CVE-2011-2183

Severity: medium (CVSS 4.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-06-13 · updated 2026-06-16
Weakness: CWE-362

Description

Race condition in the scan_get_next_rmap_item function in mm/ksm.c in the Linux kernel before 2.6.39.3, when Kernel SamePage Merging (KSM) is enabled, allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via a crafted application.

Affected products

Linux kernel: through 2.6.39.2; 2.6.39, 2.6.39-rc1, 2.6.39-rc2, 2.6.39-rc3, 2.6.39-rc4, 2.6.39-rc5 (+3)

References

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.3
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2b472611a32a72f4a118c069c2d62a1a3f087afd
http://www.openwall.com/lists/oss-security/2011/06/06/1
https://bugzilla.redhat.com/show_bug.cgi?id=710338
https://github.com/torvalds/linux/commit/2b472611a32a72f4a118c069c2d62a1a3f087afd
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.3
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2b472611a32a72f4a118c069c2d62a1a3f087afd
http://www.openwall.com/lists/oss-security/2011/06/06/1
https://bugzilla.redhat.com/show_bug.cgi?id=710338
https://github.com/torvalds/linux/commit/2b472611a32a72f4a118c069c2d62a1a3f087afd

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