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CVE-2012-6647

Published: May 26, 2014

Modified: Aug 6, 2024

PUBLISHED

Description

The futex_wait_requeue_pi function in kernel/futex.c in the Linux kernel before 3.5.1 does not ensure that calls have two different futex addresses, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted FUTEX_WAIT_REQUEUE_PI command.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6f7b0a2a5c0fb03be7c25bd1745baa50582348ef

x_refsource_CONFIRM

https://github.com/torvalds/linux/commit/6f7b0a2a5c0fb03be7c25bd1745baa50582348ef

x_refsource_CONFIRM

https://bugzilla.redhat.com/show_bug.cgi?id=1097746

x_refsource_CONFIRM

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.1

x_refsource_CONFIRM

[oss-security] 20140514 Re: CVE request Linux kernel: forbid uaddr == uaddr2 in futex_wait_requeue_pi() to avoid null dereference

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