RHEL 6/7 server crashes due to third party module 'fileaccess_mod'

Solution Verified - Updated -

Issue

  • System crashing due to null pointer in netlink_workQueue_msg() in fileaccess_mod third party kernel module per the kernel buffer logs :

    BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
    IP: [<ffffffffa04b57c7>] netlink_workQueue_msg_send+0x127/0x780 [fileaccess_mod]
    PGD 0 
    Oops: 0000 [#1] SMP 
    last sysfs file: /sys/devices/system/cpu/online
    CPU 0 
    Modules linked in:  <snip>
    Pid: 3498, comm: nl_queue/0 Not tainted 2.6.32-642.6.2.el6.x86_64 #1 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform
    RIP: 0010:[<ffffffffa04b57c7>]  [<ffffffffa04b57c7>] netlink_workQueue_msg_send+0x127/0x780 [fileaccess_mod]
    
  • System crashing due to null pointer in setAddrRW_sysCall() in fileaccess_mod third party kernel module per the kernel buffer logs :

    BUG: unable to handle kernel NULL pointer dereference at            (null)
    IP: [<ffffffffc0d24155>] setAddrRW_sysCall+0x25/0x60 [fileaccess_mod]
    PGD 0 
    Oops: 0000 [#1] SMP 
    Modules linked in:  <snip>
    CPU 0 PID: 4026 Comm: MA / LPC Client Kdump: loaded Tainted: G      OE ------------ 3.10.0-862.el7.x86_64 #1
    Hardware name: <snip>
    task: ffff9e3ee3ad2f70 ti:ffff89e3eca674000 task.ti: ffff9e2eca674000
    RIP: 0010:[<ffffffffc0d24155>] ti: [<ffffffffc0d24155>] setAddrRW_sysCall+0x25/0x60 [fileaccess_mod]
    

Environment

  • RHEL 6
  • RHEL 7
  • Installed third party module 'fileaccess_mod'

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In