ChangeSet 1.2164, 2004/11/19 08:47:13-08:00, akpm@osdl.org [PATCH] fix kobject varargs bug From: Gerd Knorr It uses the varargs list twice in a illegal way. That doesn't harm on i386 by pure luck, but blows things up on amd64 machines. Using var args list twice without calling va_start twice is illegal. Signed-off-by: Gerd Knorr Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman lib/kobject.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-) diff -Nru a/lib/kobject.c b/lib/kobject.c --- a/lib/kobject.c 2004-11-19 11:36:44 -08:00 +++ b/lib/kobject.c 2004-11-19 11:36:44 -08:00 @@ -232,11 +232,12 @@ va_list args; char * name; - va_start(args,fmt); /* * First, try the static array */ + va_start(args,fmt); need = vsnprintf(kobj->name,limit,fmt,args); + va_end(args); if (need < limit) name = kobj->name; else { @@ -249,7 +250,9 @@ error = -ENOMEM; goto Done; } + va_start(args,fmt); need = vsnprintf(name,limit,fmt,args); + va_end(args); /* Still? Give up. */ if (need >= limit) { @@ -266,7 +269,6 @@ /* Now, set the new name */ kobj->k_name = name; Done: - va_end(args); return error; }