Jann Horn 429a22e776 coredump: rework elf/elf_fdpic vma_dump_size() into common helper ... At the moment, the binfmt_elf and binfmt_elf_fdpic code have slightly different code to figure out which VMAs should be dumped, and if so, whether the dump should contain the entire VMA or just its first page. Eliminate duplicate code by reworking the binfmt_elf version into a generic core dumping helper in coredump.c. As part of that, change the heuristic for detecting executable/library header pages to check whether the inode is executable instead of looking at the file mode. This is less problematic in terms of locking because it lets us avoid get_user() under the mmap_sem. (And arguably it looks nicer and makes more sense in generic code.) Adjust a little bit based on the binfmt_elf_fdpic version: ->anon_vma is only meaningful under CONFIG_MMU, otherwise we have to assume that the VMA has been written to. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Hugh Dickins <hughd@google.com> Link: http://lkml.kernel.org/r/20200827114932.3572699-5-jannh@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2020-10-16 11:11:21 -07:00
..
9p	bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag	2020-09-24 13:43:39 -06:00
adfs
affs	affs: fix basic permission bits to actually work	2020-08-31 12:20:31 +02:00
afs	block-5.10-2020-10-12	2020-10-13 12:12:44 -07:00
autofs	autofs: use __kernel_write() for the autofs pipe writing	2020-09-29 17:18:34 -07:00
befs
bfs
btrfs	block-5.10-2020-10-12	2020-10-13 12:12:44 -07:00
cachefiles
ceph
cifs	cifs: Fix incomplete memory allocation on setxattr path	2020-10-10 15:52:54 -07:00
coda
configfs	fs: configfs: delete repeated words in comments	2020-10-16 11:11:19 -07:00
cramfs
crypto	fscrypt: export fscrypt_d_revalidate()	2020-09-28 14:44:51 -07:00
debugfs	debugfs: Fix module state check condition	2020-09-04 18:12:52 +02:00
devpts
dlm	dlm for 5.10	2020-10-13 08:59:39 -07:00
ecryptfs
efivarfs	efivarfs: Replace invalid slashes with exclamation marks in dentries.	2020-09-25 23:29:04 +02:00
efs
erofs	erofs: remove unnecessary enum entries	2020-10-09 10:37:42 +08:00
exfat	exfat: fix use of uninitialized spinlock on error path	2020-10-07 14:27:13 +09:00
exportfs
ext2	\n	2020-10-15 14:56:15 -07:00
ext4	mm/readahead: make page_cache_ra_unbounded take a readahead_control	2020-10-16 11:11:16 -07:00
f2fs	mm/readahead: make page_cache_ra_unbounded take a readahead_control	2020-10-16 11:11:16 -07:00
fat
freevxfs
fscache
fuse	block-5.10-2020-10-12	2020-10-13 12:12:44 -07:00
gfs2	Fix memory leak on filesystem withdraw	2020-08-28 10:41:00 -07:00
hfs
hfsplus
hostfs
hpfs
hugetlbfs
iomap	iomap: Call inode_dio_end() before generic_write_sync()	2020-09-28 08:51:08 -07:00
isofs
jbd2
jffs2
jfs	fs: Introduce i_blocks_per_page	2020-09-21 08:59:26 -07:00
kernfs
lockd
minix
nfs	block-5.10-2020-10-12	2020-10-13 12:12:44 -07:00
nfs_common
nfsd	block: add a bdev_is_partition helper	2020-09-25 08:18:57 -06:00
nilfs2
nls
notify
ntfs	ntfs: add check for mft record size in superblock	2020-10-13 18:38:27 -07:00
ocfs2	ocfs2: fix potential soft lockup during fstrim	2020-10-13 18:38:27 -07:00
omfs
openpromfs
orangefs
overlayfs
proc	mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary	2020-10-13 18:38:35 -07:00
pstore
qnx4
qnx6
quota	\n	2020-10-15 14:56:15 -07:00
ramfs
reiserfs	reiserfs: Fix oops during mount	2020-10-01 11:15:31 +02:00
romfs
squashfs
sysfs	sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output	2020-10-02 12:02:30 +02:00
sysv
tracefs
ubifs	block-5.10-2020-10-12	2020-10-13 12:12:44 -07:00
udf	udf: Limit sparing table size	2020-09-29 17:21:54 +02:00
ufs
unicode
vboxsf	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2020-10-15 15:11:56 -07:00
verity
xfs	New code for 5.10:	2020-10-14 14:06:06 -07:00
zonefs
aio.c	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-12 16:35:51 -07:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf.c	coredump: rework elf/elf_fdpic vma_dump_size() into common helper	2020-10-16 11:11:21 -07:00
binfmt_elf_fdpic.c	coredump: rework elf/elf_fdpic vma_dump_size() into common helper	2020-10-16 11:11:21 -07:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
block_dev.c	block: add a bdget_part helper	2020-10-05 10:38:33 -06:00
buffer.c	fs: Don't invalidate page buffers in block_write_full_page()	2020-09-07 10:23:07 -06:00
char_dev.c
compat_binfmt_elf.c
coredump.c	coredump: rework elf/elf_fdpic vma_dump_size() into common helper	2020-10-16 11:11:21 -07:00
d_path.c	fs: fix NULL dereference due to data race in prepend_path()	2020-10-14 14:54:45 -07:00
dax.c	iomap: Change calling convention for zeroing	2020-09-21 08:59:27 -07:00
dcache.c
dcookies.c
direct-io.c	\n	2020-10-15 15:03:10 -07:00
drop_caches.c
eventfd.c
eventpoll.c	ep_create_wakeup_source(): dentry name can change under you...	2020-09-24 19:41:58 -04:00
exec.c	Char/Misc driver patches for 5.10-rc1	2020-10-15 10:01:51 -07:00
fcntl.c
fhandle.c
file.c	io_uring: don't rely on weak ->files references	2020-09-30 20:32:32 -06:00
file_table.c
filesystems.c
fs-writeback.c	block-5.10-2020-10-12	2020-10-13 12:12:44 -07:00
fs_context.c
fs_parser.c	fs_parse: mark fs_param_bad_value() as static	2020-10-13 18:38:27 -07:00
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
init.c
inode.c	fs: add a filesystem flag for THPs	2020-10-16 11:11:15 -07:00
internal.h	fs: remove compat_sys_mount	2020-09-22 23:45:57 -04:00
io-wq.c	io-wq: kill unused IO_WORKER_F_EXITING	2020-09-30 20:32:34 -06:00
io-wq.h	io_uring: add blkcg accounting to offloaded operations	2020-09-30 20:32:34 -06:00
io_uring.c	io_uring-5.10-2020-10-12	2020-10-13 12:36:21 -07:00
ioctl.c
Kconfig
Kconfig.binfmt
kernel_read_file.c	fs/kernel_file_read: Add "offset" arg for partial reads	2020-10-05 13:37:04 +02:00
libfs.c
locks.c
Makefile	Char/Misc driver patches for 5.10-rc1	2020-10-15 10:01:51 -07:00
mbcache.c
mount.h
mpage.c
namei.c	fs: remove the unused SB_I_MULTIROOT flag	2020-09-24 13:43:38 -06:00
namespace.c	Merge branch 'compat.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-12 16:44:57 -07:00
no-block.c
nsfs.c
open.c
pipe.c	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-11 11:11:35 -07:00
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-12 16:35:51 -07:00
readdir.c
select.c
seq_file.c
signalfd.c
splice.c	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-12 16:35:51 -07:00
stack.c
stat.c
statfs.c
super.c	bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag	2020-09-24 13:43:39 -06:00
sync.c
timerfd.c
userfaultfd.c
utimes.c
xattr.c	fs/xattr.c: fix kernel-doc warnings for setxattr & removexattr	2020-10-13 18:38:27 -07:00