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
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/579585 ↗
- 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://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 ↗