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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-18 10:55:28 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-18 10:55:28 -0800
commita2faf2fc534f57ba26bc4d613795236ed4f5fb1c (patch)
treed75c4daadb469c8f08c498532fbf1fff68879e69 /ipc
parent4351654e3ddf86a04966163dce4def586303e5cc (diff)
parent5155040ed349950e16c093ba8e65ad534994df2a (diff)
downloadlinux-a2faf2fc534f57ba26bc4d613795236ed4f5fb1c.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull (again) user namespace infrastructure changes from Eric Biederman: "Those bugs, those darn embarrasing bugs just want don't want to get fixed. Linus I just updated my mirror of your kernel.org tree and it appears you successfully pulled everything except the last 4 commits that fix those embarrasing bugs. When you get a chance can you please repull my branch" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: userns: Fix typo in description of the limitation of userns_install userns: Add a more complete capability subset test to commit_creds userns: Require CAP_SYS_ADMIN for most uses of setns. Fix cap_capable to only allow owners in the parent user namespace to have caps.
Diffstat (limited to 'ipc')
-rw-r--r--ipc/namespace.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/ipc/namespace.c b/ipc/namespace.c
index cf3386a51de..7c1fa451b0b 100644
--- a/ipc/namespace.c
+++ b/ipc/namespace.c
@@ -170,7 +170,8 @@ static void ipcns_put(void *ns)
static int ipcns_install(struct nsproxy *nsproxy, void *new)
{
struct ipc_namespace *ns = new;
- if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN))
+ if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN) ||
+ !nsown_capable(CAP_SYS_ADMIN))
return -EPERM;
/* Ditch state from the old ipc namespace */