syzbot

Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4226 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : __htab_map_lookup_and_delete_batch+0x2d0/0x177c kernel/bpf/hashtab.c:1639
lr : __htab_map_lookup_and_delete_batch+0x2a4/0x177c kernel/bpf/hashtab.c:1639
sp : ffff80001fdb7920
x29: ffff80001fdb7b20 x28: 0000000000000000 x27: 0000000020001620
x26: ffff0000d732b000 x25: ffff80001fdb7c40 x24: ffff80001fdb7ac0
x23: 1ffff00003fb6f58 x22: 0000000020001620 x21: 00000000fffffff2
x20: 0000000000000000 x19: dfff800000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80000859c014 x15: 000000000000001b
x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000020001620
x8 : 0000ffffffffffff x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 __htab_map_lookup_and_delete_batch+0x2d0/0x177c kernel/bpf/hashtab.c:1639
 htab_percpu_map_lookup_and_delete_batch+0x40/0x54 kernel/bpf/hashtab.c:1834
 bpf_map_do_batch+0x388/0x530 kernel/bpf/syscall.c:-1
 __sys_bpf+0x34c/0x5f0 kernel/bpf/syscall.c:-1
 __do_sys_bpf kernel/bpf/syscall.c:4755 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4753 [inline]
 __arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:4753
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: ea28037f 9a9f02c9 d503229f b8000935 (2a1503e1) 
---[ end trace 2c751e76f398fe2b ]---
----------------
Code disassembly (best guess):
   0:	ea28037f 	bics	xzr, x27, x8
   4:	9a9f02c9 	csel	x9, x22, xzr, eq	// eq = none
   8:	d503229f 	csdb
   c:	b8000935 	sttr	w21, [x9]
* 10:	2a1503e1 	mov	w1, w21 <-- trapping instruction