[uClinux-dev] [PATCH] FLAT: fix unmap len in load error path

Mike Frysinger vapier at gentoo.org
Wed May 26 04:43:41 EDT 2010


The data chunk is mmaped with 'len' which remains unchanged, so use that
when unmapping in the error path rather than trying to recalculate (and
incorrectly so) the value used originally.

Signed-off-by: Mike Frysinger <vapier at gentoo.org>
---
 fs/binfmt_flat.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 4959a0a..f7a4059 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -596,7 +596,7 @@ static int load_flat_file(struct linux_binprm * bprm,
 		if (IS_ERR_VALUE(result)) {
 			printk("Unable to read data+bss, errno %d\n", (int)-result);
 			do_munmap(current->mm, textpos, text_len);
-			do_munmap(current->mm, realdatastart, data_len + extra);
+			do_munmap(current->mm, realdatastart, len);
 			ret = result;
 			goto err;
 		}
-- 
1.7.1




More information about the uClinux-dev mailing list