deleted file mode 100644
@@ -1,66 +0,0 @@
-From c8c22869e780ff57c96b46939c3d79ff99395f87 Mon Sep 17 00:00:00 2001
-From: Lasse Collin <lasse.collin@tukaani.org>
-Date: Sun, 29 Mar 2026 19:11:21 +0300
-Subject: [PATCH] liblzma: Fix a buffer overflow in lzma_index_append()
-
-If lzma_index_decoder() was used to decode an Index that contained no
-Records, the resulting lzma_index had an invalid internal "prealloc"
-value. If lzma_index_append() was called on this lzma_index, too
-little memory would be allocated and a buffer overflow would occur.
-
-While this combination of the API functions is meant to work, in the
-real-world apps this call sequence is rare or might not exist at all.
-
-This bug is older than xz 5.0.0, so all stable releases are affected.
-
-Reported-by: GitHub user christos-spearbit
-
-CVE: CVE-2026-34743
-Upstream-Status: Backport [https://github.com/tukaani-project/xz/commit/c8c22869e780ff57c96b46939c3d79ff99395f87]
-Signed-off-by: Ross Burton <ross.burton@arm.com>
----
- src/liblzma/common/index.c | 21 +++++++++++++++++++++
- 1 file changed, 21 insertions(+)
-
-diff --git a/src/liblzma/common/index.c b/src/liblzma/common/index.c
-index 6add6a68..c4aadb9b 100644
---- a/src/liblzma/common/index.c
-+++ b/src/liblzma/common/index.c
-@@ -433,6 +433,26 @@ lzma_index_prealloc(lzma_index *i, lzma_vli records)
- if (records > PREALLOC_MAX)
- records = PREALLOC_MAX;
-
-+ // If index_decoder.c calls us with records == 0, it's decoding
-+ // an Index that has no Records. In that case the decoder won't call
-+ // lzma_index_append() at all, and i->prealloc isn't used during
-+ // the Index decoding either.
-+ //
-+ // Normally the first lzma_index_append() call from the Index decoder
-+ // would reset i->prealloc to INDEX_GROUP_SIZE. With no Records,
-+ // lzma_index_append() isn't called and the resetting of prealloc
-+ // won't occur either. Thus, if records == 0, use the default value
-+ // INDEX_GROUP_SIZE instead.
-+ //
-+ // NOTE: lzma_index_append() assumes i->prealloc > 0. liblzma <= 5.8.2
-+ // didn't have this check and could set i->prealloc = 0, which would
-+ // result in a buffer overflow if the application called
-+ // lzma_index_append() after decoding an empty Index. Appending
-+ // Records after decoding an Index is a rare thing to do, but
-+ // it is supposed to work.
-+ if (records == 0)
-+ records = INDEX_GROUP_SIZE;
-+
- i->prealloc = (size_t)(records);
- return;
- }
-@@ -685,6 +705,7 @@ lzma_index_append(lzma_index *i, const lzma_allocator *allocator,
- ++g->last;
- } else {
- // We need to allocate a new group.
-+ assert(i->prealloc > 0);
- g = lzma_alloc(sizeof(index_group)
- + i->prealloc * sizeof(index_record),
- allocator);
-2.43.0
-
similarity index 94%
rename from meta/recipes-extended/xz/xz_5.8.2.bb
rename to meta/recipes-extended/xz/xz_5.8.3.bb
@@ -26,10 +26,9 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=d38d562f6112174de93a9677682231b2 \
"
SRC_URI = "https://github.com/tukaani-project/xz/releases/download/v${PV}/xz-${PV}.tar.gz \
- file://0001-liblzma-Fix-a-buffer-overflow-in-lzma_index_append.patch \
file://run-ptest \
- "
-SRC_URI[sha256sum] = "ce09c50a5962786b83e5da389c90dd2c15ecd0980a258dd01f70f9e7ce58a8f1"
+ "
+SRC_URI[sha256sum] = "3d3a1b973af218114f4f889bbaa2f4c037deaae0c8e815eec381c3d546b974a0"
UPSTREAM_CHECK_REGEX = "releases/tag/v(?P<pver>\d+(\.\d+)+)"
UPSTREAM_CHECK_URI = "https://github.com/tukaani-project/xz/releases/"
Drop backported patch Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> --- ...buffer-overflow-in-lzma_index_append.patch | 66 ------------------- .../xz/{xz_5.8.2.bb => xz_5.8.3.bb} | 5 +- 2 files changed, 2 insertions(+), 69 deletions(-) delete mode 100644 meta/recipes-extended/xz/xz/0001-liblzma-Fix-a-buffer-overflow-in-lzma_index_append.patch rename meta/recipes-extended/xz/{xz_5.8.2.bb => xz_5.8.3.bb} (94%)