2045/0x2920 kernel/bpf/verifier.c:21448
Code: c7 c6 a0 95 b5 8b e8 ea a5 07 00 e9 a4 f9 ff ff e8 50 6c e8 ff c6 05 16 03 bd 0e 01 90 48 c7 c7 00 96 b5 8b e8 6c 02 a7 ff 90 <0f> 0b 90 90 e9 f1 fe ff ff e8 2d 6c e8 ff 0f b6 1d f6 02 bd 0e 31
RSP: 0018:ffffc90003d1f6e8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817a3658
RDX: ffff88807a4b4880 RSI: ffffffff817a3665 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: ffffc90000aae048 R14: 0000000000000004 R15: ffff888036168000
FS:  000055555680d500(0000) GS:ffff88812471e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f69844a27d0 CR3: 000000007cdb5000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 bpf_check+0x5960/0xc600 kernel/bpf/verifier.c:24736
 bpf_prog_load+0xe41/0x2490 kernel/bpf/syscall.c:2972
 __sys_bpf+0x4a3f/0x4de0 kernel/bpf/syscall.c:6022
 __do_sys_bpf kernel/bpf/syscall.c:6132 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:6130 [inline]
 __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:6130
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f10d858e9a9
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:00007ffead341378 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f10d87b5fa0 RCX: 00007f10d858e9a9
RDX: 0000000000000048 RSI: 00002000000054c0 RDI: 0000000000000005
RBP: 00007f10d8610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f10d87b5fa0 R14: 00007f10d87b5fa0 R15: 0000000000000003
 </TASK>

final repro crashed as (corrupted=false):
------------[ cut here ]------------
verifier bug: error during ctx access conversion(1)
WARNING: CPU: 0 PID: 6011 at kernel/bpf/verifier.c:21448 convert_ctx_accesses+0x2045/0x2920 kernel/bpf/verifier.c:21448
Modules linked in:
CPU: 0 UID: 0 PID: 6011 Comm: syz.0.16 Not tainted 6.16.0-syzkaller-06699-ge8d780dcd957 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:convert_ctx_accesses+0x2045/0x2920 kernel/bpf/verifier.c:21448
Code: c7 c6 a0 95 b5 8b e8 ea a5 07 00 e9 a4 f9 ff ff e8 50 6c e8 ff c6 05 16 03 bd 0e 01 90 48 c7 c7 00 96 b5 8b e8 6c 02 a7 ff 90 <0f> 0b 90 90 e9 f1 fe ff ff e8 2d 6c e8 ff 0f b6 1d f6 02 bd 0e 31
RSP: 0018:ffffc90003d1f6e8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817a3658
RDX: ffff88807a4b4880 RSI: ffffffff817a3665 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: ffffc90000aae048 R14: 0000000000000004 R15: ffff888036168000
FS:  000055555680d500(0000) GS:ffff88812471e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f69844a27d0 CR3: 000000007cdb5000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 bpf_check+0x5960/0xc600 kernel/bpf/verifier.c:24736
 bpf_prog_load+0xe41/0x2490 kernel/bpf/syscall.c:2972
 __sys_bpf+0x4a3f/0x4de0 kernel/bpf/syscall.c:6022
 __do_sys_bpf kernel/bpf/syscall.c:6132 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:6130 [inline]
 __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:6130
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f10d858e9a9
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:00007ffead341378 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f10d87b5fa0 RCX: 00007f10d858e9a9
RDX: 0000000000000048 RSI: 00002000000054c0 RDI: 0000000000000005
RBP: 00007f10d8610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f10d87b5fa0 R14: 00007f10d87b5fa0 R15: 0000000000000003
 </TASK>