[PATCH 1/1] kmemleak/module: only scan the existed data section

[Tiejun Chen]

We should only scan the sections containing data and it's size is not
zero as well.

Signed-off-by: Tiejun Chen <tiejun.chen@xxxxxxxxxxxxx>
---
 kernel/module.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/module.c b/kernel/module.c
index 12cfa2b..0b93c30 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2045,6 +2045,8 @@ static void kmemleak_load_module(struct module *mod, Elf_Ehdr *hdr,
 		if (strncmp(secstrings + sechdrs[i].sh_name, ".data", 5) != 0
 		    && strncmp(secstrings + sechdrs[i].sh_name, ".bss", 4) != 0)
 			continue;
+		if (sechdrs[i].sh_size == 0)
+			continue;
 
 		kmemleak_scan_area((void *)sechdrs[i].sh_addr,
 				   sechdrs[i].sh_size, GFP_KERNEL);
-- 
1.6.0.4

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