BUG: unable to handle page fault for address: 0000000000001058 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10529c067 P4D 10529c067 PUD 104ea3067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 1852 Comm: syz-executor.0 Not tainted 6.6.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:bitmap_clear include/linux/bitmap.h:478 [inline] RIP: 0010:ptp_ioctl+0x523/0xbd0 drivers/ptp/ptp_chardev.c:462 Code: e7 ff d0 4c 8d 4c 24 60 85 c0 0f 84 4c 03 00 00 48 63 d8 45 31 ed 45 31 ff e9 4c fe ff ff 81 fe 13 3d 00 00 0f 85 e1 00 00 00 <48> 8b 91 58 10 00 00 b9 20 00 00 00 48 89 d7 f3 48 ab 31 db 45 31 RSP: 0018:ffffc90001687d00 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000003d13 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000003d13 RDI: ffffc90001687e98 RBP: ffffc90001687ed0 R08: ffff88810a290cd0 R09: ffffc90001687d60 R10: 0000000000000000 R11: ffff888102e6c000 R12: ffffffff837fc9c8 R13: ffffc90001687da8 R14: ffffc90001687de8 R15: ffffc90001687e38 FS: 00007feded47b6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000001058 CR3: 0000000104eb4000 CR4: 0000000000350ef0 Call Trace: posix_clock_ioctl+0x52/0x80 kernel/time/posix-clock.c:86 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __x64_sys_ioctl+0x8b/0xc0 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7feded8f8ae9 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:00007feded47b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fededa17f80 RCX: 00007feded8f8ae9 RDX: 0000000000000000 RSI: 0000000000003d13 RDI: 0000000000000003 RBP: 00007feded94447a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007fededa17f80 R15: 00007ffe55968448 Modules linked in: CR2: 0000000000001058 ---[ end trace 0000000000000000 ]--- RIP: 0010:bitmap_clear include/linux/bitmap.h:478 [inline] RIP: 0010:ptp_ioctl+0x523/0xbd0 drivers/ptp/ptp_chardev.c:462 Code: e7 ff d0 4c 8d 4c 24 60 85 c0 0f 84 4c 03 00 00 48 63 d8 45 31 ed 45 31 ff e9 4c fe ff ff 81 fe 13 3d 00 00 0f 85 e1 00 00 00 <48> 8b 91 58 10 00 00 b9 20 00 00 00 48 89 d7 f3 48 ab 31 db 45 31 RSP: 0018:ffffc90001687d00 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000003d13 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000003d13 RDI: ffffc90001687e98 RBP: ffffc90001687ed0 R08: ffff88810a290cd0 R09: ffffc90001687d60 R10: 0000000000000000 R11: ffff888102e6c000 R12: ffffffff837fc9c8 R13: ffffc90001687da8 R14: ffffc90001687de8 R15: ffffc90001687e38 FS: 00007feded47b6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000001058 CR3: 0000000104eb4000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: e7 ff out %eax,$0xff 2: d0 4c 8d 4c rorb 0x4c(%rbp,%rcx,4) 6: 24 60 and $0x60,%al 8: 85 c0 test %eax,%eax a: 0f 84 4c 03 00 00 je 0x35c 10: 48 63 d8 movslq %eax,%rbx 13: 45 31 ed xor %r13d,%r13d 16: 45 31 ff xor %r15d,%r15d 19: e9 4c fe ff ff jmp 0xfffffe6a 1e: 81 fe 13 3d 00 00 cmp $0x3d13,%esi 24: 0f 85 e1 00 00 00 jne 0x10b * 2a: 48 8b 91 58 10 00 00 mov 0x1058(%rcx),%rdx <-- trapping instruction 31: b9 20 00 00 00 mov $0x20,%ecx 36: 48 89 d7 mov %rdx,%rdi 39: f3 48 ab rep stos %rax,%es:(%rdi) 3c: 31 db xor %ebx,%ebx 3e: 45 rex.RB 3f: 31 .byte 0x31