commit 67af9f37413a2529ee144aa57def023a428dd996
from: Stefan Sperling <stsp@stsp.name>
via: Thomas Adam <thomas@xteddy.org>
date: Sat Feb 12 17:21:49 2022 UTC

fix double-free and double-close issues in error paths of got_packidx_open()

commit - a75b210eed1d491d23b0cfef8ac3a51607bf2c19
commit + 67af9f37413a2529ee144aa57def023a428dd996
blob - 69a1daf4a2c1047bb38b4801085ed055ac118786
blob + af8b3b6ea7ef7080ce1af924448188a64e05b5aa
--- lib/pack.c
+++ lib/pack.c
@@ -367,21 +367,16 @@ got_packidx_open(struct got_packidx **packidx,
 	p->fd = openat(dir_fd, relpath, O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
 	if (p->fd == -1) {
 		err = got_error_from_errno2("openat", relpath);
-		free(p);
 		goto done;
 	}
 
 	if (fstat(p->fd, &idx_sb) != 0) {
 		err = got_error_from_errno2("fstat", relpath);
-		close(p->fd);
-		free(p);
 		goto done;
 	}
 	p->len = idx_sb.st_size;
 	if (p->len < sizeof(p->hdr)) {
 		err = got_error(GOT_ERR_BAD_PACKIDX);
-		close(p->fd);
-		free(p);
 		goto done;
 	}