BUG: unable to handle page fault for address: ffffffffff600000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD cf7b067 P4D cf7b067 PUD cf7d067 PMD cfa0067 PTE 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5064 Comm: syz-executor402 Not tainted 6.7.0-syzkaller-12262-g736b5545d39c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:strncpy_from_kernel_nofault+0xc4/0x270 mm/maccess.c:91 Code: 83 85 6c 17 00 00 01 48 8b 2c 24 eb 18 e8 84 76 ce ff 4c 89 f6 4c 89 ef e8 89 71 ce ff 4d 39 f5 7d 5c 4c 89 fb e8 6c 76 ce ff <44> 8a 65 00 e8 63 76 ce ff 48 89 d8 48 89 da 48 b9 00 00 00 00 00 RSP: 0018:ffffc90003bef990 EFLAGS: 00010093 RAX: 0000000000000000 RBX: ffffc90003befa00 RCX: ffffffff81b9aaa2 RDX: ffff888028cad940 RSI: ffffffff81b9ab14 RDI: ffff888028caf0ac RBP: ffffffffff600000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000008 R13: ffffffffff600000 R14: 0000000000000008 R15: ffffffffff600000 FS: 0000555555644380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600000 CR3: 000000007cfc9000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_probe_read_kernel_str_common kernel/trace/bpf_trace.c:266 [inline] ____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:314 [inline] bpf_probe_read_compat_str+0x12f/0x170 kernel/trace/bpf_trace.c:307 bpf_prog_f17ebaf3f5f7baf8+0x42/0x44 bpf_dispatcher_nop_func include/linux/bpf.h:1231 [inline] __bpf_prog_run include/linux/filter.h:651 [inline] bpf_prog_run include/linux/filter.h:658 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run4+0x173/0x450 kernel/trace/bpf_trace.c:2422 __bpf_trace_sched_switch+0x13e/0x180 include/trace/events/sched.h:222 trace_sched_switch include/trace/events/sched.h:222 [inline] __schedule+0x2235/0x5c00 kernel/sched/core.c:6724 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x270 kernel/sched/core.c:6817 ptrace_stop.part.0+0x44d/0x950 kernel/signal.c:2344 ptrace_stop kernel/signal.c:2246 [inline] ptrace_do_notify+0x226/0x2d0 kernel/signal.c:2381 ptrace_notify+0xc8/0x130 kernel/signal.c:2393 ptrace_report_syscall include/linux/ptrace.h:411 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:473 [inline] syscall_exit_work kernel/entry/common.c:167 [inline] syscall_exit_to_user_mode_prepare+0x126/0x230 kernel/entry/common.c:194 __syscall_exit_to_user_mode_work kernel/entry/common.c:199 [inline] syscall_exit_to_user_mode+0x11/0x2b0 kernel/entry/common.c:212 do_syscall_64+0xe0/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fb9bcd97b39 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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:00007fff24e74fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: 0000000000000004 RBX: 0000000000000000 RCX: 00007fb9bcd97b39 RDX: 0000000000000010 RSI: 0000000020000280 RDI: 0000000000000011 RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000003a28 R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 Modules linked in: CR2: ffffffffff600000 ---[ end trace 0000000000000000 ]--- RIP: 0010:strncpy_from_kernel_nofault+0xc4/0x270 mm/maccess.c:91 Code: 83 85 6c 17 00 00 01 48 8b 2c 24 eb 18 e8 84 76 ce ff 4c 89 f6 4c 89 ef e8 89 71 ce ff 4d 39 f5 7d 5c 4c 89 fb e8 6c 76 ce ff <44> 8a 65 00 e8 63 76 ce ff 48 89 d8 48 89 da 48 b9 00 00 00 00 00 RSP: 0018:ffffc90003bef990 EFLAGS: 00010093 RAX: 0000000000000000 RBX: ffffc90003befa00 RCX: ffffffff81b9aaa2 RDX: ffff888028cad940 RSI: ffffffff81b9ab14 RDI: ffff888028caf0ac RBP: ffffffffff600000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000008 R13: ffffffffff600000 R14: 0000000000000008 R15: ffffffffff600000 FS: 0000555555644380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600000 CR3: 000000007cfc9000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 83 85 6c 17 00 00 01 addl $0x1,0x176c(%rbp) 7: 48 8b 2c 24 mov (%rsp),%rbp b: eb 18 jmp 0x25 d: e8 84 76 ce ff call 0xffce7696 12: 4c 89 f6 mov %r14,%rsi 15: 4c 89 ef mov %r13,%rdi 18: e8 89 71 ce ff call 0xffce71a6 1d: 4d 39 f5 cmp %r14,%r13 20: 7d 5c jge 0x7e 22: 4c 89 fb mov %r15,%rbx 25: e8 6c 76 ce ff call 0xffce7696 * 2a: 44 8a 65 00 mov 0x0(%rbp),%r12b <-- trapping instruction 2e: e8 63 76 ce ff call 0xffce7696 33: 48 89 d8 mov %rbx,%rax 36: 48 89 da mov %rbx,%rdx 39: 48 rex.W 3a: b9 00 00 00 00 mov $0x0,%ecx