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| author | Kees Cook | 2009-11-08 18:37:00 +0100 |
|---|---|---|
| committer | James Morris | 2009-11-08 22:34:22 +0100 |
| commit | 0e1a6ef2dea88101b056b6d9984f3325c5efced3 (patch) | |
| tree | bef312c242dd472ca00f0dc8bcebee4f094a85e3 /security/security.c | |
| parent | tpm: autoload tpm_tis based on system PnP IDs (diff) | |
| download | kernel-qcow2-linux-0e1a6ef2dea88101b056b6d9984f3325c5efced3.tar.gz kernel-qcow2-linux-0e1a6ef2dea88101b056b6d9984f3325c5efced3.tar.xz kernel-qcow2-linux-0e1a6ef2dea88101b056b6d9984f3325c5efced3.zip | |
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 'security/security.c')
0 files changed, 0 insertions, 0 deletions