Date: Wed, 9 Feb 2011 09:27:32 -0500 From: Dan Rosenberg <dan.j.rosenberg@...il.com> To: oss-security@...ts.openwall.com Subject: CVE request: kernel: btrfs heap overflow Commit bf5fc093c5b625e4259203f1cee7ca73488a5620 refactored btrfs_ioctl_space_info() and introduced security issues. Since they were all introduced at once and fixed at the same time, one CVE should suffice. Due to integer truncation or a signedness error in a typecasted comparison, an integer overflow in an allocation size calculation, and a failure to properly check bounds when copying data, it was possible for an unprivileged user to cause a denial-of-service due to writing to an invalid pointer (ZERO_SIZE_PTR) or cause a kernel heap overflow. -Dan  http://marc.info/?l=linux-kernel&m=129726078708425&w=2
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