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Alexander Potapenko d16b0abe26 fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info() 
[ Upstream commit 1d605416fb ]

KMSAN reported uninitialized data being written to disk when dumping
core.  As a result, several kilobytes of kmalloc memory may be written
to the core file and then read by a non-privileged user.

Reported-by: sam <sunhaoyl@outlook.com>
Signed-off-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200419100848.63472-1-glider@google.com
Link: https://github.com/google/kmsan/issues/76
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-03 08:19:41 +02:00
..
9p
9p: avoid attaching writeback_fid on mmap with type PRIVATE
2019-10-11 18:21:13 +02:00
adfs
fs/adfs: super: fix use-after-free bug
2019-08-06 19:06:49 +02:00
affs
affs: fix a memory leak in affs_remount
2020-01-27 14:51:21 +01:00
afs
afs: Fix some tracing details
2020-04-02 15:28:19 +02:00
autofs
autofs: fix a leak in autofs_expire_indirect()
2019-12-13 08:51:01 +01:00
befs
…
bfs
…
btrfs
btrfs: transaction: Avoid deadlock due to bad initialization timing of fs_info::journal_info
2020-05-06 08:13:33 +02:00
cachefiles
cachefiles: Fix race between read_waiter and read_copier involving op->to_do
2020-06-03 08:19:29 +02:00
ceph
ceph: fix double unlock in handle_cap_export()
2020-05-27 17:37:34 +02:00
cifs
cifs: Fix null pointer check in cifs_read
2020-06-03 08:19:30 +02:00
coda
coda: add error handling for fget
2019-08-06 19:06:51 +02:00
configfs
configfs: fix config_item refcnt leak in configfs_rmdir()
2020-05-27 17:37:32 +02:00
cramfs
…
crypto
fscrypt: clean up some BUG_ON()s in block encryption/decryption
2019-07-26 09:14:02 +02:00
debugfs
debugfs: fix use-after-free on symlink traversal
2019-05-08 07:21:48 +02:00
devpts
…
dlm
dlm: fix invalid cluster name warning
2019-12-13 08:52:23 +01:00
ecryptfs
ecryptfs: replace BUG_ON with error handling code
2020-02-28 16:38:59 +01:00
efivarfs
…
efs
…
exofs
exofs_mount(): fix leaks on failure exits
2019-12-05 09:20:32 +01:00
exportfs
exportfs: fix 'passing zero to ERR_PTR()' warning
2020-01-27 14:50:02 +01:00
ext2
ext2: fix debug reference to ext2_xattr_cache
2020-04-23 10:30:21 +02:00
ext4
ext4: check for non-zero journal inum in ext4_calculate_overhead
2020-05-02 17:26:00 +02:00
f2fs
f2fs: fix to avoid memory leakage in f2fs_listxattr
2020-04-29 16:31:17 +02:00
fat
fat: fix uninit-memory access for partial initialized inode
2020-03-11 14:15:01 +01:00
freevxfs
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fscache
…
fuse
fuse: verify attributes
2019-12-13 08:52:36 +01:00
gfs2
gfs2: move privileged user check to gfs2_quota_lock_check
2020-06-03 08:19:28 +02:00
hfs
fs/hfs/extent.c: fix array out of bounds read of array extent
2019-12-01 09:17:10 +01:00
hfsplus
hfsplus: fix crash and filesystem corruption when deleting files
2020-04-17 10:48:52 +02:00
hostfs
…
hpfs
…
hugetlbfs
hugetlb: use same fault hash key for shared and private mappings
2019-05-22 07:37:40 +02:00
isofs
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jbd2
jbd2: improve comments about freeing data buffers whose page mapping is NULL
2020-04-21 09:03:06 +02:00
jffs2
jffs2: fix use-after-free on symlink traversal
2019-05-08 07:21:48 +02:00
jfs
jfs: fix bogus variable self-initialization
2020-01-27 14:50:33 +01:00
kernfs
kernfs: fix ino wrap-around detection
2019-12-13 08:52:43 +01:00
lockd
lockd: fix decoding of TEST results
2019-12-13 08:51:59 +01:00
minix
…
nfs
NFSv4: Fix fscache cookie aux_data to ensure change_attr is included
2020-05-20 08:18:43 +02:00
nfs_common
…
nfsd
nfsd: memory corruption in nfsd4_lock()
2020-05-02 17:25:50 +02:00
nilfs2
…
nls
…
notify
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:17:20 +01:00
ntfs
…
ocfs2
ocfs2: no need try to truncate file beyond i_size
2020-04-17 10:48:51 +02:00
omfs
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openpromfs
…
orangefs
help_next should increase position index
2020-02-24 08:34:53 +01:00
overlayfs
ovl: fix value of i_ino for lower hardlink corner case
2020-04-21 09:03:05 +02:00
proc
vmalloc: fix remap_vmalloc_range() bounds checks
2020-04-29 16:31:27 +02:00
pstore
pstore: pstore_ftrace_seq_next should increase position index
2020-04-17 10:48:47 +02:00
qnx4
…
qnx6
…
quota
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:17:20 +01:00
ramfs
…
reiserfs
reiserfs: prevent NULL pointer dereference in reiserfs_insert_item()
2020-02-24 08:34:52 +01:00
romfs
…
squashfs
…
sysfs
…
sysv
…
tracefs
…
ubifs
ubifs: remove broken lazytime support
2020-05-27 17:37:30 +02:00
udf
udf: Fix free space reporting for metadata and virtual partitions
2020-02-24 08:34:45 +01:00
ufs
ufs: fix braino in ufs_get_inode_gid() for solaris UFS flavour
2019-05-25 18:23:46 +02:00
xfs
xfs: fix partially uninitialized structure in xfs_reflink_remap_extent
2020-05-02 17:25:55 +02:00
aio.c
aio: prevent potential eventfd recursion on poll
2020-02-11 04:34:08 -08:00
anon_inodes.c
…
attr.c
…
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
2020-06-03 08:19:41 +02:00
binfmt_em86.c
…
binfmt_flat.c
fs/binfmt_flat.c: make load_flat_shared_library() work
2019-07-03 13:14:44 +02:00
binfmt_misc.c
…
binfmt_script.c
exec: load_script: Do not exec truncated interpreter path
2019-11-06 13:05:37 +01:00
block_dev.c
bdev: Refresh bdev size for disks without partitioning
2020-01-09 10:19:07 +01:00
buffer.c
ext4: use non-movable memory for superblock readahead
2020-04-23 10:30:12 +02:00
char_dev.c
chardev: Avoid potential use-after-free in 'chrdev_open()'
2020-01-14 20:06:57 +01:00
compat_binfmt_elf.c
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compat_ioctl.c
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
2020-01-09 10:19:07 +01:00
compat.c
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coredump.c
coredump: fix crash when umh is disabled
2020-05-14 07:57:21 +02:00
d_path.c
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dax.c
dax: pass NOWAIT flag to iomap_apply
2020-03-05 16:42:12 +01:00
dcache.c
dcache: sort the freeing-without-RCU-delay mess for good.
2019-05-25 18:23:26 +02:00
dcookies.c
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direct-io.c
…
drop_caches.c
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:17:20 +01:00
eventfd.c
eventfd: track eventfd_signal() recursion depth
2020-02-11 04:34:08 -08:00
eventpoll.c
…
exec.c
exec: Move would_dump into flush_old_exec
2020-05-20 08:18:50 +02:00
fcntl.c
…
fhandle.c
…
file_table.c
…
file.c
fix multiplication overflow in copy_fdtable()
2020-05-27 17:37:29 +02:00
filesystems.c
fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()
2020-04-17 10:48:51 +02:00
fs_pin.c
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fs_struct.c
…
fs-writeback.c
cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead
2019-11-12 19:21:20 +01:00
inode.c
futex: Fix inode life-time issue
2020-03-25 08:06:14 +01:00
internal.h
acct_on(): don't mess with freeze protection
2019-05-31 06:46:05 -07:00
ioctl.c
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iomap.c
iomap: partially revert 4721a60109 (simulated directio short read on EFAULT)
2019-12-13 08:52:56 +01:00
Kconfig
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Kconfig.binfmt
…
libfs.c
libfs: fix infoleak in simple_attr_read()
2020-04-02 15:28:21 +02:00
locks.c
locks: print unsigned ino in /proc/locks
2020-01-09 10:19:00 +01:00
Makefile
…
mbcache.c
…
mount.h
…
mpage.c
…
namei.c
namei: only return -ECHILD from follow_dotdot_rcu()
2020-03-05 16:42:20 +01:00
namespace.c
fs/namespace.c: fix mountpoint reference counter race
2020-04-29 16:31:26 +02:00
no-block.c
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nsfs.c
dcache: sort the freeing-without-RCU-delay mess for good.
2019-05-25 18:23:26 +02:00
open.c
cifs_atomic_open(): fix double-put on late allocation failure
2020-03-18 07:14:21 +01:00
pipe.c
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pnode.c
propagate_one(): mnt_set_mountpoint() needs mount_lock
2020-05-02 17:26:01 +02:00
pnode.h
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posix_acl.c
…
proc_namespace.c
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read_write.c
vfs: avoid problematic remapping requests into partial EOF block
2019-12-01 09:17:04 +01:00
readdir.c
filldir[64]: remove WARN_ON_ONCE() for bad directory entries
2020-01-04 19:13:26 +01:00
select.c
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seq_file.c
seq_file: fix problem when seeking mid-record
2019-08-25 10:47:43 +02:00
signalfd.c
…
splice.c
splice: only read in as much information as there is pipe buffer space
2019-12-17 20:35:43 +01:00
stack.c
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stat.c
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statfs.c
vfs: Fix EOVERFLOW testing in put_compat_statfs64
2019-10-11 18:21:39 +02:00
super.c
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sync.c
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timerfd.c
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userfaultfd.c
userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK
2020-01-04 19:13:18 +01:00
utimes.c
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xattr.c
…