BUG: TASK stack guard page was hit at ffffc9000db7fff8 (stack is ffffc9000db80000..ffffc9000db88000)
Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 430 Comm: syz.3.39 Not tainted syzkaller #0 4629476e74998a42e0eeb731ff095178aeeee8c1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__asan_memset+0x8/0x50 mm/kasan/shadow.c:83
Code: ba 01 00 00 00 e8 68 e4 ff ff 5d e9 52 b6 c3 03 cc 90 b8 26 7d a8 24 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 <41> 57 41 56 53 48 89 d3 41 89 f6 49 89 ff 48 8b 4d 08 48 89 d6 ba
RSP: 0018:ffffc9000db80000 EFLAGS: 00010246
RAX: ffff888115ba1300 RBX: ffffc9000db80088 RCX: ffffc9000db80110
RDX: 0000000000000060 RSI: 0000000000000000 RDI: ffffc9000db80088
RBP: ffffc9000db80000 R08: dffffc0000000000 R09: 0000000000000000
R10: ffffc9000db801c0 R11: fffff52001b700a4 R12: 0000000000000000
R13: 0000000000000010 R14: dffffc0000000000 R15: ffff888115ba1300
FS:  00007fafdf4c86c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000db7fff8 CR3: 0000000133dd8000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 __unwind_start+0x38/0x410 arch/x86/kernel/unwind_frame.c:378
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0xf2/0x170 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_alloc_info+0x40/0x50 mm/kasan/generic.c:565
 poison_kmalloc_redzone mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x96/0xb0 mm/kasan/common.c:396
 kasan_kmalloc include/linux/kasan.h:261 [inline]
 __kmalloc_cache_noprof+0x23c/0x470 mm/slub.c:4426
 kmalloc_noprof include/linux/slab.h:881 [inline]
 add_stack_record_to_list mm/page_owner.c:190 [inline]
 inc_stack_record_count mm/page_owner.c:232 [inline]
 __set_page_owner+0x2af/0x600 mm/page_owner.c:347
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook+0x3b8/0x3f0 mm/page_alloc.c:1864
 prep_new_page+0x20/0x120 mm/page_alloc.c:1872
 get_page_from_freelist+0x496e/0x4a20 mm/page_alloc.c:3948
 __alloc_pages_noprof+0x35f/0x7e0 mm/page_alloc.c:5298
 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
 alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
 alloc_pages_noprof include/linux/gfp.h:313 [inline]
 stack_depot_save_flags+0x672/0x800 lib/stackdepot.c:627
 kasan_save_stack mm/kasan/common.c:50 [inline]
 kasan_save_track+0x4f/0x80 mm/kasan/common.c:70
 kasan_save_free_info+0x4a/0x60 mm/kasan/generic.c:579
 poison_slab_object mm/kasan/common.c:249 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:266
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2445 [inline]
 slab_free mm/slub.c:4714 [inline]
 kfree+0x158/0x440 mm/slub.c:4875
 krealloc_noprof+0xfa/0x130 mm/slab_common.c:-1
 <kernel::alloc::allocator::ReallocFunc>::call rust/kernel/alloc/allocator.rs:102 [inline]
 <kernel::alloc::allocator::Kmalloc as kernel::alloc::Allocator>::realloc rust/kernel/alloc/allocator.rs:141 [inline]
 <kernel::alloc::allocator::Kmalloc as kernel::alloc::Allocator>::free rust/kernel/alloc.rs:214 [inline]
 <kernel::alloc::kbox::Box<core::mem::maybe_uninit::MaybeUninit<kernel::rbtree::Node<u32, kernel::list::arc::ListArc<rust_binder_main::process::NodeRefInfo, 15493408726748792400>>>, kernel::alloc::allocator::Kmalloc> as core::ops::drop::Drop>::drop rust/kernel/alloc/kbox.rs:492 [inline]
 core::ptr::drop_in_place::<kernel::alloc::kbox::Box<core::mem::maybe_uninit::MaybeUninit<kernel::rbtree::Node<u32, kernel::list::arc::ListArc<rust_binder_main::process::NodeRefInfo, 15493408726748792400>>>, kernel::alloc::allocator::Kmalloc>>+0x114/0x360 usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:804
 <kernel::alloc::kbox::Box<kernel::rbtree::Node<u32, kernel::list::arc::ListArc<rust_binder_main::process::NodeRefInfo, 15493408726748792400>>, kernel::alloc::allocator::Kmalloc>>::into_inner rust/kernel/alloc/kbox.rs:321 [inline]
 <kernel::rbtree::OccupiedEntry<u32, kernel::list::arc::ListArc<rust_binder_main::process::NodeRefInfo, 15493408726748792400>>>::remove rust/kernel/rbtree.rs:1251 [inline]
 <<kernel::rbtree::OccupiedEntry<u32, kernel::list::arc::ListArc<rust_binder_main::process::NodeRefInfo, 15493408726748792400>>>::remove as core::ops::function::FnOnce<(kernel::rbtree::OccupiedEntry<u32, kernel::list::arc::ListArc<rust_binder_main::process::NodeRefInfo, 15493408726748792400>>,)>>::call_once usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:250 [inline]
 <core::option::Option<kernel::rbtree::OccupiedEntry<u32, kernel::list::arc::ListArc<rust_binder_main::process::NodeRefInfo, 15493408726748792400>>>>::map::<kernel::list::arc::ListArc<rust_binder_main::process::NodeRefInfo, 15493408726748792400>, <kernel::rbtree::OccupiedEntry<u32, kernel::list::arc::ListArc<rust_binder_main::process::NodeRefInfo, 15493408726748792400>>>::remove> usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/option.rs:1159 [inline]
 <kernel::rbtree::RBTree<u32, kernel::list::arc::ListArc<rust_binder_main::process::NodeRefInfo, 15493408726748792400>>>::remove rust/kernel/rbtree.rs:410 [inline]
 <rust_binder_main::process::Process>::update_ref+0x16c0/0x2660 drivers/android/binder/process.rs:974
 <rust_binder_main::allocation::AllocationView>::cleanup_object drivers/android/binder/allocation.rs:445 [inline]
 <rust_binder_main::allocation::Allocation as core::ops::drop::Drop>::drop+0x16ed/0x5c60 drivers/android/binder/allocation.rs:258
 core::ptr::drop_in_place::<rust_binder_main::allocation::Allocation>+0x1a/0xf0 usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:804
 core::ptr::drop_in_place::<rust_binder_main::allocation::NewAllocation> usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:804 [inline]
 <rust_binder_main::thread::Thread>::copy_transaction_data+0x7a55/0x9130 drivers/android/binder/thread.rs:1238
 <rust_binder_main::transaction::Transaction>::new+0x3c7/0x2810 drivers/android/binder/transaction.rs:85
 <rust_binder_main::thread::Thread>::transaction_inner drivers/android/binder/thread.rs:1358 [inline]
 <<rust_binder_main::thread::Thread>::transaction_inner as core::ops::function::FnOnce<(&kernel::sync::arc::Arc<rust_binder_main::thread::Thread>, &rust_binder_main::defs::BinderTransactionDataSg)>>::call_once usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:250 [inline]
 <rust_binder_main::thread::Thread>::transaction::<<rust_binder_main::thread::Thread>::transaction_inner>+0xb22/0x1290 drivers/android/binder/thread.rs:1333
 <rust_binder_main::thread::Thread>::write+0x15b0/0xaf80 drivers/android/binder/thread.rs:1472
 <rust_binder_main::thread::Thread>::write_read drivers/android/binder/thread.rs:1620 [inline]
 <rust_binder_main::process::Process>::ioctl_write_read drivers/android/binder/process.rs:1616 [inline]
 <rust_binder_main::process::Process>::ioctl drivers/android/binder/process.rs:1681 [inline]
 rust_binder_main::rust_binder_ioctl+0x1192/0x5c20 drivers/android/binder/rust_binder_main.rs:460
 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:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fafde59c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fafdf4c8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fafde815fa0 RCX: 00007fafde59c819
RDX: 00002000000001c0 RSI: 00000000c0306201 RDI: 0000000000000006
RBP: 00007fafde632c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fafde816038 R14: 00007fafde815fa0 R15: 00007ffe6e39cb58
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__asan_memset+0x8/0x50 mm/kasan/shadow.c:83
Code: ba 01 00 00 00 e8 68 e4 ff ff 5d e9 52 b6 c3 03 cc 90 b8 26 7d a8 24 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 <41> 57 41 56 53 48 89 d3 41 89 f6 49 89 ff 48 8b 4d 08 48 89 d6 ba
RSP: 0018:ffffc9000db80000 EFLAGS: 00010246
RAX: ffff888115ba1300 RBX: ffffc9000db80088 RCX: ffffc9000db80110
RDX: 0000000000000060 RSI: 0000000000000000 RDI: ffffc9000db80088
RBP: ffffc9000db80000 R08: dffffc0000000000 R09: 0000000000000000
R10: ffffc9000db801c0 R11: fffff52001b700a4 R12: 0000000000000000
R13: 0000000000000010 R14: dffffc0000000000 R15: ffff888115ba1300
FS:  00007fafdf4c86c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000db7fff8 CR3: 0000000133dd8000 CR4: 00000000003526b0
----------------
Code disassembly (best guess):
   0:	ba 01 00 00 00       	mov    $0x1,%edx
   5:	e8 68 e4 ff ff       	call   0xffffe472
   a:	5d                   	pop    %rbp
   b:	e9 52 b6 c3 03       	jmp    0x3c3b662
  10:	cc                   	int3
  11:	90                   	nop
  12:	b8 26 7d a8 24       	mov    $0x24a87d26,%eax
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	f3 0f 1e fa          	endbr64
  26:	55                   	push   %rbp
  27:	48 89 e5             	mov    %rsp,%rbp
* 2a:	41 57                	push   %r15 <-- trapping instruction
  2c:	41 56                	push   %r14
  2e:	53                   	push   %rbx
  2f:	48 89 d3             	mov    %rdx,%rbx
  32:	41 89 f6             	mov    %esi,%r14d
  35:	49 89 ff             	mov    %rdi,%r15
  38:	48 8b 4d 08          	mov    0x8(%rbp),%rcx
  3c:	48 89 d6             	mov    %rdx,%rsi
  3f:	ba                   	.byte 0xba