diff options
| author | Andrew Morton <akpm@osdl.org> | 2004-02-18 16:37:22 -0800 |
|---|---|---|
| committer | David S. Miller <davem@nuts.davemloft.net> | 2004-02-18 16:37:22 -0800 |
| commit | c03544ddab373e1b0a07eef7bc44a02dad224ab8 (patch) | |
| tree | 090b7fab6ebcaedcf0a3595fc328aa4d07c64522 /include/linux/compiler-gcc3.h | |
| parent | a177d62cba196bf5affec5f778b092f5d7c91f54 (diff) | |
[PATCH] prevent ptrace from altering page permissions
From: Roland McGrath <roland@redhat.com>
Under some circumstances, ptrace PEEK/POKE_TEXT can cause page permissions
to be permanently changed. Thsi causes changes in application behaviour
when run under gdb.
Fix that by only marking the pte as writeable if the vma is marked for
writing. A write fault thus unshares the page but doesn't necessarily make
it writeable.
Diffstat (limited to 'include/linux/compiler-gcc3.h')
0 files changed, 0 insertions, 0 deletions