RUST PANIC: CPU: 1 PID: 456 at drivers/android/binder/node.rs:877
Kernel panic - not syncing: attempt to subtract with overflow
CPU: 1 UID: 0 PID: 456 Comm: syz.2.16 Not tainted 6.12.23-syzkaller-08449-gf9fbc66f8444-dirty #0 0edd2ae16b47c413d0017121c21a76294fed1afc
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x7b/0x190 lib/dump_stack.c:120
 dump_stack+0x19/0x20 lib/dump_stack.c:129
 panic+0x297/0x700 kernel/panic.c:354
 rust_panic+0xc0/0xf0 kernel/panic.c:817
 __rustc::rust_begin_unwind+0x2be/0x330 rust/kernel/lib.rs:140
 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_sub_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
 <rust_binder::node::NodeRef>::update drivers/android/binder/node.rs:877 [inline]
 <rust_binder::process::Process>::update_ref+0x17e5/0x1860 drivers/android/binder/process.rs:913
 <rust_binder::thread::Thread>::write drivers/android/binder/thread.rs:1470 [inline]
 <rust_binder::thread::Thread>::write_read+0x278d/0x9d20 drivers/android/binder/thread.rs:1581
 <rust_binder::process::Process>::ioctl_write_read drivers/android/binder/process.rs:1535 [inline]
 <rust_binder::process::Process>::ioctl+0x411/0x2c20 drivers/android/binder/process.rs:1596
 rust_binder::rust_binder_unlocked_ioctl+0xa0/0x100 drivers/android/binder/rust_binder.rs:445
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0x132/0x1b0 fs/ioctl.c:893
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:893
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 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: 0033:0x7f1c49f8e929
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:00007f1c4ad94038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1c4a1b5fa0 RCX: 00007f1c49f8e929
RDX: 0000200000000480 RSI: 00000000c0306201 RDI: 0000000000000004
RBP: 00007f1c4a010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c4a1b5fa0 R15: 00007fff6ca27fd8
 </TASK>
Kernel Offset: disabled