Extracting prog: 1m17.445854558s
Minimizing prog: 10m56.225267609s
Simplifying prog options: 0s
Extracting C: 1m25.888063419s
Simplifying C: 6m55.457044423s


extracting reproducer from 25 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-ioctl$ASHMEM_SET_SIZE-ioctl$KVM_SET_MSRS-ioctl$ASHMEM_SET_NAME-mmap
detailed listing:
executing program 0:
r0 = openat$ashmem(0xffffffffffffff9c, &(0x7f0000000500), 0x0, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xfffffffe)
r1 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r2 = ioctl$KVM_CREATE_VM(r1, 0xae01, 0x0)
r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xffffffffffffff00)
ioctl$KVM_SET_MSRS(r3, 0x4008ae89, &(0x7f00000000c0)={0x1, 0x0, [{0x400000f1}]})
ioctl$ASHMEM_SET_NAME(r0, 0x41007701, &(0x7f0000000000)=')}%!:\xb9+\x00')
mmap(&(0x7f0000701000/0x1000)=nil, 0x1000, 0x0, 0x12, r0, 0x0)

program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
single: successfully extracted reproducer
found reproducer with 9 syscalls
minimizing guilty program
testing program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-ioctl$ASHMEM_SET_SIZE-ioctl$KVM_SET_MSRS-ioctl$ASHMEM_SET_NAME
detailed listing:
executing program 0:
r0 = openat$ashmem(0xffffffffffffff9c, &(0x7f0000000500), 0x0, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xfffffffe)
r1 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r2 = ioctl$KVM_CREATE_VM(r1, 0xae01, 0x0)
r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xffffffffffffff00)
ioctl$KVM_SET_MSRS(r3, 0x4008ae89, &(0x7f00000000c0)={0x1, 0x0, [{0x400000f1}]})
ioctl$ASHMEM_SET_NAME(r0, 0x41007701, &(0x7f0000000000)=')}%!:\xb9+\x00')

program did not crash
testing program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-ioctl$ASHMEM_SET_SIZE-ioctl$KVM_SET_MSRS-mmap
detailed listing:
executing program 0:
r0 = openat$ashmem(0xffffffffffffff9c, &(0x7f0000000500), 0x0, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xfffffffe)
r1 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r2 = ioctl$KVM_CREATE_VM(r1, 0xae01, 0x0)
r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xffffffffffffff00)
ioctl$KVM_SET_MSRS(r3, 0x4008ae89, &(0x7f00000000c0)={0x1, 0x0, [{0x400000f1}]})
mmap(&(0x7f0000701000/0x1000)=nil, 0x1000, 0x0, 0x12, r0, 0x0)

program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
testing program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-ioctl$ASHMEM_SET_SIZE-mmap
detailed listing:
executing program 0:
r0 = openat$ashmem(0xffffffffffffff9c, &(0x7f0000000500), 0x0, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xfffffffe)
r1 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r2 = ioctl$KVM_CREATE_VM(r1, 0xae01, 0x0)
ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xffffffffffffff00)
mmap(&(0x7f0000701000/0x1000)=nil, 0x1000, 0x0, 0x12, r0, 0x0)

program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
testing program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-mmap
detailed listing:
executing program 0:
r0 = openat$ashmem(0xffffffffffffff9c, &(0x7f0000000500), 0x0, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xfffffffe)
r1 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r2 = ioctl$KVM_CREATE_VM(r1, 0xae01, 0x0)
ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
mmap(&(0x7f0000701000/0x1000)=nil, 0x1000, 0x0, 0x12, r0, 0x0)

program did not crash
testing program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$ASHMEM_SET_SIZE-mmap
detailed listing:
executing program 0:
r0 = openat$ashmem(0xffffffffffffff9c, &(0x7f0000000500), 0x0, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xfffffffe)
r1 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$KVM_CREATE_VM(r1, 0xae01, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xffffffffffffff00)
mmap(&(0x7f0000701000/0x1000)=nil, 0x1000, 0x0, 0x12, r0, 0x0)

program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
testing program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-openat$kvm-ioctl$ASHMEM_SET_SIZE-mmap
detailed listing:
executing program 0:
r0 = openat$ashmem(0xffffffffffffff9c, &(0x7f0000000500), 0x0, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xfffffffe)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xffffffffffffff00)
mmap(&(0x7f0000701000/0x1000)=nil, 0x1000, 0x0, 0x12, r0, 0x0)

program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
testing program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-ioctl$ASHMEM_SET_SIZE-mmap
detailed listing:
executing program 0:
r0 = openat$ashmem(0xffffffffffffff9c, &(0x7f0000000500), 0x0, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xfffffffe)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xffffffffffffff00)
mmap(&(0x7f0000701000/0x1000)=nil, 0x1000, 0x0, 0x12, r0, 0x0)

program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
testing program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-mmap
detailed listing:
executing program 0:
r0 = openat$ashmem(0xffffffffffffff9c, &(0x7f0000000500), 0x0, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xffffffffffffff00)
mmap(&(0x7f0000701000/0x1000)=nil, 0x1000, 0x0, 0x12, r0, 0x0)

program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
testing program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$ASHMEM_SET_SIZE-mmap
detailed listing:
executing program 0:
ioctl$ASHMEM_SET_SIZE(0xffffffffffffffff, 0x40087703, 0xffffffffffffff00)
mmap(&(0x7f0000701000/0x1000)=nil, 0x1000, 0x0, 0x12, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-mmap
detailed listing:
executing program 0:
r0 = openat$ashmem(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0xffffffffffffff00)
mmap(&(0x7f0000701000/0x1000)=nil, 0x1000, 0x0, 0x12, r0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-mmap
program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
simplifying C reproducer
testing compiled C program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-mmap
program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
testing compiled C program (duration=31.496410258s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-mmap
program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
testing compiled C program (duration=31.496410258s, {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}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-mmap
program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
testing compiled C program (duration=31.496410258s, {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}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-mmap
program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
testing compiled C program (duration=31.496410258s, {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}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-mmap
program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
testing compiled C program (duration=31.496410258s, {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}}): openat$ashmem-ioctl$ASHMEM_SET_SIZE-mmap
program crashed: attempt to add with overflow in <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap
reproducing took 20m35.01626089s
repro crashed as (corrupted=false):
rust_kernel: panicked at /syzkaller/managers/ci2-android-6-12-rust/kernel/rust/kernel/page_size_compat.rs:60:5:
attempt to add with overflow
------------[ cut here ]------------
kernel BUG at rust/helpers/bug.c:7!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 289 Comm: syz-executor248 Not tainted 6.12.23-syzkaller-g6c1c18fcb8b7 #0 ba78288b1e32eb9f88d3f8d8da6b79a037cd8362
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:rust_helper_BUG+0x8/0x10 rust/helpers/bug.c:7
Code: cc cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 0b 90 ab d2 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 <0f> 0b 66 0f 1f 44 00 00 b8 41 54 e2 5e 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900011ef3f0 EFLAGS: 00010246
RAX: 000000000000008c RBX: 1ffff9200023de80 RCX: 07b031c7482df700
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc900011ef3f0 R08: ffffc900011ef0e7 R09: 1ffff9200023de1c
R10: dffffc0000000000 R11: fffff5200023de1d R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc900011ef420 R15: ffffc900011ef450
FS:  0000555575b71380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000500 CR3: 00000001006d6000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __rustc::rust_begin_unwind+0x15b/0x160 rust/kernel/lib.rs:128
 core::panicking::panic_fmt+0x84/0x90 usr/local/rustup/toolchains/1.87.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/panicking.rs:75
 core::panicking::panic_const::panic_const_add_overflow+0xb2/0xc0 usr/local/rustup/toolchains/1.87.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/panicking.rs:178
 kernel::page_size_compat::__page_align rust/kernel/page_size_compat.rs:60 [inline]
 <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap+0xe44/0xfb0 drivers/staging/android/ashmem_rust.rs:165
 call_mmap include/linux/fs.h:2188 [inline]
 mmap_file mm/internal.h:124 [inline]
 __mmap_region mm/mmap.c:1471 [inline]
 mmap_region+0x1371/0x1bd0 mm/mmap.c:1634
 do_mmap+0xb6d/0x13c0 mm/mmap.c:508
 vm_mmap_pgoff+0x38f/0x4e0 mm/util.c:594
 ksys_mmap_pgoff+0x166/0x1e0 mm/mmap.c:557
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline]
 __x64_sys_mmap+0x121/0x140 arch/x86/kernel/sys_x86_64.c:79
 x64_sys_call+0x13bf/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:10
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f6d74642329
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff9cc6f958 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fff9cc6fb38 RCX: 00007f6d74642329
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000200000701000
RBP: 00007f6d746b5610 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff9cc6fb28 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rust_helper_BUG+0x8/0x10 rust/helpers/bug.c:7
Code: cc cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 0b 90 ab d2 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 <0f> 0b 66 0f 1f 44 00 00 b8 41 54 e2 5e 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900011ef3f0 EFLAGS: 00010246
RAX: 000000000000008c RBX: 1ffff9200023de80 RCX: 07b031c7482df700
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc900011ef3f0 R08: ffffc900011ef0e7 R09: 1ffff9200023de1c
R10: dffffc0000000000 R11: fffff5200023de1d R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc900011ef420 R15: ffffc900011ef450
FS:  0000555575b71380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000500 CR3: 00000001006d6000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

final repro crashed as (corrupted=false):
rust_kernel: panicked at /syzkaller/managers/ci2-android-6-12-rust/kernel/rust/kernel/page_size_compat.rs:60:5:
attempt to add with overflow
------------[ cut here ]------------
kernel BUG at rust/helpers/bug.c:7!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 289 Comm: syz-executor248 Not tainted 6.12.23-syzkaller-g6c1c18fcb8b7 #0 ba78288b1e32eb9f88d3f8d8da6b79a037cd8362
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:rust_helper_BUG+0x8/0x10 rust/helpers/bug.c:7
Code: cc cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 0b 90 ab d2 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 <0f> 0b 66 0f 1f 44 00 00 b8 41 54 e2 5e 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900011ef3f0 EFLAGS: 00010246
RAX: 000000000000008c RBX: 1ffff9200023de80 RCX: 07b031c7482df700
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc900011ef3f0 R08: ffffc900011ef0e7 R09: 1ffff9200023de1c
R10: dffffc0000000000 R11: fffff5200023de1d R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc900011ef420 R15: ffffc900011ef450
FS:  0000555575b71380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000500 CR3: 00000001006d6000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __rustc::rust_begin_unwind+0x15b/0x160 rust/kernel/lib.rs:128
 core::panicking::panic_fmt+0x84/0x90 usr/local/rustup/toolchains/1.87.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/panicking.rs:75
 core::panicking::panic_const::panic_const_add_overflow+0xb2/0xc0 usr/local/rustup/toolchains/1.87.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/panicking.rs:178
 kernel::page_size_compat::__page_align rust/kernel/page_size_compat.rs:60 [inline]
 <ashmem_rust::Ashmem as kernel::miscdevice::MiscDevice>::mmap+0xe44/0xfb0 drivers/staging/android/ashmem_rust.rs:165
 call_mmap include/linux/fs.h:2188 [inline]
 mmap_file mm/internal.h:124 [inline]
 __mmap_region mm/mmap.c:1471 [inline]
 mmap_region+0x1371/0x1bd0 mm/mmap.c:1634
 do_mmap+0xb6d/0x13c0 mm/mmap.c:508
 vm_mmap_pgoff+0x38f/0x4e0 mm/util.c:594
 ksys_mmap_pgoff+0x166/0x1e0 mm/mmap.c:557
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline]
 __x64_sys_mmap+0x121/0x140 arch/x86/kernel/sys_x86_64.c:79
 x64_sys_call+0x13bf/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:10
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f6d74642329
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff9cc6f958 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fff9cc6fb38 RCX: 00007f6d74642329
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000200000701000
RBP: 00007f6d746b5610 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff9cc6fb28 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rust_helper_BUG+0x8/0x10 rust/helpers/bug.c:7
Code: cc cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 0b 90 ab d2 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 <0f> 0b 66 0f 1f 44 00 00 b8 41 54 e2 5e 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900011ef3f0 EFLAGS: 00010246
RAX: 000000000000008c RBX: 1ffff9200023de80 RCX: 07b031c7482df700
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc900011ef3f0 R08: ffffc900011ef0e7 R09: 1ffff9200023de1c
R10: dffffc0000000000 R11: fffff5200023de1d R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc900011ef420 R15: ffffc900011ef450
FS:  0000555575b71380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000500 CR3: 00000001006d6000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400