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perf tools: Fix generation of pmu list
[cascardo/linux.git]
/
kernel
/
module.c
diff --git
a/kernel/module.c
b/kernel/module.c
index
a4e6097
..
4edbd9c
100644
(file)
--- a/
kernel/module.c
+++ b/
kernel/module.c
@@
-2429,7
+2429,8
@@
static int copy_and_check(struct load_info *info,
goto free_hdr;
}
- if (len < hdr->e_shoff + hdr->e_shnum * sizeof(Elf_Shdr)) {
+ if (hdr->e_shoff >= len ||
+ hdr->e_shnum * sizeof(Elf_Shdr) > len - hdr->e_shoff) {
err = -ENOEXEC;
goto free_hdr;
}