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-rw-r--r--src/shared/capability.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/shared/capability.c b/src/shared/capability.c
index 57f392a4da..915ceb9d9b 100644
--- a/src/shared/capability.c
+++ b/src/shared/capability.c
@@ -275,10 +275,10 @@ int drop_privileges(uid_t uid, gid_t gid, uint64_t keep_capabilities) {
if (keep_capabilities & (1ULL << i))
bits[j++] = i;
- /* don't keep too many bits */
- assert((keep_capabilities & (~1ULL << i)) == 0);
- /* don't throw away too many bits */
- assert(((keep_capabilities >> i) & (~1ULL >> i)) == 0);
+ /* use enough bits */
+ assert(i == 64 || (keep_capabilities >> i) == 0);
+ /* don't use too many bits */
+ assert(keep_capabilities & (1ULL << (i - 1)));
if (cap_set_flag(d, CAP_EFFECTIVE, j, bits, CAP_SET) < 0 ||
cap_set_flag(d, CAP_PERMITTED, j, bits, CAP_SET) < 0) {