diff options
Diffstat (limited to 'kernel/module.c')
-rw-r--r-- | kernel/module.c | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/kernel/module.c b/kernel/module.c index b049939177f6..cab4bce49c23 100644 --- a/kernel/module.c +++ b/kernel/module.c | |||
@@ -2431,10 +2431,10 @@ static void kmemleak_load_module(const struct module *mod, | |||
2431 | kmemleak_scan_area(mod, sizeof(struct module), GFP_KERNEL); | 2431 | kmemleak_scan_area(mod, sizeof(struct module), GFP_KERNEL); |
2432 | 2432 | ||
2433 | for (i = 1; i < info->hdr->e_shnum; i++) { | 2433 | for (i = 1; i < info->hdr->e_shnum; i++) { |
2434 | const char *name = info->secstrings + info->sechdrs[i].sh_name; | 2434 | /* Scan all writable sections that's not executable */ |
2435 | if (!(info->sechdrs[i].sh_flags & SHF_ALLOC)) | 2435 | if (!(info->sechdrs[i].sh_flags & SHF_ALLOC) || |
2436 | continue; | 2436 | !(info->sechdrs[i].sh_flags & SHF_WRITE) || |
2437 | if (!strstarts(name, ".data") && !strstarts(name, ".bss")) | 2437 | (info->sechdrs[i].sh_flags & SHF_EXECINSTR)) |
2438 | continue; | 2438 | continue; |
2439 | 2439 | ||
2440 | kmemleak_scan_area((void *)info->sechdrs[i].sh_addr, | 2440 | kmemleak_scan_area((void *)info->sechdrs[i].sh_addr, |
@@ -2769,24 +2769,11 @@ static void find_module_sections(struct module *mod, struct load_info *info) | |||
2769 | mod->trace_events = section_objs(info, "_ftrace_events", | 2769 | mod->trace_events = section_objs(info, "_ftrace_events", |
2770 | sizeof(*mod->trace_events), | 2770 | sizeof(*mod->trace_events), |
2771 | &mod->num_trace_events); | 2771 | &mod->num_trace_events); |
2772 | /* | ||
2773 | * This section contains pointers to allocated objects in the trace | ||
2774 | * code and not scanning it leads to false positives. | ||
2775 | */ | ||
2776 | kmemleak_scan_area(mod->trace_events, sizeof(*mod->trace_events) * | ||
2777 | mod->num_trace_events, GFP_KERNEL); | ||
2778 | #endif | 2772 | #endif |
2779 | #ifdef CONFIG_TRACING | 2773 | #ifdef CONFIG_TRACING |
2780 | mod->trace_bprintk_fmt_start = section_objs(info, "__trace_printk_fmt", | 2774 | mod->trace_bprintk_fmt_start = section_objs(info, "__trace_printk_fmt", |
2781 | sizeof(*mod->trace_bprintk_fmt_start), | 2775 | sizeof(*mod->trace_bprintk_fmt_start), |
2782 | &mod->num_trace_bprintk_fmt); | 2776 | &mod->num_trace_bprintk_fmt); |
2783 | /* | ||
2784 | * This section contains pointers to allocated objects in the trace | ||
2785 | * code and not scanning it leads to false positives. | ||
2786 | */ | ||
2787 | kmemleak_scan_area(mod->trace_bprintk_fmt_start, | ||
2788 | sizeof(*mod->trace_bprintk_fmt_start) * | ||
2789 | mod->num_trace_bprintk_fmt, GFP_KERNEL); | ||
2790 | #endif | 2777 | #endif |
2791 | #ifdef CONFIG_FTRACE_MCOUNT_RECORD | 2778 | #ifdef CONFIG_FTRACE_MCOUNT_RECORD |
2792 | /* sechdrs[0].sh_size is always zero */ | 2779 | /* sechdrs[0].sh_size is always zero */ |