CVE-2011-2525

HIGH

Linux Kernel < 2.6.35 - Denial of Service via tc_fill_qdisc NULL Pointer Dereference

Title source: llm
STIX 2.1

Description

The qdisc_notify function in net/sched/sch_api.c in the Linux kernel before 2.6.35 does not prevent tc_fill_qdisc function calls referencing builtin (aka CQ_F_BUILTIN) Qdisc structures, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a crafted call.

References (7)

Core 7
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=720552
Third Party Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2011-1065.html
Broken Link mailing-list x_refsource_mlist
http://kerneltrap.org/mailarchive/linux-netdev/2010/5/21/6277805
Third Party Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2011-1163.html
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://openwall.com/lists/oss-security/2011/07/12/1

Scores

CVSS v3 7.8
EPSS 0.0050
EPSS Percentile 38.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-476
Status published
Products (2)
linux/linux_kernel < 2.6.35
redhat/enterprise_linux 4.0
Published Feb 02, 2012
Tracked Since Feb 18, 2026