diff options
| author | Kees Cook <kees.cook@canonical.com> | 2009-11-08 12:37:00 -0500 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-11-08 16:34:22 -0500 |
| commit | 0e1a6ef2dea88101b056b6d9984f3325c5efced3 (patch) | |
| tree | bef312c242dd472ca00f0dc8bcebee4f094a85e3 /lib/iomap.c | |
| parent | 31bde71c202722a76686c3cf69a254c8a912275a (diff) | |
sysctl: require CAP_SYS_RAWIO to set mmap_min_addr
Currently the mmap_min_addr value can only be bypassed during mmap when
the task has CAP_SYS_RAWIO. However, the mmap_min_addr sysctl value itself
can be adjusted to 0 if euid == 0, allowing a bypass without CAP_SYS_RAWIO.
This patch adds a check for the capability before allowing mmap_min_addr to
be changed.
Signed-off-by: Kees Cook <kees.cook@canonical.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'lib/iomap.c')
0 files changed, 0 insertions, 0 deletions