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authorDaniel Vetter <daniel.vetter@ffwll.ch>2012-05-08 13:39:59 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-05-08 13:39:59 +0200
commit5e13a0c5ec05d382b488a691dfb8af015b1dea1e (patch)
tree7a06dfa1f7661f8908193f2437b32452520221d3 /security/commoncap.c
parentb615b57a124a4af7b68196bc2fb8acc236041fa2 (diff)
parent4f256e8aa3eda15c11c3cec3ec5336e1fc579cbd (diff)
Merge remote-tracking branch 'airlied/drm-core-next' into drm-intel-next-queued
Backmerge of drm-next to resolve a few ugly conflicts and to get a few fixes from 3.4-rc6 (which drm-next has already merged). Note that this merge also restricts the stencil cache lra evict policy workaround to snb (as it should) - I had to frob the code anyway because the CM0_MASK_SHIFT define died in the masked bit cleanups. We need the backmerge to get Paulo Zanoni's infoframe regression fix for gm45 - further bugfixes from him touch the same area and would needlessly conflict. Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'security/commoncap.c')
-rw-r--r--security/commoncap.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/security/commoncap.c b/security/commoncap.c
index 0cf4b53480a..71a166a0597 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -29,6 +29,7 @@
#include <linux/securebits.h>
#include <linux/user_namespace.h>
#include <linux/binfmts.h>
+#include <linux/personality.h>
/*
* If a non-root user executes a setuid-root binary in
@@ -505,6 +506,11 @@ int cap_bprm_set_creds(struct linux_binprm *bprm)
}
skip:
+ /* if we have fs caps, clear dangerous personality flags */
+ if (!cap_issubset(new->cap_permitted, old->cap_permitted))
+ bprm->per_clear |= PER_CLEAR_ON_SETID;
+
+
/* Don't let someone trace a set[ug]id/setpcap binary with the revised
* credentials unless they have the appropriate permit
*/