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From f47672bed5905ae382e80b09dafca9a8da45aa67 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Tue, 19 Apr 2022 18:44:36 -0700
Subject: [PATCH] ppc/plt: do not free symbol libsym
delete_symbol_chain() will call free as well if sybol is non-null
it also fixes use-after-free warnings that compiler emits
Upstream-Status: Submitted [https://gitlab.com/cespedes/ltrace/-/merge_requests/2]
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
sysdeps/linux-gnu/ppc/plt.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/sysdeps/linux-gnu/ppc/plt.c b/sysdeps/linux-gnu/ppc/plt.c
index 5f81889..7c1c025 100644
--- a/sysdeps/linux-gnu/ppc/plt.c
+++ b/sysdeps/linux-gnu/ppc/plt.c
@@ -687,7 +687,6 @@ arch_elf_add_func_entry(struct process *proc, struct ltelf *lte,
if (libsym == NULL
|| library_symbol_init(libsym, addr, full_name, 1,
LS_TOPLT_NONE) < 0) {
- free(libsym);
delete_symbol_chain(libsym);
libsym = NULL;
fprintf(stderr, "Couldn't add symbol %s"
--
2.36.0
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