55 lines
1.4 KiB
Diff
55 lines
1.4 KiB
Diff
--- a/libcap/cap_alloc.c 2021-02-05 06:52:17.000000000 +0100
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+++ b/libcap/cap_alloc.c 2022-05-17 20:06:53.570560396 +0200
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@@ -123,6 +123,10 @@
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cap_iab_t cap_iab_init(void) {
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__u32 *base = calloc(1, sizeof(__u32) + sizeof(struct cap_iab_s));
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+ if (base == NULL) {
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+ _cap_debug("out of memory");
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+ return NULL;
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+ }
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*(base++) = CAP_IAB_MAGIC;
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return (cap_iab_t) base;
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}
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@@ -138,6 +142,10 @@
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const char * const *envp)
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{
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__u32 *data = calloc(1, sizeof(__u32) + sizeof(struct cap_launch_s));
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+ if (data == NULL) {
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+ _cap_debug("out of memory");
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+ return NULL;
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+ }
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*(data++) = CAP_LAUNCH_MAGIC;
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struct cap_launch_s *attr = (struct cap_launch_s *) data;
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attr->arg0 = arg0;
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--- a/libcap/cap_proc.c 2022-05-17 20:07:36.301803359 +0200
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+++ b/libcap/cap_proc.c 2022-05-17 20:06:59.238592623 +0200
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@@ -677,9 +677,25 @@
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*/
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cap_iab_t cap_iab_get_proc(void)
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{
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- cap_iab_t iab = cap_iab_init();
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- cap_t current = cap_get_proc();
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+ cap_iab_t iab;
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+ cap_t current;
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+
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+ iab = cap_iab_init();
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+ if (iab == NULL) {
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+ _cap_debug("no memory for IAB tuple");
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+ return NULL;
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+ }
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+
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+ current = cap_get_proc();
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+ if (current == NULL) {
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+ _cap_debug("no memory for cap_t");
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+ cap_free(iab);
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+ return NULL;
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+ }
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+
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cap_iab_fill(iab, CAP_IAB_INH, current, CAP_INHERITABLE);
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+ cap_free(current);
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+
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cap_value_t c;
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for (c = cap_max_bits(); c; ) {
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--c;
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