Dan Carpenter 686820fe14 fs/ntfs3: Fix an NULL dereference bug ...

[ Upstream commit b2dd7b953c ]

The issue here is when this is called from ntfs_load_attr_list().  The
"size" comes from le32_to_cpu(attr->res.data_size) so it can't overflow
on a 64bit systems but on 32bit systems the "+ 1023" can overflow and
the result is zero.  This means that the kmalloc will succeed by
returning the ZERO_SIZE_PTR and then the memcpy() will crash with an
Oops on the next line.

Fixes: be71b5cba2 ("fs/ntfs3: Add attrib operations")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-02-16 19:14:25 +01:00

..

lib

fs/ntfs3: Add missing header and guards to lib/ headers

2021-09-13 19:41:44 +03:00

attrib.c

fs/ntfs3: Fix NULL pointer dereference on error in attr_allocate_frame()

2023-09-28 15:04:03 +03:00

attrlist.c

fs/ntfs3: Use kvmalloc instead of kmalloc(... __GFP_NOWARN)

2023-09-28 15:03:56 +03:00

bitfunc.c

fs/ntfs3: Add ntfs_bitmap_weight_le function and refactoring

2022-11-14 19:50:42 +03:00

bitmap.c

fs/ntfs3: Allow repeated call to ntfs3_put_sbi

2023-09-28 15:03:59 +03:00

debug.h

fs/ntfs3. Add forward declarations for structs to debug.h

2021-09-13 19:41:43 +03:00

dir.c

fs/ntfs3: Fix directory element type detection

2023-09-28 15:04:06 +03:00

file.c

Merge tag 'mm-stable-2023-11-01-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-11-02 19:38:47 -10:00

frecord.c

Merge tag 'vfs-6.7.ctime' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs

2023-10-30 09:47:13 -10:00

fslog.c

fs/ntfs3: Avoid possible memory leak

2023-09-28 15:04:06 +03:00

fsntfs.c

fs/ntfs3: fix deadlock in mark_as_free_ex

2023-09-28 15:03:58 +03:00

index.c

fs/ntfs3: Fix possible null-pointer dereference in hdr_find_e()

2023-09-28 15:04:05 +03:00

inode.c

ntfs3: convert to new timestamp accessors

2023-10-18 14:08:24 +02:00

Kconfig

fs: add CONFIG_BUFFER_HEAD

2023-08-02 09:13:09 -06:00

lznt.c

fs/ntfs3: Code formatting

2023-07-03 00:21:27 +04:00

Makefile

fs/ntfs3: Add Kconfig, Makefile and doc

2021-08-13 07:56:37 -07:00

namei.c

Merge tag 'vfs-6.7.ctime' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs

2023-10-30 09:47:13 -10:00

ntfs_fs.h

fs/ntfs3: Fix an NULL dereference bug

2024-02-16 19:14:25 +01:00

ntfs.h

fs/ntfs3: Refactoring and comments

2023-09-28 15:04:01 +03:00

record.c

fs/ntfs3: Refactoring and comments

2023-09-28 15:04:01 +03:00

run.c

fs/ntfs3: Code formatting

2023-07-03 00:21:27 +04:00

super.c

exportfs: make ->encode_fh() a mandatory method for NFS export

2023-10-28 16:15:15 +02:00

upcase.c

fs/ntfs3: Add option "nocase"

2022-09-30 17:39:47 +03:00

xattr.c

Merge tag 'vfs-6.7.xattr' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs

2023-10-30 09:29:44 -10:00