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: 11962 Comm: syz.0.5403 Tainted: G W 5.15.168-syzkaller-00719-g101e665d55a8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:do_misc_fixups kernel/bpf/verifier.c:13328 [inline] RIP: 0010:bpf_check+0x9514/0x12bf0 kernel/bpf/verifier.c:14117 Code: 24 70 80 3c 08 00 74 08 4c 89 ef e8 86 ca 30 00 49 8b 75 00 89 df 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 5e ca 30 00 48 8b 1b 48 85 db 0f 84 RSP: 0018:ffffc900081f74e0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: ffff888110dfe2c0 RSI: 00000000fffffff3 RDI: 0000000000000000 RBP: ffffc900081f7bb0 R08: ffffffff817c2e4a R09: 0000000000000003 R10: fffff5200103ed68 R11: dffffc0000000001 R12: 1ffff92000131613 R13: ffff888127cfc008 R14: ffffffff817be770 R15: ffffc9000098b09c FS: 00007f68085fa6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fed535a1000 CR3: 0000000115cd5000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_prog_load+0x12ac/0x1b50 kernel/bpf/syscall.c:2333 __sys_bpf+0x4bc/0x760 kernel/bpf/syscall.c:4633 __do_sys_bpf kernel/bpf/syscall.c:4737 [inline] __se_sys_bpf kernel/bpf/syscall.c:4735 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:4735 x64_sys_call+0x87f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:322 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f6809f81819 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:00007f68085fa038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f680a138fa0 RCX: 00007f6809f81819 RDX: 0000000000000094 RSI: 00000000200000c0 RDI: 0000000000000005 RBP: 00007f6809ff475e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f680a138fa0 R15: 00007ffd44ffce48 Modules linked in: ---[ end trace f967045d48063e15 ]--- RIP: 0010:do_misc_fixups kernel/bpf/verifier.c:13328 [inline] RIP: 0010:bpf_check+0x9514/0x12bf0 kernel/bpf/verifier.c:14117 Code: 24 70 80 3c 08 00 74 08 4c 89 ef e8 86 ca 30 00 49 8b 75 00 89 df 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 5e ca 30 00 48 8b 1b 48 85 db 0f 84 RSP: 0018:ffffc900081f74e0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: ffff888110dfe2c0 RSI: 00000000fffffff3 RDI: 0000000000000000 RBP: ffffc900081f7bb0 R08: ffffffff817c2e4a R09: 0000000000000003 R10: fffff5200103ed68 R11: dffffc0000000001 R12: 1ffff92000131613 R13: ffff888127cfc008 R14: ffffffff817be770 R15: ffffc9000098b09c FS: 00007f68085fa6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f71fe23c178 CR3: 0000000115cd5000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 24 70 and $0x70,%al 2: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) 6: 74 08 je 0x10 8: 4c 89 ef mov %r13,%rdi b: e8 86 ca 30 00 call 0x30ca96 10: 49 8b 75 00 mov 0x0(%r13),%rsi 14: 89 df mov %ebx,%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 5e ca 30 00 call 0x30ca96 38: 48 8b 1b mov (%rbx),%rbx 3b: 48 85 db test %rbx,%rbx 3e: 0f .byte 0xf 3f: 84 .byte 0x84