general protection fault, probably for non-canonical address 0xdffffc0000000099: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x00000000000004c8-0x00000000000004cf] CPU: 1 PID: 15691 Comm: syz-executor.1 Not tainted 6.2.0-rc6-next-20230202-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:bpf_int_jit_compile+0x58a/0x15a0 arch/x86/net/bpf_jit_comp.c:2566 Code: 00 0f 85 19 0c 00 00 48 8b 04 24 4d 01 f4 48 b9 00 00 00 00 00 fc ff df 4c 8b 78 38 49 8d bf c8 04 00 00 48 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 14 0c 00 00 4d 89 a7 c8 04 00 00 e9 1e fe ff ff RSP: 0018:ffffc9001158f968 EFLAGS: 00010206 RAX: 0000000000000099 RBX: 0000000000000001 RCX: dffffc0000000000 RDX: 0000000000040000 RSI: ffffffff814ad1e1 RDI: 00000000000004c8 RBP: 000000000000001f R08: 0000000000000004 R09: 00000000e37eec68 R10: 0000000000000018 R11: 0000000000000000 R12: ffffffffa000066c R13: 0000000000000000 R14: ffffffffa000064c R15: 0000000000000000 FS: 00007f20c105b700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f20c02d9210 CR3: 000000002b964000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_prog_select_runtime+0x2de/0x4b0 kernel/bpf/core.c:2198 bpf_prog_load+0x170d/0x21d0 kernel/bpf/syscall.c:2621 __sys_bpf+0x1435/0x5100 kernel/bpf/syscall.c:4977 __do_sys_bpf kernel/bpf/syscall.c:5081 [inline] __se_sys_bpf kernel/bpf/syscall.c:5079 [inline] __x64_sys_bpf+0x79/0xc0 kernel/bpf/syscall.c:5079 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f20c028c0c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f20c105b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f20c03abf80 RCX: 00007f20c028c0c9 RDX: 0000000000000080 RSI: 0000000020000240 RDI: 0000000000000005 RBP: 00007f20c02e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff99175b3f R14: 00007f20c105b300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bpf_int_jit_compile+0x58a/0x15a0 arch/x86/net/bpf_jit_comp.c:2566 Code: 00 0f 85 19 0c 00 00 48 8b 04 24 4d 01 f4 48 b9 00 00 00 00 00 fc ff df 4c 8b 78 38 49 8d bf c8 04 00 00 48 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 14 0c 00 00 4d 89 a7 c8 04 00 00 e9 1e fe ff ff RSP: 0018:ffffc9001158f968 EFLAGS: 00010206 RAX: 0000000000000099 RBX: 0000000000000001 RCX: dffffc0000000000 RDX: 0000000000040000 RSI: ffffffff814ad1e1 RDI: 00000000000004c8 RBP: 000000000000001f R08: 0000000000000004 R09: 00000000e37eec68 R10: 0000000000000018 R11: 0000000000000000 R12: ffffffffa000066c R13: 0000000000000000 R14: ffffffffa000064c R15: 0000000000000000 FS: 00007f20c105b700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3272d000 CR3: 000000002b964000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 0f add %cl,(%rdi) 2: 85 19 test %ebx,(%rcx) 4: 0c 00 or $0x0,%al 6: 00 48 8b add %cl,-0x75(%rax) 9: 04 24 add $0x24,%al b: 4d 01 f4 add %r14,%r12 e: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 15: fc ff df 18: 4c 8b 78 38 mov 0x38(%rax),%r15 1c: 49 8d bf c8 04 00 00 lea 0x4c8(%r15),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction 2e: 0f 85 14 0c 00 00 jne 0xc48 34: 4d 89 a7 c8 04 00 00 mov %r12,0x4c8(%r15) 3b: e9 1e fe ff ff jmpq 0xfffffe5e