CVE-2008-7256

Severity: low (CVSS 1.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-06-03 · updated 2026-06-16

Description

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.

Affected products

Linux kernel: through 2.6.28; 2.6.0, 2.6.1, 2.6.2, 2.6.10, 2.6.11, 2.6.11.1 (+296)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1b79cd04fab80be61dcd2732e2423aafde9a4c1c
http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.28/ChangeLog-2.6.28-rc8
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
http://www.openwall.com/lists/oss-security/2010/05/27/1
https://bugzilla.redhat.com/show_bug.cgi?id=595970
https://exchange.xforce.ibmcloud.com/vulnerabilities/59224
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1b79cd04fab80be61dcd2732e2423aafde9a4c1c
http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.28/ChangeLog-2.6.28-rc8
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
http://www.openwall.com/lists/oss-security/2010/05/27/1
https://bugzilla.redhat.com/show_bug.cgi?id=595970
https://exchange.xforce.ibmcloud.com/vulnerabilities/59224

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