[PATCH] x86, relocs: Ignore relocations in .notes section on walk_relocs

From: Guixiong Wei
Date: Sun Mar 17 2024 - 11:07:43 EST


The commit aaa8736370db ("x86, relocs: Ignore relocations in
notes section") only ignore .note section on print_absolute_relocs,
but it also need to add on walk_relocs to avoid relocations in .note
section.

Fixes: aaa8736370db ("x86, relocs: Ignore relocations in .notes section")
Fixes: 5ead97c84fa7 ("xen: Core Xen implementation")
Fixes: da1a679cde9b ("Add /sys/kernel/notes")
Signed-off-by: Guixiong Wei <weiguixiong@xxxxxxxxxxxxx>
---
arch/x86/tools/relocs.c | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
index b029fb81ebee..33844b33b8b9 100644
--- a/arch/x86/tools/relocs.c
+++ b/arch/x86/tools/relocs.c
@@ -746,6 +746,16 @@ static void walk_relocs(int (*process)(struct section *sec, Elf_Rel *rel,
if (!(sec_applies->shdr.sh_flags & SHF_ALLOC)) {
continue;
}
+
+ /*
+ * Do not perform relocations in .notes section; any
+ * values there are meant for pre-boot consumption (e.g.
+ * startup_xen).
+ */
+ if (sec_applies->shdr.sh_type == SHT_NOTE) {
+ continue;
+ }
+
sh_symtab = sec_symtab->symtab;
sym_strtab = sec_symtab->link->strtab;
for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Rel); j++) {
--
2.24.3 (Apple Git-128)