BUG: unable to handle page fault for address: ffffffffa000078c #PF: supervisor write access in kernel mode #PF: error_code(0x0003) - permissions violation PGD 6a12067 P4D 6a12067 PUD 6a13063 PMD 108fcb067 PTE 108dcb161 Oops: 0003 [#1] PREEMPT SMP KASAN CPU: 1 PID: 7427 Comm: syz-executor.4 Not tainted 6.1.25-syzkaller-00056-g0ee75a672ca5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 RIP: 0010:bpf_test_run+0x4be/0xa40 Code: 08 4c 89 ef e8 63 7d 92 fd 48 8b 7c 24 38 48 8b 74 24 30 41 ff 55 00 41 89 c7 4c 89 f0 48 c1 e8 03 42 0f b6 04 20 84 c0 75 43 <45> 89 3e 48 8d bc 24 60 01 00 00 be 01 00 00 00 8b 54 24 2c 48 8d RSP: 0018:ffffc900020cf8e0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc900020cf9e0 RCX: 0000000000040000 RDX: ffffc9000185c000 RSI: 0000000000000390 RDI: 0000000000000391 RBP: ffffc900020cfaf0 R08: ffffffff8166edc1 R09: fffff52000419f4b R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffffffff840fc3d5 R14: ffffffffa000078c R15: 000000007fff0000 FS: 00007f6da9d596c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffa000078c CR3: 000000014481b000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_prog_test_run_xdp+0x7a7/0x1130 net/bpf/test_run.c:1389 bpf_prog_test_run+0x3b0/0x630 kernel/bpf/syscall.c:3630 __sys_bpf+0x59f/0x7f0 kernel/bpf/syscall.c:4985 __do_sys_bpf kernel/bpf/syscall.c:5071 [inline] __se_sys_bpf kernel/bpf/syscall.c:5069 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5069 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+0x63/0xcd RIP: 0033:0x7f6da907cb29 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:00007f6da9d590c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f6da919bf80 RCX: 00007f6da907cb29 RDX: 0000000000000048 RSI: 0000000020000000 RDI: 000000000000000a RBP: 00007f6da90c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f6da919bf80 R15: 00007fff1b8d4e18 Modules linked in: CR2: ffffffffa000078c ---[ end trace 0000000000000000 ]--- RIP: 0010:bpf_test_run+0x4be/0xa40 Code: 08 4c 89 ef e8 63 7d 92 fd 48 8b 7c 24 38 48 8b 74 24 30 41 ff 55 00 41 89 c7 4c 89 f0 48 c1 e8 03 42 0f b6 04 20 84 c0 75 43 <45> 89 3e 48 8d bc 24 60 01 00 00 be 01 00 00 00 8b 54 24 2c 48 8d RSP: 0018:ffffc900020cf8e0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc900020cf9e0 RCX: 0000000000040000 RDX: ffffc9000185c000 RSI: 0000000000000390 RDI: 0000000000000391 RBP: ffffc900020cfaf0 R08: ffffffff8166edc1 R09: fffff52000419f4b R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffffffff840fc3d5 R14: ffffffffa000078c R15: 000000007fff0000 FS: 00007f6da9d596c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffa000078c CR3: 000000014481b000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 08 4c 89 ef or %cl,-0x11(%rcx,%rcx,4) 4: e8 63 7d 92 fd call 0xfd927d6c 9: 48 8b 7c 24 38 mov 0x38(%rsp),%rdi e: 48 8b 74 24 30 mov 0x30(%rsp),%rsi 13: 41 ff 55 00 call *0x0(%r13) 17: 41 89 c7 mov %eax,%r15d 1a: 4c 89 f0 mov %r14,%rax 1d: 48 c1 e8 03 shr $0x3,%rax 21: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax 26: 84 c0 test %al,%al 28: 75 43 jne 0x6d * 2a: 45 89 3e mov %r15d,(%r14) <-- trapping instruction 2d: 48 8d bc 24 60 01 00 lea 0x160(%rsp),%rdi 34: 00 35: be 01 00 00 00 mov $0x1,%esi 3a: 8b 54 24 2c mov 0x2c(%rsp),%edx 3e: 48 rex.W 3f: 8d .byte 0x8d