diff mbox series

[v2] arm64: module: PLT allowed even !RANDOM_BASE

Message ID 20231024010954.6768-1-quic_aiquny@quicinc.com
State New
Headers show
Series [v2] arm64: module: PLT allowed even !RANDOM_BASE | expand

Commit Message

Aiqun(Maria) Yu Oct. 24, 2023, 1:09 a.m. UTC 
Module PLT feature can be enabled even when RANDOM_BASE is disabled.
Break BLT entry counts of relocation types will make module plt entry
allocation fail and finally exec format error for even correct and plt
allocation available modules.

Signed-off-by: Maria Yu <quic_aiquny@quicinc.com>
---
 arch/arm64/kernel/module-plts.c | 6 ------
 1 file changed, 6 deletions(-)


base-commit: 05d3ef8bba77c1b5f98d941d8b2d4aeab8118ef1
diff mbox series

Patch

diff --git a/arch/arm64/kernel/module-plts.c b/arch/arm64/kernel/module-plts.c
index bd69a4e7cd60..79200f21e123 100644
--- a/arch/arm64/kernel/module-plts.c
+++ b/arch/arm64/kernel/module-plts.c
@@ -167,9 +167,6 @@  static unsigned int count_plts(Elf64_Sym *syms, Elf64_Rela *rela, int num,
 		switch (ELF64_R_TYPE(rela[i].r_info)) {
 		case R_AARCH64_JUMP26:
 		case R_AARCH64_CALL26:
-			if (!IS_ENABLED(CONFIG_RANDOMIZE_BASE))
-				break;
-
 			/*
 			 * We only have to consider branch targets that resolve
 			 * to symbols that are defined in a different section.
@@ -269,9 +266,6 @@  static int partition_branch_plt_relas(Elf64_Sym *syms, Elf64_Rela *rela,
 {
 	int i = 0, j = numrels - 1;
 
-	if (!IS_ENABLED(CONFIG_RANDOMIZE_BASE))
-		return 0;
-
 	while (i < j) {
 		if (branch_rela_needs_plt(syms, &rela[i], dstidx))
 			i++;