CVE-2008-7256

Publication date 3 June 2010

Last updated 24 July 2024

Ubuntu priority

mm/shmem.c in the Linux kernel before 2.6.28-rc8, when strict overcommit is enabled and CONFIG_SECURITY is disabled, does not properly handle the export of shmemfs objects by knfsd, which allows attackers to cause a denial of service (NULL pointer dereference and knfsd crash) or possibly have unspecified other impact via unknown vectors. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-1643.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
linux	10.04 LTS lucid	Not affected
	9.10 karmic	Not affected
	9.04 jaunty	Not affected
	8.04 LTS hardy	Fixed 2.6.24-28.73
	6.06 LTS dapper	Not in release
linux-source-2.6.15	10.04 LTS lucid	Not in release
	9.10 karmic	Not in release
	9.04 jaunty	Not in release
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Fixed 2.6.15-55.86

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
linux	Upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1b79cd04fab80be61dcd2732e2423aafde9a4c1c Hardy: http://chinstrap.myasnchisdf.eu.org/~smb/CVEs/CVE-2008-7256/patches/hardy/linux/0002-nfsd-fix-vm-overcommit-crash-fix-2.txt
linux-source-2.6.15	Dapper: http://chinstrap.myasnchisdf.eu.org/~smb/CVEs/CVE-2008-7256/patches/dapper/linux/0002-nfsd-fix-vm-overcommit-crash-fix-2.txt

References

Related Ubuntu Security Notices (USN)

USN-966-1
Linux kernel vulnerabilities
4 August 2010

CVE-2008-7256

Status

Patch details

References

Related Ubuntu Security Notices (USN)

Other references