Openwrt/tools/tar/patches/100-symlink-force-root-name.patch
Daniel Engberg 1d1dabdf0a tools/tar: Update to 1.31
Update tar to 1.31
Fixes CVE-2018-20482
Switch to tar.xz tarball
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Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
2019-02-10 20:47:58 +01:00

28 lines
830 B
Diff

Force root/root as names for uid0/gid0 instead of using the system
names. This helps make packed download tarballs more reproducible
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/src/create.c
+++ b/src/create.c
@@ -543,17 +543,8 @@ write_gnu_long_link (struct tar_stat_inf
union block *header;
header = start_private_header ("././@LongLink", size, 0);
- if (! numeric_owner_option)
- {
- static char *uname, *gname;
- if (!uname)
- {
- uid_to_uname (0, &uname);
- gid_to_gname (0, &gname);
- }
- UNAME_TO_CHARS (uname, header->header.uname);
- GNAME_TO_CHARS (gname, header->header.gname);
- }
+ UNAME_TO_CHARS ("root", header->header.uname);
+ GNAME_TO_CHARS ("root", header->header.gname);
strcpy (header->buffer + offsetof (struct posix_header, magic),
OLDGNU_MAGIC);