What’s Vulnerable › Vulnerabilities

CVE-2011-0711

• Severity: low (CVSS 2.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-03-01 · updated 2026-06-16
• Weakness: CWE-200

Description

The xfs_fs_geometry function in fs/xfs/xfs_fsops.c in the Linux kernel before 2.6.38-rc6-git3 does not initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via an FSGEOMETRY_V1 ioctl call.

Affected products

• Linux kernel: before 2.6.38; 2.6.38, 2.6.38-rc1, 2.6.38-rc2, 2.6.38-rc3, 2.6.38-rc4, 2.6.38-rc5 — fixed in 2.6.38
• RedHat Enterprise Linux Desktop: 5.0
• RedHat Enterprise Linux Server: 5.0
• RedHat Enterprise Linux Server Aus: 5.6
• RedHat Enterprise Linux Server Eus: 5.6
• RedHat Enterprise Linux Workstation: 5.0

How to fix

Upgrade to a fixed version: Linux kernel 2.6.38. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3a3675b7f23f83ca8c67c9c2b6edf707fd28d1ba
• http://openwall.com/lists/oss-security/2011/02/16/10
• http://openwall.com/lists/oss-security/2011/02/16/4
• http://osvdb.org/70950
• http://rhn.redhat.com/errata/RHSA-2011-0927.html
• http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.38-rc6-git3.log
• http://www.securityfocus.com/bid/46417
• https://bugzilla.redhat.com/show_bug.cgi?id=677260
• https://patchwork.kernel.org/patch/555461/
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3a3675b7f23f83ca8c67c9c2b6edf707fd28d1ba
• http://openwall.com/lists/oss-security/2011/02/16/10
• http://openwall.com/lists/oss-security/2011/02/16/4

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