syzbot

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kernel BUG at arch/x86/kernel/alternative.c:1112!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3597 Comm: syz-executor148 Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
RIP: 0010:__text_poke+0x4f5/0x8e0 arch/x86/kernel/alternative.c:1112
Code: c3 0f 86 7f fc ff ff 49 8d bc 24 00 10 00 00 e8 b1 d3 8d 00 48 89 44 24 30 48 83 7c 24 30 00 74 09 48 85 db 0f 85 6e fc ff ff <0f> 0b 48 b8 00 f0 ff ff ff ff 0f 00 49 21 c0 48 85 db 0f 85 81 00
RSP: 0018:ffffc90002f3f548 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888024ad3b00 RSI: ffffffff81b9f4b3 RDI: 0000000000000005
RBP: 0000000000000004 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffffffffa0401800
R13: 0000000000000004 R14: 0000000000000804 R15: 0000000000002000
FS:  00005555574eb300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000cf3d CR3: 00000000763ad000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 text_poke_copy+0x6d/0xa0 arch/x86/kernel/alternative.c:1257
 bpf_arch_text_copy+0x21/0x40 arch/x86/net/bpf_jit_comp.c:2505
 bpf_jit_binary_pack_alloc+0x8fd/0x990 kernel/bpf/core.c:1120
 bpf_int_jit_compile+0x53a/0x13e0 arch/x86/net/bpf_jit_comp.c:2436
 jit_subprogs kernel/bpf/verifier.c:13562 [inline]
 fixup_call_args kernel/bpf/verifier.c:13693 [inline]
 bpf_check+0x69c6/0xb680 kernel/bpf/verifier.c:15044
 bpf_prog_load+0xfb2/0x2250 kernel/bpf/syscall.c:2575
 __sys_bpf+0x11a1/0x5700 kernel/bpf/syscall.c:4917
 __do_sys_bpf kernel/bpf/syscall.c:5021 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5019 [inline]
 __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:5019
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7005ce7209
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc6a87b798 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f7005ce7209
RDX: 0000000000000070 RSI: 0000000020000440 RDI: 0000000000000005
RBP: 00007ffc6a87b7b0 R08: 0000000000000002 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__text_poke+0x4f5/0x8e0 arch/x86/kernel/alternative.c:1112
Code: c3 0f 86 7f fc ff ff 49 8d bc 24 00 10 00 00 e8 b1 d3 8d 00 48 89 44 24 30 48 83 7c 24 30 00 74 09 48 85 db 0f 85 6e fc ff ff <0f> 0b 48 b8 00 f0 ff ff ff ff 0f 00 49 21 c0 48 85 db 0f 85 81 00
RSP: 0018:ffffc90002f3f548 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888024ad3b00 RSI: ffffffff81b9f4b3 RDI: 0000000000000005
RBP: 0000000000000004 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffffffffa0401800
R13: 0000000000000004 R14: 0000000000000804 R15: 0000000000002000
FS:  00005555574eb300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000cf3d CR3: 00000000763ad000 CR4: 0000000000350ef0