CVE-2010-1636

Severity: low (CVSS 2.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2010-06-08 · updated 2026-06-16
Weakness: CWE-200

Description

The btrfs_ioctl_clone function in fs/btrfs/ioctl.c in the btrfs functionality in the Linux kernel 2.6.29 through 2.6.32, and possibly other versions, does not ensure that a cloned file descriptor has been opened for reading, which allows local users to read sensitive information from a write-only file descriptor.

Affected products

Linux kernel: 2.6.29, 2.6.29.1, 2.6.29.2, 2.6.29.3, 2.6.29.4, 2.6.29.5 (+27)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=5dc6416414fb3ec6e2825fd4d20c8bf1d7fe0395
http://www.openwall.com/lists/oss-security/2010/05/18/10
http://www.openwall.com/lists/oss-security/2010/05/18/2
http://www.openwall.com/lists/oss-security/2010/05/25/8
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/579585
https://bugzilla.redhat.com/show_bug.cgi?id=593226
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=5dc6416414fb3ec6e2825fd4d20c8bf1d7fe0395
http://www.openwall.com/lists/oss-security/2010/05/18/10
http://www.openwall.com/lists/oss-security/2010/05/18/2
http://www.openwall.com/lists/oss-security/2010/05/25/8
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/579585
https://bugzilla.redhat.com/show_bug.cgi?id=593226

Get alerted when CVE-2010-1636 or the next vulnerability affects your stack