BUG: unable to handle page fault for address: 000000005ed44c40 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 751b7067 P4D 751b7067 PUD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5926 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:bpf_prog_40e58f572301565e+0x5c/0x9f Code: 0a b8 02 00 00 00 41 5d 5b c9 c3 48 89 df 48 8b b7 d8 00 00 00 48 63 f6 48 8b 57 50 48 89 f0 48 83 c0 08 48 39 c2 77 02 eb dc <48> 0f b7 5e 00 49 89 dd 48 81 fb 0f ff 07 00 74 00 48 c1 e3 20 66 RSP: 0018:ffffc90003377aa0 EFLAGS: 00010286 RAX: 000000005ed44c48 RBX: 0000000000000000 RCX: ffff888077babc00 RDX: ffff88805ed44c4e RSI: 000000005ed44c40 RDI: ffff88807579c500 RBP: ffffc90003377ab0 R08: ffffffff8e8aeeef R09: 1ffffffff1d15ddd R10: dffffc0000000000 R11: fffffbfff1d15dde R12: ffffc90002eb2030 R13: ffffc90003377d00 R14: 0000000000000000 R15: dffffc0000000000 FS: 000055556ac32500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000005ed44c40 CR3: 000000007543f000 CR4: 00000000003506e0 Call Trace: bpf_dispatcher_nop_func include/linux/bpf.h:1224 [inline] __bpf_prog_run include/linux/filter.h:616 [inline] bpf_prog_run include/linux/filter.h:623 [inline] bpf_test_run+0x2df/0x870 net/bpf/test_run.c:424 bpf_prog_test_run_skb+0xad2/0x12b0 net/bpf/test_run.c:1058 bpf_prog_test_run+0x321/0x390 kernel/bpf/syscall.c:4132 __sys_bpf+0x49d/0x890 kernel/bpf/syscall.c:5494 __do_sys_bpf kernel/bpf/syscall.c:5580 [inline] __se_sys_bpf kernel/bpf/syscall.c:5578 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5578 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f00d159c799 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe35fc8d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f00d1815fa0 RCX: 00007f00d159c799 RDX: 000000000000004c RSI: 00002000000011c0 RDI: 000000000000000a RBP: 00007f00d1632bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f00d1815fac R14: 00007f00d1815fa0 R15: 00007f00d1815fa0 Modules linked in: CR2: 000000005ed44c40 ---[ end trace 0000000000000000 ]--- RIP: 0010:bpf_prog_40e58f572301565e+0x5c/0x9f Code: 0a b8 02 00 00 00 41 5d 5b c9 c3 48 89 df 48 8b b7 d8 00 00 00 48 63 f6 48 8b 57 50 48 89 f0 48 83 c0 08 48 39 c2 77 02 eb dc <48> 0f b7 5e 00 49 89 dd 48 81 fb 0f ff 07 00 74 00 48 c1 e3 20 66 RSP: 0018:ffffc90003377aa0 EFLAGS: 00010286 RAX: 000000005ed44c48 RBX: 0000000000000000 RCX: ffff888077babc00 RDX: ffff88805ed44c4e RSI: 000000005ed44c40 RDI: ffff88807579c500 RBP: ffffc90003377ab0 R08: ffffffff8e8aeeef R09: 1ffffffff1d15ddd R10: dffffc0000000000 R11: fffffbfff1d15dde R12: ffffc90002eb2030 R13: ffffc90003377d00 R14: 0000000000000000 R15: dffffc0000000000 FS: 000055556ac32500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000005ed44c40 CR3: 000000007543f000 CR4: 00000000003506e0 ---------------- Code disassembly (best guess): 0: 0a b8 02 00 00 00 or 0x2(%rax),%bh 6: 41 5d pop %r13 8: 5b pop %rbx 9: c9 leave a: c3 ret b: 48 89 df mov %rbx,%rdi e: 48 8b b7 d8 00 00 00 mov 0xd8(%rdi),%rsi 15: 48 63 f6 movslq %esi,%rsi 18: 48 8b 57 50 mov 0x50(%rdi),%rdx 1c: 48 89 f0 mov %rsi,%rax 1f: 48 83 c0 08 add $0x8,%rax 23: 48 39 c2 cmp %rax,%rdx 26: 77 02 ja 0x2a 28: eb dc jmp 0x6 * 2a: 48 0f b7 5e 00 movzwq 0x0(%rsi),%rbx <-- trapping instruction 2f: 49 89 dd mov %rbx,%r13 32: 48 81 fb 0f ff 07 00 cmp $0x7ff0f,%rbx 39: 74 00 je 0x3b 3b: 48 c1 e3 20 shl $0x20,%rbx 3f: 66 data16