kernel/trace/ftrace.c in the Linux kernel before 2.6.35.5, when debugfs is...
Vulnerability Description
kernel/trace/ftrace.c in the Linux kernel before 2.6.35.5, when debugfs is enabled, does not properly handle interaction between mutex possession and llseek operations, which allows local users to cause a denial of service (NULL pointer dereference and outage of all function tracing files) via an lseek call on a file descriptor associated with the set_ftrace_filter file.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35.5
- http://www.ubuntu.com/usn/USN-1041-1
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
- http://www.redhat.com/support/errata/RHSA-2010-0842.html
- http://www.vupen.com/english/advisories/2011/0298
- http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.html
- https://bugzilla.redhat.com/show_bug.cgi?id=631623
- http://secunia.com/advisories/42758
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9c55cb12c1c172e2d51e85fbb5a4796ca86b77e7
- http://www.securityfocus.com/bid/43684
- http://www.vupen.com/english/advisories/2011/0070
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CVSS Vectors
Weaknesses (CWE)
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MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.