David Howells e5ed4e08d8 rxrpc: Fix deadlock around release of dst cached on udp tunnel ... [ Upstream commit 5399d52233c47905bbf97dcbaa2d7a9cc31670ba ] AF_RXRPC sockets use UDP ports in encap mode. This causes socket and dst from an incoming packet to get stolen and attached to the UDP socket from whence it is leaked when that socket is closed. When a network namespace is removed, the wait for dst records to be cleaned up happens before the cleanup of the rxrpc and UDP socket, meaning that the wait never finishes. Fix this by moving the rxrpc (and, by dependence, the afs) private per-network namespace registrations to the device group rather than subsys group. This allows cached rxrpc local endpoints to be cleared and their UDP sockets closed before we try waiting for the dst records. The symptom is that lines looking like the following: unregister_netdevice: waiting for lo to become free get emitted at regular intervals after running something like the referenced syzbot test. Thanks to Vadim for tracking this down and work out the fix. Reported-by: syzbot+df400f2f24a1677cd7e0@syzkaller.appspotmail.com Reported-by: Vadim Fedorenko <vfedorenko@novek.ru> Fixes: 5271953cad ("rxrpc: Use the UDP encap_rcv hook") Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Vadim Fedorenko <vfedorenko@novek.ru> Link: https://lore.kernel.org/r/161196443016.3868642.5577440140646403533.stgit@warthog.procyon.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-02-10 09:29:13 +01:00
..
9p	fs: 9p: add generic splice_write file operation	2020-12-01 21:40:47 +01:00
adfs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-24 12:26:05 -07:00
affs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-24 12:26:05 -07:00
afs	rxrpc: Fix deadlock around release of dst cached on udp tunnel	2021-02-10 09:29:13 +01:00
autofs	autofs: harden ioctl table	2020-10-16 11:11:22 -07:00
befs	[PATCH] reduce boilerplate in fsid handling	2020-09-18 16:45:50 -04:00
bfs	bfs: don't use WARNING: string when it's just info.	2021-01-06 14:56:52 +01:00
btrfs	btrfs: fix possible free space tree corruption with online conversion	2021-02-03 23:28:40 +01:00
cachefiles	cachefiles: Drop superfluous readpages aops NULL check	2021-01-27 11:55:22 +01:00
ceph	ceph: fix inode refcount leak when ceph_fill_inode on non-I_NEW inode fails	2021-01-06 14:56:55 +01:00
cifs	cifs: do not fail __smb_send_rqst if non-fatal signals are pending	2021-01-27 11:55:13 +01:00
coda
configfs	fs: configfs: delete repeated words in comments	2020-10-16 11:11:19 -07:00
cramfs	[PATCH] reduce boilerplate in fsid handling	2020-09-18 16:45:50 -04:00
crypto	fscrypt: add fscrypt_is_nokey_name()	2020-12-26 16:02:43 +01:00
debugfs	debugfs: remove return value of debugfs_create_devm_seqfile()	2020-10-30 08:37:39 +01:00
devpts
dlm	networking changes for the 5.10 merge window	2020-10-15 18:42:13 -07:00
ecryptfs	mm, treewide: rename kzfree() to kfree_sensitive()	2020-08-07 11:33:22 -07:00
efivarfs	efivarfs: revert "fix memory leak in efivarfs_create()"	2020-11-25 16:55:02 +01:00
efs	[PATCH] reduce boilerplate in fsid handling	2020-09-18 16:45:50 -04:00
erofs	erofs: avoid using generic_block_bmap	2020-12-30 11:53:46 +01:00
exfat	exfat: Avoid allocating upcase table using kcalloc()	2020-12-26 16:02:38 +01:00
exportfs
ext2	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-24 12:26:05 -07:00
ext4	ext4: fix superblock checksum failure when setting password salt	2021-01-19 18:27:31 +01:00
f2fs	f2fs: fix race of pending_pages in decompression	2021-01-06 14:56:54 +01:00
fat	[PATCH] reduce boilerplate in fsid handling	2020-09-18 16:45:50 -04:00
freevxfs
fscache
fuse	fuse: fix bad inode	2021-01-09 13:46:24 +01:00
gfs2	gfs2: Fix deadlock between gfs2_{create_inode,inode_lookup} and delete_work_func	2020-12-01 00:21:10 +01:00
hfs	fs: Replace zero-length array with flexible-array member	2020-10-29 17:22:59 -05:00
hfsplus	fs: Replace zero-length array with flexible-array member	2020-10-29 17:22:59 -05:00
hostfs
hpfs	[PATCH] reduce boilerplate in fsid handling	2020-09-18 16:45:50 -04:00
hugetlbfs	hugetlbfs: prevent filesystem stacking of hugetlbfs	2020-08-12 10:57:56 -07:00
iomap	iomap: clean up writeback state logic on writepage error	2020-11-04 08:52:46 -08:00
isofs	fs: Replace zero-length array with flexible-array member	2020-10-29 17:22:59 -05:00
jbd2	jbd2: fix kernel-doc markups	2020-11-19 22:38:29 -05:00
jffs2	jffs2: Fix NULL pointer dereference in rp_size fs option parsing	2021-01-06 14:56:49 +01:00
jfs	jfs: Fix array index bounds check in dbAdjTree	2020-12-30 11:54:18 +01:00
kernfs	kernfs: wire up ->splice_read and ->splice_write	2021-01-27 11:55:29 +01:00
lockd	lockd: don't use interval-based rebinding over TCP	2020-12-30 11:53:30 +01:00
minix	[PATCH] reduce boilerplate in fsid handling	2020-09-18 16:45:50 -04:00
nfs	pNFS/NFSv4: Update the layout barrier when we schedule a layoutreturn	2021-02-03 23:28:47 +01:00
nfs_common	nfs_common: need lock during iterate through the list	2020-12-30 11:53:45 +01:00
nfsd	nfsd: Don't set eof on a truncated READ_PLUS	2021-01-27 11:55:05 +01:00
nilfs2	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-24 12:26:05 -07:00
nls
notify	fanotify: Fix sys_fanotify_mark() on native x86-32	2021-01-17 14:16:59 +01:00
ntfs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-24 12:26:05 -07:00
ocfs2	ocfs2: initialize ip_next_orphan	2020-11-14 11:26:04 -08:00
omfs	fs: omfs: use kmemdup() rather than kmalloc+memcpy	2020-09-22 23:39:45 -04:00
openpromfs
orangefs	orangefs: remove unnecessary assignment to variable ret	2020-08-04 15:01:58 -04:00
overlayfs	ovl: make ioctl() safe	2020-12-30 11:54:16 +01:00
proc	proc_sysctl: fix oops caused by incorrect command parameters	2021-01-27 11:55:14 +01:00
pstore	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
qnx4	[PATCH] reduce boilerplate in fsid handling	2020-09-18 16:45:50 -04:00
qnx6	[PATCH] reduce boilerplate in fsid handling	2020-09-18 16:45:50 -04:00
quota	quota: Don't overflow quota file offsets	2021-01-06 14:56:53 +01:00
ramfs	ramfs: fix nommu mmap with gaps in the page cache	2020-10-16 11:11:22 -07:00
reiserfs	reiserfs: add check for an invalid ih_entry_count	2021-01-06 14:56:52 +01:00
romfs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-24 12:26:05 -07:00
squashfs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-24 12:26:05 -07:00
sysfs	sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output	2020-10-02 12:02:30 +02:00
sysv	[PATCH] reduce boilerplate in fsid handling	2020-09-18 16:45:50 -04:00
tracefs
ubifs	ubifs: wbuf: Don't leak kernel memory to flash	2020-12-30 11:54:17 +01:00
udf	udf: fix the problem that the disc content is not displayed	2021-02-07 15:37:15 +01:00
ufs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-24 12:26:05 -07:00
unicode	unicode: Add utf8_casefold_hash	2020-09-10 14:03:31 -07:00
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	fs-verity: use smp_load_acquire() for ->i_verity_info	2020-07-21 16:02:41 -07:00
xfs	xfs: revert "xfs: fix rmap key and record comparison functions"	2020-11-19 15:17:50 -08:00
zonefs	zonefs: select CONFIG_CRC32	2021-01-17 14:17:03 +01:00
aio.c	vfs: separate __sb_start_write into blocking and non-blocking helpers	2020-11-10 16:53:07 -08:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c	binfmt_elf, binfmt_elf_fdpic: use a VMA list snapshot	2020-10-16 11:11:21 -07:00
binfmt_elf.c	fs: Replace zero-length array with flexible-array member	2020-10-29 17:22:59 -05:00
binfmt_em86.c
binfmt_flat.c	binfmt_flat: revert "binfmt_flat: don't offset the data start"	2020-08-24 08:49:13 +10:00
binfmt_misc.c
binfmt_script.c
block_dev.c	Revert "block: simplify set_init_blocksize" to regain lost performance	2021-02-03 23:28:45 +01:00
buffer.c	mm, memcg: rework remote charging API to support nesting	2020-10-18 09:27:09 -07:00
char_dev.c
compat_binfmt_elf.c
coredump.c	coredump: fix core_pattern parse error	2020-12-06 10:19:07 -08:00
d_path.c	fs: fix NULL dereference due to data race in prepend_path()	2020-10-14 14:54:45 -07:00
dax.c	fuse update for 5.10	2020-10-19 14:28:30 -07:00
dcache.c	vfs: Use sequence counter with associated spinlock	2020-07-29 16:14:27 +02:00
dcookies.c
direct-io.c	\n	2020-10-15 15:03:10 -07:00
drop_caches.c
eventfd.c
eventpoll.c	epoll: check for events when removing a timed out thread from the wait queue	2020-12-30 11:54:00 +01:00
exec.c	exec: Transform exec_update_mutex into a rw_semaphore	2021-01-09 13:46:24 +01:00
fcntl.c	fcntl: Fix potential deadlock in send_sig{io, urg}()	2021-01-06 14:56:53 +01:00
fhandle.c
file_table.c	task_work: cleanup notification modes	2020-10-17 15:05:30 -06:00
file.c	kernel/io_uring: cancel io_uring before task works	2021-01-30 13:55:18 +01:00
filesystems.c
fs_context.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
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	vfs: Use sequence counter with associated spinlock	2020-07-29 16:14:27 +02:00
fs_types.c
fs-writeback.c	fs: fix lazytime expiration handling in __writeback_single_inode()	2021-01-27 11:54:53 +01:00
fsopen.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
init.c	init: add an init_dup helper	2020-08-04 21:02:38 -04:00
inode.c	fs: Handle I_DONTCACHE in iput_final() instead of generic_drop_inode()	2020-12-30 11:53:49 +01:00
internal.h	fs: remove compat_sys_mount	2020-09-22 23:45:57 -04:00
io_uring.c	io_uring: fix wqe->lock/completion_lock deadlock	2021-02-03 23:28:41 +01:00
io-wq.c	io-wq: cancel request if it's asking for files and we don't have them	2020-11-04 10:22:56 -07:00
io-wq.h	io_uring: fix io_wqe->work_list corruption	2020-12-30 11:54:03 +01:00
ioctl.c	fs: remove ksys_ioctl	2020-07-31 08:16:01 +02:00
Kconfig	tmpfs: support 64-bit inums per-sb	2020-08-07 11:33:24 -07:00
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	libfs: fix error cast of negative value in simple_attr_write()	2020-11-22 10:48:22 -08:00
locks.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
Makefile	Refactored code for 5.10:	2020-10-23 11:33:41 -07:00
mbcache.c
mount.h
mpage.c
namei.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-24 12:26:05 -07:00
namespace.c	umount(2): move the flag validity checks first	2021-01-19 18:27:32 +01:00
no-block.c
nsfs.c
open.c	openat2: reject RESOLVE_BENEATH|RESOLVE_IN_ROOT	2020-12-30 11:54:24 +01:00
pipe.c	fs/pipe: allow sendfile() to pipe again	2021-01-27 11:55:29 +01:00
pnode.c
pnode.h	fs/namespace.c: WARN if mnt_count has become negative	2021-01-06 14:56:54 +01:00
posix_acl.c
proc_namespace.c	proc mountinfo: make splice available again	2020-12-30 11:54:02 +01:00
read_write.c	Refactored code for 5.10:	2020-10-23 11:33:41 -07:00
readdir.c	fs: remove ksys_getdents64	2020-07-31 08:16:00 +02:00
remap_range.c	vfs: move the remap range helpers to remap_range.c	2020-10-15 09:48:49 -07:00
select.c	poll: fix performance regression due to out-of-line __put_user()	2021-01-19 18:27:27 +01:00
seq_file.c	fix return values of seq_read_iter()	2020-11-15 22:12:53 -05:00
signalfd.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
splice.c	io_uring-5.10-2020-10-24	2020-10-24 12:40:18 -07:00
stack.c
stat.c	fs: remove KSTAT_QUERY_FLAGS	2020-09-26 22:55:05 -04:00
statfs.c	Add a "nosymfollow" mount option.	2020-08-27 16:06:47 -04:00
super.c	vfs: move __sb_{start,end}_write* to fs.h	2020-11-10 16:53:11 -08:00
sync.c
timerfd.c
userfaultfd.c	mm: remove the now-unnecessary mmget_still_valid() hack	2020-10-16 11:11:22 -07:00
utimes.c	fs: expose utimes_common	2020-07-31 08:16:01 +02:00
xattr.c	fs/xattr.c: fix kernel-doc warnings for setxattr & removexattr	2020-10-13 18:38:27 -07:00