The patch titled
parisc: sync compat getdents
has been added to the -mm tree. Its filename is
parisc-sync-compat-getdents-on-ia64-and-parisc.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: parisc: sync compat getdents
From: Alexandr Andreev <aandreev@xxxxxxxxxx>
Add VERIFY_WRITE check in the beginning like compat_sys_getdents() EFAULT on
parisc if put_user() fails.
Signed-off-by: Alexandr Andreev <aandreev@xxxxxxxxxx>
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxxx>
Cc: Kyle McMartin <kyle@xxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxx>
Cc: Grant Grundler <grundler@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/parisc/kernel/sys_parisc32.c | 10 ++++++++--
1 files changed, 8 insertions(+), 2 deletions(-)
diff -puN arch/ia64/ia32/sys_ia32.c~parisc-sync-compat-getdents-on-ia64-and-parisc arch/ia64/ia32/sys_ia32.c
diff -puN arch/parisc/kernel/sys_parisc32.c~parisc-sync-compat-getdents-on-ia64-and-parisc arch/parisc/kernel/sys_parisc32.c
--- a/arch/parisc/kernel/sys_parisc32.c~parisc-sync-compat-getdents-on-ia64-and-parisc
+++ a/arch/parisc/kernel/sys_parisc32.c
@@ -350,6 +350,10 @@ sys32_getdents (unsigned int fd, void __
struct getdents32_callback buf;
int error;
+ error = -EFAULT;
+ if (!access_ok(VERIFY_WRITE, dirent, count))
+ goto out;
+
error = -EBADF;
file = fget(fd);
if (!file)
@@ -366,8 +370,10 @@ sys32_getdents (unsigned int fd, void __
error = buf.error;
lastdirent = buf.previous;
if (lastdirent) {
- put_user(file->f_pos, &lastdirent->d_off);
- error = count - buf.count;
+ if (put_user(file->f_pos, &lastdirent->d_off))
+ error = -EFAULT;
+ else
+ error = count - buf.count;
}
out_putf:
_
Patches currently in -mm which might be from aandreev@xxxxxxxxxx are
ia64-sync-compat-getdents-on-ia64-and-parisc.patch
parisc-sync-compat-getdents-on-ia64-and-parisc.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
