general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 10139 Comm: syz-executor.2 Not tainted 6.6.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 RIP: 0010:bpf_prog_offload_verifier_prep+0x97/0x130 kernel/bpf/offload.c:295 Code: e8 7e 9d da ff 48 8d 6b 10 48 89 e8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 ef e8 a4 05 35 00 48 8b 6d 00 48 89 e8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 ef e8 8a 05 35 00 48 8b 6d 00 48 83 c5 RSP: 0018:ffffc9000a407258 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88807df25a00 RCX: 0000000000040000 RDX: ffffc90013196000 RSI: 0000000000003ed1 RDI: 0000000000003ed2 RBP: 0000000000000000 R08: ffffffff8d3c34af R09: 1ffffffff1a78695 R10: dffffc0000000000 R11: fffffbfff1a78696 R12: ffff88807c29c000 R13: dffffc0000000000 R14: ffffc90007385000 R15: dffffc0000000000 FS: 00007f40a14296c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5032cdbc48 CR3: 000000001eeb2000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_check+0x5510/0x13eb0 kernel/bpf/verifier.c:19762 bpf_prog_load+0x14c5/0x1da0 kernel/bpf/syscall.c:2708 __sys_bpf+0x4b3/0x810 kernel/bpf/syscall.c:5335 __do_sys_bpf kernel/bpf/syscall.c:5439 [inline] __se_sys_bpf kernel/bpf/syscall.c:5437 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5437 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f40a067cae9 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:00007f40a14290c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f40a079c050 RCX: 00007f40a067cae9 RDX: 0000000000000090 RSI: 0000000020000280 RDI: 0000000000000005 RBP: 00007f40a06c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f40a079c050 R15: 00007fff6c5ca898 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bpf_prog_offload_verifier_prep+0x97/0x130 kernel/bpf/offload.c:295 Code: e8 7e 9d da ff 48 8d 6b 10 48 89 e8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 ef e8 a4 05 35 00 48 8b 6d 00 48 89 e8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 ef e8 8a 05 35 00 48 8b 6d 00 48 83 c5 RSP: 0018:ffffc9000a407258 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88807df25a00 RCX: 0000000000040000 RDX: ffffc90013196000 RSI: 0000000000003ed1 RDI: 0000000000003ed2 RBP: 0000000000000000 R08: ffffffff8d3c34af R09: 1ffffffff1a78695 R10: dffffc0000000000 R11: fffffbfff1a78696 R12: ffff88807c29c000 R13: dffffc0000000000 R14: ffffc90007385000 R15: dffffc0000000000 FS: 00007f40a14296c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5032cdbc48 CR3: 000000001eeb2000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 7e 9d da ff call 0xffda9d83 5: 48 8d 6b 10 lea 0x10(%rbx),%rbp 9: 48 89 e8 mov %rbp,%rax c: 48 c1 e8 03 shr $0x3,%rax 10: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) 15: 74 08 je 0x1f 17: 48 89 ef mov %rbp,%rdi 1a: e8 a4 05 35 00 call 0x3505c3 1f: 48 8b 6d 00 mov 0x0(%rbp),%rbp 23: 48 89 e8 mov %rbp,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 ef mov %rbp,%rdi 34: e8 8a 05 35 00 call 0x3505c3 39: 48 8b 6d 00 mov 0x0(%rbp),%rbp 3d: 48 rex.W 3e: 83 .byte 0x83 3f: c5 .byte 0xc5