diff options
Diffstat (limited to 'meta/recipes-extended/libarchive/libarchive/bug929.patch')
| -rw-r--r-- | meta/recipes-extended/libarchive/libarchive/bug929.patch | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/meta/recipes-extended/libarchive/libarchive/bug929.patch b/meta/recipes-extended/libarchive/libarchive/bug929.patch deleted file mode 100644 index 2f3254c8dc..0000000000 --- a/meta/recipes-extended/libarchive/libarchive/bug929.patch +++ /dev/null @@ -1,38 +0,0 @@ -libarchive-3.3.2: Fix bug929 - -[No upstream tracking] -- https://github.com/libarchive/libarchive/pull/929 - -archive_read_support_format_cpio: header_newc(): Avoid overflow when reading corrupt -cpio archive - -A cpio "newc" archive with a namelength of "FFFFFFFF", if read on a -system with a 32-bit size_t, would result in namelength + name_pad -overflowing 32 bits and libarchive attempting to copy 2^32-1 bytes -from a 2-byte buffer, with appropriately hilarious results. - -Check for this overflow and fail; there's no legitimate reason for a -cpio archive to contain a file with a name over 4 billion characters -in length. - -Upstream-Status: Backport [https://github.com/libarchive/libarchive/commit/bac4659e0b970990e7e3f3a3d239294e96311630] -Bug: 929 -Signed-off-by: Andrej Valek <andrej.valek@siemens.com> - -diff --git a/libarchive/archive_read_support_format_cpio.c b/libarchive/archive_read_support_format_cpio.c -index ad9f782..1faa64d 100644 ---- a/libarchive/archive_read_support_format_cpio.c -+++ b/libarchive/archive_read_support_format_cpio.c -@@ -633,6 +633,13 @@ header_newc(struct archive_read *a, struct cpio *cpio, - /* Pad name to 2 more than a multiple of 4. */ - *name_pad = (2 - *namelength) & 3; - -+ /* Make sure that the padded name length fits into size_t. */ -+ if ((size_t)(*namelength + *name_pad) < *namelength) { -+ archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT, -+ "cpio archive has invalid namelength"); -+ return (ARCHIVE_FATAL); -+ } -+ - /* - * Note: entry_bytes_remaining is at least 64 bits and - * therefore guaranteed to be big enough for a 33-bit file |