BUG: TASK stack guard page was hit at ffffc9000e1b7ff8 (stack is ffffc9000e1b8000..ffffc9000e1c0000)
Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 736 Comm: syz.3.110 Not tainted syzkaller #0 471281939cd7bfdfff4c6b6074d5d68627c837ba
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:update_curr+0xf3/0x9e0 kernel/sched/fair.c:1291
Code: 07 48 89 44 24 40 48 89 5c 24 30 42 c6 44 23 06 01 c6 84 24 b0 00 00 00 00 4d 85 f6 0f 84 fd 04 00 00 48 8b 7c 24 40 4c 89 f6 <e8> b8 40 fe ff 48 85 c0 0f 8e e7 04 00 00 48 89 c3 4c 89 6c 24 50
RSP: 0018:ffffc9000e1b8000 EFLAGS: 00010086
RAX: ffff8881f6f4fa00 RBX: 1ffff92001c37010 RCX: 1ffff92001c37034
RDX: 0000000000000201 RSI: ffff88810df18800 RDI: ffff8881f6f4fa00
RBP: ffffc9000e1b8110 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52001c37066 R12: dffffc0000000000
R13: ffff8881f6f4fc50 R14: ffff88810df18800 R15: ffff8881f6f4fd38
FS:  00007f67a58856c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000e1b7ff8 CR3: 0000000109bec000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 dequeue_entity+0x89/0x1380 kernel/sched/fair.c:5654
 dequeue_entities+0x1d7/0x1400 kernel/sched/fair.c:7313
 pick_next_entity kernel/sched/fair.c:5796 [inline]
 pick_task_fair+0x2ea/0x4e0 kernel/sched/fair.c:9141
 pick_next_task_fair+0xb1/0x770 kernel/sched/fair.c:9163
 __pick_next_task kernel/sched/core.c:6687 [inline]
 pick_next_task kernel/sched/core.c:7207 [inline]
 __schedule+0x753/0x2100 kernel/sched/core.c:7820
 preempt_schedule_irq+0xab/0x110 kernel/sched/core.c:8220
 raw_irqentry_exit_cond_resched+0x32/0x40 kernel/entry/common.c:311
 irqentry_exit+0x4a/0x60 kernel/entry/common.c:354
 sysvec_reschedule_ipi+0x72/0x80 arch/x86/kernel/smp.c:248
 asm_sysvec_reschedule_ipi+0x1f/0x30 arch/x86/include/asm/idtentry.h:707
RIP: 0010:update_stack_state+0x12e/0x4b0 arch/x86/kernel/unwind_frame.c:-1
Code: 8d 73 20 48 89 b5 60 ff ff ff 4c 89 f6 48 c1 ee 03 48 89 b5 40 ff ff ff 48 89 8d 70 ff ff ff 48 c1 e9 03 48 89 8d 48 ff ff ff <48> 89 95 58 ff ff ff 48 c1 ea 03 48 89 95 68 ff ff ff 48 89 45 c0
RSP: 0018:ffffc9000e1b8778 EFLAGS: 00000a06
RAX: ffffc9000e1b88f0 RBX: ffffc9000e1b88c8 RCX: 1ffff92001c3711b
RDX: ffffc9000e1b88e0 RSI: 1ffff92001c3711a RDI: ffffc9000e1b8920
RBP: ffffc9000e1b8838 R08: ffffc9000e1b8990 R09: ffffc9000e1b8988
R10: 0000000000000003 R11: ffffffff8175ee80 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc9000e1b88d0 R15: ffffc9000e1b8cd8
 unwind_next_frame+0x3c1/0x750 arch/x86/kernel/unwind_frame.c:315
 arch_stack_walk+0x138/0x170 arch/x86/kernel/stacktrace.c:25
 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_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::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::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::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::process::NodeRefInfo, 15493408726748792400>>>::remove rust/kernel/rbtree.rs:1251 [inline]
 <<kernel::rbtree::OccupiedEntry<u32, kernel::list::arc::ListArc<rust_binder::process::NodeRefInfo, 15493408726748792400>>>::remove as core::ops::function::FnOnce<(kernel::rbtree::OccupiedEntry<u32, kernel::list::arc::ListArc<rust_binder::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::process::NodeRefInfo, 15493408726748792400>>>>::map::<kernel::list::arc::ListArc<rust_binder::process::NodeRefInfo, 15493408726748792400>, <kernel::rbtree::OccupiedEntry<u32, kernel::list::arc::ListArc<rust_binder::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::process::NodeRefInfo, 15493408726748792400>>>::remove rust/kernel/rbtree.rs:410 [inline]
 <rust_binder::process::Process>::update_ref+0x16c0/0x2660 drivers/android/binder/process.rs:975
 <rust_binder::allocation::AllocationView>::cleanup_object drivers/android/binder/allocation.rs:453 [inline]
 <rust_binder::allocation::Allocation as core::ops::drop::Drop>::drop+0x1715/0x5dd0 drivers/android/binder/allocation.rs:263
 core::ptr::drop_in_place::<rust_binder::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::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::thread::Thread>::copy_transaction_data+0x7c54/0x9460 drivers/android/binder/thread.rs:1240
 <rust_binder::transaction::Transaction>::new+0x3f8/0x29c0 drivers/android/binder/transaction.rs:150
 <rust_binder::thread::Thread>::transaction_inner drivers/android/binder/thread.rs:1440 [inline]
 <rust_binder::thread::Thread>::transaction+0x18f8/0x4380 drivers/android/binder/thread.rs:1393
 <rust_binder::thread::Thread>::write+0x1271/0xa690 drivers/android/binder/thread.rs:1568
 <rust_binder::thread::Thread>::write_read drivers/android/binder/thread.rs:1704 [inline]
 <rust_binder::process::Process>::ioctl_write_read drivers/android/binder/process.rs:1620 [inline]
 <rust_binder::process::Process>::ioctl drivers/android/binder/process.rs:1685 [inline]
 rust_binder::rust_binder_ioctl+0x1231/0x5d80 drivers/android/binder/rust_binder_main.rs:468
 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: 0033:0x7f67a499ce59
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:00007f67a5885028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f67a4c15fa0 RCX: 00007f67a499ce59
RDX: 00002000000001c0 RSI: 00000000c0306201 RDI: 0000000000000003
RBP: 00007f67a4a32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f67a4c16038 R14: 00007f67a4c15fa0 R15: 00007ffcbdf9c438
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:update_curr+0xf3/0x9e0 kernel/sched/fair.c:1291
Code: 07 48 89 44 24 40 48 89 5c 24 30 42 c6 44 23 06 01 c6 84 24 b0 00 00 00 00 4d 85 f6 0f 84 fd 04 00 00 48 8b 7c 24 40 4c 89 f6 <e8> b8 40 fe ff 48 85 c0 0f 8e e7 04 00 00 48 89 c3 4c 89 6c 24 50
RSP: 0018:ffffc9000e1b8000 EFLAGS: 00010086
RAX: ffff8881f6f4fa00 RBX: 1ffff92001c37010 RCX: 1ffff92001c37034
RDX: 0000000000000201 RSI: ffff88810df18800 RDI: ffff8881f6f4fa00
RBP: ffffc9000e1b8110 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52001c37066 R12: dffffc0000000000
R13: ffff8881f6f4fc50 R14: ffff88810df18800 R15: ffff8881f6f4fd38
FS:  00007f67a58856c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000e1b7ff8 CR3: 0000000109bec000 CR4: 00000000003526b0
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	48 89 44 24 40       	mov    %rax,0x40(%rsp)
   5:	48 89 5c 24 30       	mov    %rbx,0x30(%rsp)
   a:	42 c6 44 23 06 01    	movb   $0x1,0x6(%rbx,%r12,1)
  10:	c6 84 24 b0 00 00 00 	movb   $0x0,0xb0(%rsp)
  17:	00
  18:	4d 85 f6             	test   %r14,%r14
  1b:	0f 84 fd 04 00 00    	je     0x51e
  21:	48 8b 7c 24 40       	mov    0x40(%rsp),%rdi
  26:	4c 89 f6             	mov    %r14,%rsi
* 29:	e8 b8 40 fe ff       	call   0xfffe40e6 <-- trapping instruction
  2e:	48 85 c0             	test   %rax,%rax
  31:	0f 8e e7 04 00 00    	jle    0x51e
  37:	48 89 c3             	mov    %rax,%rbx
  3a:	4c 89 6c 24 50       	mov    %r13,0x50(%rsp)