[YOCTO #12791] According to struct elf32_hd, the e_shnum is section header number, and the index is e_shstrndx, not e_shnum.
This can fix segmention fault when handle libqb.so.0.18.2 from libqb_1.0.3. It fails to handle libqb.so.0.18.2 and get errors: Symbol section index outside of section numbers Then segmentation fault, this is because the e_shnum is 34, while e_shstrndx is 27 (it would be 33 when no errors), I've checked several elf files to confirm that the ones after e_shstrndx is NULL, so use e_shstrndx should be correct. Fixed: MACHINE="qemux86-64" IMAGE_INSTALL_append = " libqb" #libqp is from meta-openembedded $ bitbake core-image-minimal Segmention fault Signed-off-by: Robert Yang <[email protected]> --- ...01-src-dso.c-use-ehdr.e_shstrndx-as-index.patch | 39 ++++++++++++++++++++++ meta/recipes-devtools/prelink/prelink_git.bb | 4 ++- 2 files changed, 42 insertions(+), 1 deletion(-) create mode 100644 meta/recipes-devtools/prelink/prelink/0001-src-dso.c-use-ehdr.e_shstrndx-as-index.patch diff --git a/meta/recipes-devtools/prelink/prelink/0001-src-dso.c-use-ehdr.e_shstrndx-as-index.patch b/meta/recipes-devtools/prelink/prelink/0001-src-dso.c-use-ehdr.e_shstrndx-as-index.patch new file mode 100644 index 0000000..397c7d3 --- /dev/null +++ b/meta/recipes-devtools/prelink/prelink/0001-src-dso.c-use-ehdr.e_shstrndx-as-index.patch @@ -0,0 +1,39 @@ +From 107290910ff846532d944ddb78edda436bb6ae63 Mon Sep 17 00:00:00 2001 +From: Robert Yang <[email protected]> +Date: Wed, 15 Aug 2018 17:53:43 +0800 +Subject: [PATCH] src/dso.c: use ehdr.e_shstrndx as index + +According to struct elf32_hd, the e_shnum is section header number, and the +index is e_shstrndx, not e_shnum. + +This can fix segmention fault when handle libqb.so.0.18.2 from libqb_1.0.3. +It fails to handle libqb.so.0.18.2 and get errors: +Symbol section index outside of section numbers + +Then segmentation fault, this is because the e_shnum is 34, while e_shstrndx is +27 (it would be 33 when no errors), I've checked several elf files to confirm +that the ones after e_shstrndx is NULL, so use e_shstrndx should be correct. + +Upstream-Status: Submitted + +Signed-off-by: Robert Yang <[email protected]> +--- + src/dso.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/dso.c b/src/dso.c +index ae5e04d..c59d81f 100644 +--- a/src/dso.c ++++ b/src/dso.c +@@ -1659,7 +1659,7 @@ close_dso_1 (DSO *dso) + { + int i; + +- for (i = 1; i < dso->ehdr.e_shnum; ++i) ++ for (i = 1; i < dso->ehdr.e_shstrndx; ++i) + { + Elf_Scn *scn = dso->scn[i]; + Elf_Data *data = NULL; +-- +2.7.4 + diff --git a/meta/recipes-devtools/prelink/prelink_git.bb b/meta/recipes-devtools/prelink/prelink_git.bb index 0f6d16e..c5eaedd 100644 --- a/meta/recipes-devtools/prelink/prelink_git.bb +++ b/meta/recipes-devtools/prelink/prelink_git.bb @@ -31,7 +31,9 @@ SRC_URI = "git://git.yoctoproject.org/prelink-cross.git;branch=cross_prelink \ file://prelink.conf \ file://prelink.cron.daily \ file://prelink.default \ - file://macros.prelink" + file://macros.prelink \ + file://0001-src-dso.c-use-ehdr.e_shstrndx-as-index.patch \ +" UPSTREAM_CHECK_COMMITS = "1" TARGET_OS_ORIG := "${TARGET_OS}" -- 2.7.4 -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
