From cb9577958d85896303561d9cc8544885deb272be Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Wed, 30 May 2007 02:24:28 -0400 Subject: [PATCH] [PARISC] fix null ptr deref in unwind.c commit ffb45122766db220d0bf3d01848d575fbbcb6430 removed one too many args. kallsyms_lookup is not safe to call with a NULL *modname. Paper bag over the problem for the time being. Signed-off-by: Kyle McMartin --- arch/parisc/kernel/unwind.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c index 89c03707ecc..e70f57e2764 100644 --- a/arch/parisc/kernel/unwind.c +++ b/arch/parisc/kernel/unwind.c @@ -216,8 +216,10 @@ static void unwind_frame_regs(struct unwind_frame_info *info) /* Handle some frequent special cases.... */ { char symname[KSYM_NAME_LEN+1]; + char *modname; - kallsyms_lookup(info->ip, NULL, NULL, NULL, symname); + kallsyms_lookup(info->ip, NULL, NULL, &modname, + symname); dbg("info->ip = 0x%lx, name = %s\n", info->ip, symname); -- 2.11.4.GIT