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Message-Id: <12102548671322-git-send-email-xiyou.wangcong@gmail.com> Date: Thu, 8 May 2008 21:52:33 +0800 From: WANG Cong <xiyou.wangcong@...il.com> To: LKML <linux-kernel@...r.kernel.org> Cc: Andrew Morton <akpm@...l.org>, WANG Cong <xiyou.wangcong@...il.com>, WANG Cong <wangcong@...ux.org>, Alexander Viro <viro@...iv.linux.org.uk> Subject: [Patch 8/9] fs/binfmt_elf.c: fix wrong return values create_elf_tables() returns 0 on success. But when strnlen_user() "fails", it returns 0 directly. So this is wrong. Signed-off-by: WANG Cong <wangcong@...ux.org> Cc: Alexander Viro <viro@...iv.linux.org.uk> --- diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index 43254e3..10f9642 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -256,7 +256,7 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, return -EFAULT; len = strnlen_user((void __user *)p, MAX_ARG_STRLEN); if (!len || len > MAX_ARG_STRLEN) - return 0; + return -EINVAL; p += len; } if (__put_user(0, argv)) @@ -268,7 +268,7 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, return -EFAULT; len = strnlen_user((void __user *)p, MAX_ARG_STRLEN); if (!len || len > MAX_ARG_STRLEN) - return 0; + return -EINVAL; p += len; } if (__put_user(0, envp)) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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