From: B Horn <b...@horn.uk> The grub_dl_relocate_symbols() iterates through the sections in an ELF looking for relocation sections. According to the spec [1] the SHF_INFO_LINK flag should be set if the sh_info field is meant to be a section index.
[1] https://refspecs.linuxbase.org/elf/gabi4+/ch4.sheader.html Reported-by: B Horn <b...@horn.uk> Signed-off-by: B Horn <b...@horn.uk> Reviewed-by: Daniel Kiper <daniel.ki...@oracle.com> --- grub-core/kern/dl.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/grub-core/kern/dl.c b/grub-core/kern/dl.c index acc6ccad6..de8c3aa8d 100644 --- a/grub-core/kern/dl.c +++ b/grub-core/kern/dl.c @@ -623,6 +623,9 @@ grub_dl_relocate_symbols (grub_dl_t mod, void *ehdr) grub_dl_segment_t seg; grub_err_t err; + if (!(s->sh_flags & SHF_INFO_LINK)) + continue; + /* Find the target segment. */ for (seg = mod->segment; seg; seg = seg->next) if (seg->section == s->sh_info) -- 2.11.0 _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
