syzbot

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kernel BUG at drivers/android/binder_alloc.c:897!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 5958 Comm: kworker/1:6 Not tainted 6.12.0-rc6-syzkaller-00099-g7758b206117d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events binder_deferred_func
RIP: 0010:binder_alloc_deferred_release+0xa2f/0xa40 drivers/android/binder_alloc.c:897
Code: 80 e1 07 80 c1 03 38 c1 7c b6 48 89 ef e8 79 1c c1 f8 eb ac e8 32 7a 5a f8 90 0f 0b e8 2a 7a 5a f8 90 0f 0b e8 22 7a 5a f8 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffc900048afa48 EFLAGS: 00010293
RAX: ffffffff893a5fde RBX: ffff88807fa25a60 RCX: ffff88801cb00000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc900048af9c0
RBP: ffff88807fa25a20 R08: 0000000000000003 R09: fffff52000915f38
R10: dffffc0000000000 R11: fffff52000915f38 R12: dffffc0000000000
R13: ffff88807fa25ac8 R14: dffffc0000000000 R15: ffff888029748910
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffca401ef00 CR3: 00000000611ae000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 binder_free_proc drivers/android/binder.c:5237 [inline]
 binder_proc_dec_tmpref+0x29e/0x500 drivers/android/binder.c:1559
 binder_deferred_release drivers/android/binder.c:6269 [inline]
 binder_deferred_func+0x12df/0x1460 drivers/android/binder.c:6296
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:binder_alloc_deferred_release+0xa2f/0xa40 drivers/android/binder_alloc.c:897
Code: 80 e1 07 80 c1 03 38 c1 7c b6 48 89 ef e8 79 1c c1 f8 eb ac e8 32 7a 5a f8 90 0f 0b e8 2a 7a 5a f8 90 0f 0b e8 22 7a 5a f8 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffc900048afa48 EFLAGS: 00010293
RAX: ffffffff893a5fde RBX: ffff88807fa25a60 RCX: ffff88801cb00000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc900048af9c0
RBP: ffff88807fa25a20 R08: 0000000000000003 R09: fffff52000915f38
R10: dffffc0000000000 R11: fffff52000915f38 R12: dffffc0000000000
R13: ffff88807fa25ac8 R14: dffffc0000000000 R15: ffff888029748910
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffca401ef00 CR3: 00000000611ae000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400