[ptxdist] [PATCH] libpng: Version bump. 1.6.56 -> 1.6.57

Christian Melki
2026-04-10T17:19:55Z

Security fixes.
https://sourceforge.net/p/libpng/code/ci/libpng16/tree/CHANGES

Plugs CVE:
CVE-2026-34757: Use-after-free in png_set_PLTE, png_set_tRNS and png_set_hIST

Signed-off-by: Christian Melki <christian.melki@t2data.com>
---
rules/libpng.make | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/rules/libpng.make b/rules/libpng.make
index 43ad8c8eb..4079e2392 100644
--- a/rules/libpng.make
+++ b/rules/libpng.make
@@ -16,8 +16,8 @@ PACKAGES-$(PTXCONF_LIBPNG) += libpng
#
# Paths and names
#
-LIBPNG_VERSION := 1.6.56
-LIBPNG_MD5 := e30798a97361f11390a624b5b48c1c74
+LIBPNG_VERSION := 1.6.57
+LIBPNG_MD5 := 07cee8fbb9f4b91db5b36db02f4ccdcd
LIBPNG := libpng-$(LIBPNG_VERSION)
LIBPNG_SUFFIX := tar.xz
LIBPNG_URL := $(call ptx/mirror, SF, libpng/$(LIBPNG).$(LIBPNG_SUFFIX))
--
2.43.0