general protection fault, probably for non-canonical address 0xdffffc0000000011: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000088-0x000000000000008f] CPU: 0 PID: 8397 Comm: syz-executor.5 Not tainted 6.7.0-syzkaller-12348-gd47b9f68d289 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:bpf_struct_ops_find_value+0x49/0x140 kernel/bpf/btf.c:8763 Code: 7d ea dd ff 45 85 e4 0f 84 d7 00 00 00 e8 ff ee dd ff 48 8d bb 88 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 dc 00 00 00 48 8b 9b 88 00 00 00 48 85 db 0f 84 RSP: 0018:ffffc90004197b20 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9001cada000 RDX: 0000000000000011 RSI: ffffffff81aa3291 RDI: 0000000000000088 RBP: ffffc90004197dd0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000002 R13: 000000000000001a R14: ffffffff8ad6bca0 R15: ffffc90004197e04 FS: 00007f240925d6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fac8cd01404 CR3: 000000001a6e9000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000097 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: bpf_struct_ops_map_alloc+0x12f/0x5d0 kernel/bpf/bpf_struct_ops.c:674 map_create+0x548/0x1b90 kernel/bpf/syscall.c:1237 __sys_bpf+0xa32/0x4a00 kernel/bpf/syscall.c:5445 __do_sys_bpf kernel/bpf/syscall.c:5567 [inline] __se_sys_bpf kernel/bpf/syscall.c:5565 [inline] __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5565 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f240847cda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f240925d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f24085abf80 RCX: 00007f240847cda9 RDX: 0000000000000048 RSI: 00000000200004c0 RDI: 0000000000000000 RBP: 00007f24084c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f24085abf80 R15: 00007ffe6214afd8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bpf_struct_ops_find_value+0x49/0x140 kernel/bpf/btf.c:8763 Code: 7d ea dd ff 45 85 e4 0f 84 d7 00 00 00 e8 ff ee dd ff 48 8d bb 88 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 dc 00 00 00 48 8b 9b 88 00 00 00 48 85 db 0f 84 RSP: 0018:ffffc90004197b20 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9001cada000 RDX: 0000000000000011 RSI: ffffffff81aa3291 RDI: 0000000000000088 RBP: ffffc90004197dd0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000002 R13: 000000000000001a R14: ffffffff8ad6bca0 R15: ffffc90004197e04 FS: 00007f240925d6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6f169ad988 CR3: 000000001a6e9000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess), 4 bytes skipped: 0: 45 85 e4 test %r12d,%r12d 3: 0f 84 d7 00 00 00 je 0xe0 9: e8 ff ee dd ff call 0xffddef0d e: 48 8d bb 88 00 00 00 lea 0x88(%rbx),%rdi 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx * 26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2a: 0f 85 dc 00 00 00 jne 0x10c 30: 48 8b 9b 88 00 00 00 mov 0x88(%rbx),%rbx 37: 48 85 db test %rbx,%rbx 3a: 0f .byte 0xf 3b: 84 .byte 0x84