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| author | Shuqi Zhang <zhangshuqi3@huawei.com> | 2022-05-25 11:01:20 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-18 11:30:48 +0100 |
| commit | a99ff9e90d9803f4f7f8bcd68165891f490526be (patch) | |
| tree | 5032798a22ca51b3c36458f9d0fbffb3f021e773 /fs | |
| parent | 01b688c9460b09384b4b35686a7d74a115139477 (diff) | |
| download | linux-stable-a99ff9e90d9803f4f7f8bcd68165891f490526be.tar.gz linux-stable-a99ff9e90d9803f4f7f8bcd68165891f490526be.tar.bz2 linux-stable-a99ff9e90d9803f4f7f8bcd68165891f490526be.zip | |
ext4: use kmemdup() to replace kmalloc + memcpy
[ Upstream commit 4efd9f0d120c55b08852ee5605dbb02a77089a5d ]
Replace kmalloc + memcpy with kmemdup()
Signed-off-by: Shuqi Zhang <zhangshuqi3@huawei.com>
Reviewed-by: Ritesh Harjani <ritesh.list@gmail.com>
Link: https://lore.kernel.org/r/20220525030120.803330-1-zhangshuqi3@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Stable-dep-of: a44e84a9b776 ("ext4: fix deadlock due to mbcache entry corruption")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/xattr.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 7195a7ff65a6..959fc3328c3a 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -1911,11 +1911,10 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode, unlock_buffer(bs->bh); ea_bdebug(bs->bh, "cloning"); - s->base = kmalloc(bs->bh->b_size, GFP_NOFS); + s->base = kmemdup(BHDR(bs->bh), bs->bh->b_size, GFP_NOFS); error = -ENOMEM; if (s->base == NULL) goto cleanup; - memcpy(s->base, BHDR(bs->bh), bs->bh->b_size); s->first = ENTRY(header(s->base)+1); header(s->base)->h_refcount = cpu_to_le32(1); s->here = ENTRY(s->base + offset); |