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Fix/null alloc overflow #32

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Merged
superturtlee merged 3 commits into from
Jun 30, 2026
Merged

Fix/null alloc overflow #32

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9ecd6b8
fix null check calloc daemon
Dere3046 Jun 30, 2026
1be880c
fix null check malloc consumer
Dere3046 Jun 30, 2026
ce7f54e
fix overflow push dmabufs
Dere3046 Jun 30, 2026
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4 changes: 4 additions & 0 deletions daemon/daemon.c
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Original file line number Diff line number Diff line change
Expand Up @@ -206,6 +206,10 @@ static void handle_new_connection(int listen_fd)
}

struct client *c = calloc(1, sizeof(*c));
if (!c) {
close(client_fd);
return;
}
c->ctrl_fd = client_fd;

if (hdr.type == CTRL_MSG_CONSUMER_HELLO) {
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5 changes: 5 additions & 0 deletions libdisplay_consumer/display_consumer.c
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,10 @@ void allocate_services(struct display_ctx *ctx, struct service_info *services, i
ctx->services = services;
ctx->num_services = num_services;
ctx->resources = (struct resources*)malloc(sizeof(struct resources) * num_services);
if (!ctx->resources) {
ctx->num_services = 0;
return;
}
for(int i=0;i<num_services;i++){
ctx->resources[i].service_type = services[i].type;
ctx->resources[i].type = -1;//unallocated
Expand Down Expand Up @@ -296,6 +300,7 @@ int set_screen_info(display_ctx *ctx, uint32_t width, uint32_t height, uint32_t

int push_dmabufs(display_ctx *ctx, const int *fds, const struct buf_info *infos, int count)
{
if (count > MAX_BUFS) count = MAX_BUFS;
memcpy(ctx->stored_fds, fds, count * sizeof(int));
memcpy(ctx->stored_infos, infos, count * sizeof(struct buf_info));
ctx->stored_count = count;
Expand Down