| commit | 2c70c535915f621fe51508076804b4575171a23d | [log] [tgz] |
|---|---|---|
| author | Adam Litke <agl@us.ibm.com> | Fri Oct 19 19:05:10 2007 +0200 |
| committer | Adrian Bunk <bunk@kernel.org> | Fri Oct 19 19:05:10 2007 +0200 |
| tree | 6160dacf53faaba579478790c2d5643579706c30 | |
| parent | c19b3d848a376abb057d6c80788f424e4c565223 [diff] |
Don't allow the stack to grow into hugetlb reserved regions (CVE-2007-3739) When expanding the stack, we don't currently check if the VMA will cross into an area of the address space that is reserved for hugetlb pages. Subsequent faults on the expanded portion of such a VMA will confuse the low-level MMU code, resulting in an OOPS. Check for this. Signed-off-by: Adam Litke <agl@us.ibm.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>