syzbot

Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4219 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: 62400405 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : copy_from_kernel_nofault+0x134/0x330 mm/maccess.c:39
lr : copy_from_kernel_nofault+0x10c/0x330 mm/maccess.c:39
sp : ffff80001fe17760
x29: ffff80001fe17760 x28: 0000000000000004 x27: dfff800000000000
x26: 1fffe00019c0c611 x25: 00000000fffffff2 x24: ffff80001fe17840
x23: 0000000000000000 x22: 0000000000000000 x21: ffffffff860bffff
x20: ffff80001fe17844 x19: ffff0000ce063088 x18: 0000000000000002
x17: 0000000000000000 x16: ffff800008683e84 x15: 0000000000000036
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000002 x10: 0000000000000000 x9 : 1ffff00003fc2f08
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000058587025
x5 : ffff80001fe17865 x4 : ffff800013919d84 x3 : ffff800008587df4
x2 : 0000000000000004 x1 : 0000000000000004 x0 : 0000000000000003
Call trace:
 copy_from_kernel_nofault+0x134/0x330 mm/maccess.c:39
 bpf_bprintf_prepare+0xc60/0x119c kernel/bpf/helpers.c:885
 ____bpf_snprintf kernel/bpf/helpers.c:1011 [inline]
 bpf_snprintf+0xcc/0x14c kernel/bpf/helpers.c:995
 bpf_prog_f2f741945f01d4c6+0x78/0x808
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:652 [inline]
 bpf_flow_dissect+0x100/0x408 net/core/flow_dissector.c:896
 bpf_prog_test_run_flow_dissector+0x330/0x4c4 net/bpf/test_run.c:907
 bpf_prog_test_run+0x2e0/0x374 kernel/bpf/syscall.c:3368
 __sys_bpf+0x4ac/0x5f0 kernel/bpf/syscall.c:4669
 __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: d343ff09 2a1703f9 12000b0a b94002a8 (11000d4a) 
---[ end trace bbe2110391fedf53 ]---
----------------
Code disassembly (best guess):
   0:	d343ff09 	lsr	x9, x24, #3
   4:	2a1703f9 	mov	w25, w23
   8:	12000b0a 	and	w10, w24, #0x7
   c:	b94002a8 	ldr	w8, [x21]
* 10:	11000d4a 	add	w10, w10, #0x3 <-- trapping instruction