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Revert "UBIFS: Fix potential integer overflow in allocation" 

commit 08acbdd6fd upstream.

This reverts commit 353748a359.
It bypassed the linux-mtd review process and fixes the issue not as it
should.

Cc: Kees Cook <keescook@chromium.org>
Cc: Silvio Cesare <silvio.cesare@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
Richard Weinberger 2018-07-01 23:20:50 +02:00 committed by Greg Kroah-Hartman
parent a230db38a9
commit 3259dd7176
1 changed files with 2 additions and 3 deletions
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5
fs/ubifs/journal.c
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@ -1283,11 +1283,10 @@ static int truncate_data_node(const struct ubifs_info *c, const struct inode *in
int *new_len)
{
void *buf;
int err, compr_type;
u32 dlen, out_len, old_dlen;
int err, dlen, compr_type, out_len, old_dlen;
out_len = le32_to_cpu(dn->size);
buf = kmalloc_array(out_len, WORST_COMPR_FACTOR, GFP_NOFS);
buf = kmalloc(out_len * WORST_COMPR_FACTOR, GFP_NOFS);
if (!buf)
return -ENOMEM;