Messages in this thread Patch in this message | | | From | Liao Chang <> | Subject | [PATCH] ARM: module: Reclaim the unwind list of module on kmalloc failed | Date | Thu, 3 Nov 2022 09:17:13 +0800 |
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When unwind table allocation failed, it needs to reclaim the unwind list of module to avoid potential NULL pointer exception and memory leakage.
Fixes: b6f21d14f1ac ("ARM: 9204/2: module: Add all unwind tables when load module") Signed-off-by: Liao Chang <liaochang1@huawei.com> Cc: Chen Zhongjin <chenzhongjin@huawei.com> --- arch/arm/kernel/module.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c index d59c36dc0494..cc637dcdcb10 100644 --- a/arch/arm/kernel/module.c +++ b/arch/arm/kernel/module.c @@ -485,6 +485,10 @@ int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs, s->sh_size, txt_sec->sh_addr, txt_sec->sh_size); + if (!table) { + module_arch_cleanup(mod); + return -ENOMEM; + } list_add(&table->mod_list, unwind_list); -- 2.17.1
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