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: 968 Comm: syz.4.189 Not tainted 5.15.152-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:do_misc_fixups kernel/bpf/verifier.c:13307 [inline] RIP: 0010:bpf_check+0x949f/0x12d10 kernel/bpf/verifier.c:14096 Code: 00 48 8b 5c 24 28 74 08 48 89 df e8 1b 9e 2d 00 48 8b 33 44 89 ef 41 ff d6 48 89 c3 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 f3 9d 2d 00 48 8b 1b 48 85 db 4c 8b RSP: 0000:ffffc90000d47500 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 00000000fffffff3 RDI: 0000000000000000 RBP: ffffc90000d47bd0 R08: ffffffff8179df4d R09: ffffc90000d46cfc R10: 0000000000000014 R11: dffffc0000000001 R12: 1ffff9200001f613 R13: 0000000000000024 R14: ffffffff81799970 R15: ffffc900000fb09c FS: 00007f93b7ffe6c0(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f11633a8a8c CR3: 0000000112eb3000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_prog_load+0x12ac/0x1b50 kernel/bpf/syscall.c:2331 __sys_bpf+0x356/0x640 kernel/bpf/syscall.c:4629 __do_sys_bpf kernel/bpf/syscall.c:4733 [inline] __se_sys_bpf kernel/bpf/syscall.c:4731 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:4731 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f93b85769f9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f93b7ffe048 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f93b8704f80 RCX: 00007f93b85769f9 RDX: 0000000000000090 RSI: 00000000200000c0 RDI: 0000000000000005 RBP: 00007f93b85e48ee R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f93b8704f80 R15: 00007ffe8b3f55c8 Modules linked in: ---[ end trace 5453803986080551 ]--- RIP: 0010:do_misc_fixups kernel/bpf/verifier.c:13307 [inline] RIP: 0010:bpf_check+0x949f/0x12d10 kernel/bpf/verifier.c:14096 Code: 00 48 8b 5c 24 28 74 08 48 89 df e8 1b 9e 2d 00 48 8b 33 44 89 ef 41 ff d6 48 89 c3 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 f3 9d 2d 00 48 8b 1b 48 85 db 4c 8b RSP: 0000:ffffc90000d47500 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 00000000fffffff3 RDI: 0000000000000000 RBP: ffffc90000d47bd0 R08: ffffffff8179df4d R09: ffffc90000d46cfc R10: 0000000000000014 R11: dffffc0000000001 R12: 1ffff9200001f613 R13: 0000000000000024 R14: ffffffff81799970 R15: ffffc900000fb09c FS: 00007f93b7ffe6c0(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbe3f0baab8 CR3: 0000000112eb3000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 48 8b add %cl,-0x75(%rax) 3: 5c pop %rsp 4: 24 28 and $0x28,%al 6: 74 08 je 0x10 8: 48 89 df mov %rbx,%rdi b: e8 1b 9e 2d 00 call 0x2d9e2b 10: 48 8b 33 mov (%rbx),%rsi 13: 44 89 ef mov %r13d,%edi 16: 41 ff d6 call *%r14 19: 48 89 c3 mov %rax,%rbx 1c: 48 c1 e8 03 shr $0x3,%rax 20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 27: fc ff df * 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 48 89 df mov %rbx,%rdi 33: e8 f3 9d 2d 00 call 0x2d9e2b 38: 48 8b 1b mov (%rbx),%rbx 3b: 48 85 db test %rbx,%rbx 3e: 4c rex.WR 3f: 8b .byte 0x8b