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Bug #4510

Crash & reboot loop when configure PPPoE server on PPPoE client interface

Added by Nestor Mahno about 5 years ago. Updated about 5 years ago.

Status:
Confirmed
Priority:
Normal
Assignee:
-
Category:
PPPoE Server
Target version:
-
Start date:
03/11/2015
Due date:
% Done:

0%

Estimated time:
Affected Version:
All
Affected Architecture:
All

Description

affected version: 2.2-RELEASE (i386) ; 2.1.5-RELEASE (i386)

prerequisite: WAN interface with PPPoE type configuration

steps to reproduce: Turn on a PPPoE server on WAN interface then "applay" button

checked: more then 10 systems (all with old Intel P4/86 processor)

some log strings:

Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address = 0x4
fault code = supervisor write, page not present
instruction pointer = 0x20:0xc0e2a04e
stack pointer = 0x28:0xecf3798c
frame pointer = 0x28:0xecf379c0
code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 6748 (php-fpm)

History

#1 Updated by Chris Buechler about 5 years ago

  • Subject changed from Crash & reboot loop when configure pppoe server on WAN interface to Crash & reboot loop when configure PPPoE server on PPPoE client interface
  • Status changed from New to Confirmed
  • Assignee deleted (Nestor Mahno)
  • Affected Version changed from 2.2 to All
  • Affected Architecture All added
  • Affected Architecture deleted (i386)

It's not valid to configure a PPPoE server on an interface that's a PPPoE client. We'll need to add input validation to prevent such a configuration.

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