general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 9063 Comm: syz-executor.2 Not tainted 6.6.0-rc2-syzkaller-00143-gb5cbe7c00aa0 #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 84 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 6a 05 35 00 48 8b 6d 00 48 83 c5 RSP: 0018:ffffc90003817258 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888034c8b700 RCX: 0000000000040000 RDX: ffffc9000b898000 RSI: 0000000000001cf8 RDI: 0000000000001cf9 RBP: 0000000000000000 R08: ffffffff8d3c34af R09: 1ffffffff1a78695 R10: dffffc0000000000 R11: fffffbfff1a78696 R12: ffff8880b0ce8000 R13: dffffc0000000000 R14: ffffc90004f21000 R15: dffffc0000000000 FS: 00007fb0ab3246c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdbae00ba8 CR3: 00000000a5bb4000 CR4: 00000000003506f0 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: 0033:0x7fb0aa67cae9 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:00007fb0ab3240c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fb0aa79bf80 RCX: 00007fb0aa67cae9 RDX: 0000000000000090 RSI: 0000000020000580 RDI: 0000000000000005 RBP: 00007fb0aa6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fb0aa79bf80 R15: 00007fff74afcfe8 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 84 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 6a 05 35 00 48 8b 6d 00 48 83 c5 RSP: 0018:ffffc90003817258 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888034c8b700 RCX: 0000000000040000 RDX: ffffc9000b898000 RSI: 0000000000001cf8 RDI: 0000000000001cf9 RBP: 0000000000000000 R08: ffffffff8d3c34af R09: 1ffffffff1a78695 R10: dffffc0000000000 R11: fffffbfff1a78696 R12: ffff8880b0ce8000 R13: dffffc0000000000 R14: ffffc90004f21000 R15: dffffc0000000000 FS: 00007fb0ab3246c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2915f75198 CR3: 00000000a5bb4000 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 84 05 35 00 call 0x3505a3 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 6a 05 35 00 call 0x3505a3 39: 48 8b 6d 00 mov 0x0(%rbp),%rbp 3d: 48 rex.W 3e: 83 .byte 0x83 3f: c5 .byte 0xc5