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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-10 14:57:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-10 14:57:19 -0800
commit5c395ae7033099fc657114ea997858aa622f08b2 (patch)
treef714c8d8db528274de2da4f8aa64b69af0d2aa5e /fs
parent49d41bae46f15da528ef9848fd7c9d38582aa8e9 (diff)
parente57e0d8e818512047fe379157c3f77f1b9fabffb (diff)
Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6
* 'linux-next' of git://git.infradead.org/ubifs-2.6: UBI: fix use-after-free on error path UBI: fix missing scrub when there is a bit-flip UBIFS: Use kmemdup rather than duplicating its implementation
Diffstat (limited to 'fs')
-rw-r--r--fs/ubifs/lpt.c6
-rw-r--r--fs/ubifs/tnc.c3
-rw-r--r--fs/ubifs/xattr.c6
3 files changed, 5 insertions, 10 deletions
diff --git a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c
index 6189c74d97f..66d59d0a140 100644
--- a/fs/ubifs/lpt.c
+++ b/fs/ubifs/lpt.c
@@ -1986,12 +1986,11 @@ again:
if (path[h].in_tree)
continue;
- nnode = kmalloc(sz, GFP_NOFS);
+ nnode = kmemdup(&path[h].nnode, sz, GFP_NOFS);
if (!nnode) {
err = -ENOMEM;
goto out;
}
- memcpy(nnode, &path[h].nnode, sz);
parent = nnode->parent;
parent->nbranch[nnode->iip].nnode = nnode;
path[h].ptr.nnode = nnode;
@@ -2004,12 +2003,11 @@ again:
const size_t sz = sizeof(struct ubifs_pnode);
struct ubifs_nnode *parent;
- pnode = kmalloc(sz, GFP_NOFS);
+ pnode = kmemdup(&path[h].pnode, sz, GFP_NOFS);
if (!pnode) {
err = -ENOMEM;
goto out;
}
- memcpy(pnode, &path[h].pnode, sz);
parent = pnode->parent;
parent->nbranch[pnode->iip].pnode = pnode;
path[h].ptr.pnode = pnode;
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index 06673864768..e14ee53159d 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -344,12 +344,11 @@ static int lnc_add(struct ubifs_info *c, struct ubifs_zbranch *zbr,
return err;
}
- lnc_node = kmalloc(zbr->len, GFP_NOFS);
+ lnc_node = kmemdup(node, zbr->len, GFP_NOFS);
if (!lnc_node)
/* We don't have to have the cache, so no error */
return 0;
- memcpy(lnc_node, node, zbr->len);
zbr->leaf = lnc_node;
return 0;
}
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index bf18f7a0454..85b27226875 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -138,12 +138,11 @@ static int create_xattr(struct ubifs_info *c, struct inode *host,
ui = ubifs_inode(inode);
ui->xattr = 1;
ui->flags |= UBIFS_XATTR_FL;
- ui->data = kmalloc(size, GFP_NOFS);
+ ui->data = kmemdup(value, size, GFP_NOFS);
if (!ui->data) {
err = -ENOMEM;
goto out_free;
}
- memcpy(ui->data, value, size);
inode->i_size = ui->ui_size = size;
ui->data_len = size;
@@ -204,12 +203,11 @@ static int change_xattr(struct ubifs_info *c, struct inode *host,
return err;
kfree(ui->data);
- ui->data = kmalloc(size, GFP_NOFS);
+ ui->data = kmemdup(value, size, GFP_NOFS);
if (!ui->data) {
err = -ENOMEM;
goto out_free;
}
- memcpy(ui->data, value, size);
inode->i_size = ui->ui_size = size;
ui->data_len = size;