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execute: convert secure bits into mask properly

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C.f. http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5975c725dfd6f7d36f493ab1453fbdbd35c1f0e3
This commit is contained in:
Zbigniew Jędrzejewski-Szmek
2013-03-31 14:31:51 -04:00
parent 4dd1de72e8
commit cbb21cca09
2 changed files with 14 additions and 14 deletions
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src/core/execute.c
+8 -8
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@@ -671,9 +671,9 @@ static int enforce_user(const ExecContext *context, uid_t uid) {
/* First step: If we need to keep capabilities but
* drop privileges we need to make sure we keep our
* caps, whiel we drop privileges. */
* caps, while we drop privileges. */
if (uid != 0) {
int sb = context->secure_bits|SECURE_KEEP_CAPS;
int sb = context->secure_bits | 1<<SECURE_KEEP_CAPS;
if (prctl(PR_GET_SECUREBITS) != sb)
if (prctl(PR_SET_SECUREBITS, sb) < 0)
@@ -1963,12 +1963,12 @@ void exec_context_dump(ExecContext *c, FILE* f, const char *prefix) {
if (c->secure_bits)
fprintf(f, "%sSecure Bits:%s%s%s%s%s%s\n",
prefix,
(c->secure_bits & SECURE_KEEP_CAPS) ? " keep-caps" : "",
(c->secure_bits & SECURE_KEEP_CAPS_LOCKED) ? " keep-caps-locked" : "",
(c->secure_bits & SECURE_NO_SETUID_FIXUP) ? " no-setuid-fixup" : "",
(c->secure_bits & SECURE_NO_SETUID_FIXUP_LOCKED) ? " no-setuid-fixup-locked" : "",
(c->secure_bits & SECURE_NOROOT) ? " noroot" : "",
(c->secure_bits & SECURE_NOROOT_LOCKED) ? "noroot-locked" : "");
(c->secure_bits & 1<<SECURE_KEEP_CAPS) ? " keep-caps" : "",
(c->secure_bits & 1<<SECURE_KEEP_CAPS_LOCKED) ? " keep-caps-locked" : "",
(c->secure_bits & 1<<SECURE_NO_SETUID_FIXUP) ? " no-setuid-fixup" : "",
(c->secure_bits & 1<<SECURE_NO_SETUID_FIXUP_LOCKED) ? " no-setuid-fixup-locked" : "",
(c->secure_bits & 1<<SECURE_NOROOT) ? " noroot" : "",
(c->secure_bits & 1<<SECURE_NOROOT_LOCKED) ? "noroot-locked" : "");
if (c->capability_bounding_set_drop) {
unsigned long l;