From: Erik Olofsson <erik@olofsson.info>
Date: Thu, 6 Oct 2022 11:13:20 +0000 (+0200)
Subject: Fix out of bounds read in Windows symlink support
X-Git-Tag: v3.6.2~23^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F1786%2Fhead;p=thirdparty%2Flibarchive.git

Fix out of bounds read in Windows symlink support
---

diff --git a/libarchive/archive_write_disk_windows.c b/libarchive/archive_write_disk_windows.c
index c949bf9c3..5474de16b 100644
--- a/libarchive/archive_write_disk_windows.c
+++ b/libarchive/archive_write_disk_windows.c
@@ -2155,6 +2155,8 @@ check_symlinks(struct archive_write_disk *a)
 				return (ARCHIVE_FAILED);
 			}
 		}
+		if (!c)
+			break;
 		pn[0] = c;
 		pn++;
 	}