BUG: unable to handle page fault for address: ffffffffff600000 #PF: supervisor read access in kernel mode #PF: error_code(0x0001) - permissions violation PGD 6412067 P4D 6412067 PUD 6414067 PMD 6416067 PTE 8000000006409165 Oops: 0001 [#1] PREEMPT SMP KASAN CPU: 1 PID: 358 Comm: syz-executor.0 Not tainted 5.15.152-syzkaller-1069667-g70e1a731d986 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:strncpy_from_kernel_nofault+0x92/0x1e0 mm/maccess.c:92 Code: d0 48 c1 e8 03 48 89 45 c0 42 0f b6 04 30 84 c0 48 89 55 c8 0f 85 eb 00 00 00 ff 02 45 31 e4 48 8b 55 d0 4c 8b 7d b8 49 89 dd <42> 8a 1c 23 4a 8d 3c 22 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 RSP: 0018:ffffc90000a971c8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffffffff600000 RCX: ffff88810ae72780 RDX: ffffc90000a97268 RSI: ffffffffff600000 RDI: ffffffffff600000 RBP: ffffc90000a97210 R08: ffffffff8135f5dd R09: ffffed10215ce4f1 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffffffffff600000 R14: dffffc0000000000 R15: 0000000000000008 FS: 00007f43f85b66c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600000 CR3: 000000011f6bb000 CR4: 00000000003506a0 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:255 [inline] ____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:303 [inline] bpf_probe_read_compat_str+0x112/0x180 kernel/trace/bpf_trace.c:296 bpf_prog_f17ebaf3f5f7baf8+0x3a/0xc54 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run3+0x11e/0x250 kernel/trace/bpf_trace.c:1918 __bpf_trace_sched_switch+0xb/0x10 include/trace/events/sched.h:220 trace_sched_switch include/trace/events/sched.h:220 [inline] __schedule+0x134b/0x1590 kernel/sched/core.c:6509 preempt_schedule_common+0x9b/0xf0 kernel/sched/core.c:6688 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6713 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34 try_to_wake_up+0x6ee/0x1160 kernel/sched/core.c:4259 wake_up_process kernel/sched/core.c:4322 [inline] wake_up_q+0xf0/0x1d0 kernel/sched/core.c:972 futex_wake+0x821/0xc80 kernel/futex/core.c:1706 do_futex+0x1310/0x37f0 kernel/futex/core.c:4000 __do_sys_futex kernel/futex/core.c:4072 [inline] __se_sys_futex+0x37b/0x3e0 kernel/futex/core.c:4053 __x64_sys_futex+0xe5/0x100 kernel/futex/core.c:4053 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+0x61/0xcb RIP: 0033:0x7f43f8a33da9 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:00007f43f85b6178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f43f8b62f88 RCX: 00007f43f8a33da9 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f43f8b62f8c RBP: 00007f43f8b62f80 R08: 00007ffd5d5e20b0 R09: 00007f43f85b66c0 R10: 0000000000000004 R11: 0000000000000246 R12: 00007f43f8b62f8c R13: 000000000000000b R14: 00007ffd5d544440 R15: 00007ffd5d544528 Modules linked in: CR2: ffffffffff600000 ---[ end trace 2a02b5b4d6566d03 ]--- RIP: 0010:strncpy_from_kernel_nofault+0x92/0x1e0 mm/maccess.c:92 Code: d0 48 c1 e8 03 48 89 45 c0 42 0f b6 04 30 84 c0 48 89 55 c8 0f 85 eb 00 00 00 ff 02 45 31 e4 48 8b 55 d0 4c 8b 7d b8 49 89 dd <42> 8a 1c 23 4a 8d 3c 22 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 RSP: 0018:ffffc90000a971c8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffffffff600000 RCX: ffff88810ae72780 RDX: ffffc90000a97268 RSI: ffffffffff600000 RDI: ffffffffff600000 RBP: ffffc90000a97210 R08: ffffffff8135f5dd R09: ffffed10215ce4f1 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffffffffff600000 R14: dffffc0000000000 R15: 0000000000000008 FS: 00007f43f85b66c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600000 CR3: 000000011f6bb000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: d0 48 c1 rorb -0x3f(%rax) 3: e8 03 48 89 45 call 0x4589480b 8: c0 42 0f b6 rolb $0xb6,0xf(%rdx) c: 04 30 add $0x30,%al e: 84 c0 test %al,%al 10: 48 89 55 c8 mov %rdx,-0x38(%rbp) 14: 0f 85 eb 00 00 00 jne 0x105 1a: ff 02 incl (%rdx) 1c: 45 31 e4 xor %r12d,%r12d 1f: 48 8b 55 d0 mov -0x30(%rbp),%rdx 23: 4c 8b 7d b8 mov -0x48(%rbp),%r15 27: 49 89 dd mov %rbx,%r13 * 2a: 42 8a 1c 23 mov (%rbx,%r12,1),%bl <-- trapping instruction 2e: 4a 8d 3c 22 lea (%rdx,%r12,1),%rdi 32: 48 89 f8 mov %rdi,%rax 35: 48 c1 e8 03 shr $0x3,%rax 39: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax 3e: 84 c0 test %al,%al