syzbot

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kernel BUG at kernel/bpf/arraymap.c:980!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1263 Comm: syz.6.304 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:prog_array_map_poke_run+0x6f4/0x710 kernel/bpf/arraymap.c:980
Code: 63 e9 ff eb 05 e8 4c 63 e9 ff 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 38 63 e9 ff 0f 0b e9 78 f9 ff ff e8 2c 63 e9 ff <0f> 0b e8 25 63 e9 ff 0f 0b e8 1e 63 e9 ff 0f 0b e8 17 63 e9 ff 0f
RSP: 0018:ffffc90000e47c10 EFLAGS: 00010293
RAX: ffffffff817b5324 RBX: ffff888105f99a50 RCX: ffff88810aed13c0
RDX: 0000000000000000 RSI: 00000000fffffff0 RDI: 00000000ffffffea
RBP: ffffc90000e47c90 R08: ffffffff864ea647 R09: 1ffffffff0c9d4c8
R10: dffffc0000000000 R11: fffffbfff0c9d4c9 R12: ffffffffa003e700
R13: ffff88812b8d5780 R14: 0000000000000001 R15: 00000000fffffff0
FS:  00007f73fa1d76c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001d40 CR3: 0000000100fb8000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 bpf_fd_array_map_update_elem+0x21f/0x330 kernel/bpf/arraymap.c:763
 bpf_map_update_value+0xb4/0x430 kernel/bpf/syscall.c:187
 map_update_elem+0x4a1/0x5e0 kernel/bpf/syscall.c:1139
 __do_sys_bpf kernel/bpf/syscall.c:4423 [inline]
 __se_sys_bpf+0x3e0/0x740 kernel/bpf/syscall.c:4391
 __x64_sys_bpf+0x7b/0x90 kernel/bpf/syscall.c:4391
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f73fa373f79
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:00007f73fa1d7028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f73fa5edfa0 RCX: 00007f73fa373f79
RDX: 0000000000000020 RSI: 0000200000000280 RDI: 0000000000000002
RBP: 00007f73fa40a7e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f73fa5ee038 R14: 00007f73fa5edfa0 R15: 00007fffb40c64a8
Modules linked in:
---[ end trace 26db51be8ad2e512 ]---
RIP: 0010:prog_array_map_poke_run+0x6f4/0x710 kernel/bpf/arraymap.c:980
Code: 63 e9 ff eb 05 e8 4c 63 e9 ff 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 38 63 e9 ff 0f 0b e9 78 f9 ff ff e8 2c 63 e9 ff <0f> 0b e8 25 63 e9 ff 0f 0b e8 1e 63 e9 ff 0f 0b e8 17 63 e9 ff 0f
RSP: 0018:ffffc90000e47c10 EFLAGS: 00010293
RAX: ffffffff817b5324 RBX: ffff888105f99a50 RCX: ffff88810aed13c0
RDX: 0000000000000000 RSI: 00000000fffffff0 RDI: 00000000ffffffea
RBP: ffffc90000e47c90 R08: ffffffff864ea647 R09: 1ffffffff0c9d4c8
R10: dffffc0000000000 R11: fffffbfff0c9d4c9 R12: ffffffffa003e700
R13: ffff88812b8d5780 R14: 0000000000000001 R15: 00000000fffffff0
FS:  00007f73fa1d76c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f67d4ad5d58 CR3: 0000000100fb8000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400