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Eric W. Biederman e6a13c753f signal/cifs: Fix cifs_put_tcp_session to call send_sig instead of force_sig 
[ Upstream commit 72abe3bcf0 ]

The locking in force_sig_info is not prepared to deal with a task that
exits or execs (as sighand may change).  The is not a locking problem
in force_sig as force_sig is only built to handle synchronous
exceptions.

Further the function force_sig_info changes the signal state if the
signal is ignored, or blocked or if SIGNAL_UNKILLABLE will prevent the
delivery of the signal.  The signal SIGKILL can not be ignored and can
not be blocked and SIGNAL_UNKILLABLE won't prevent it from being
delivered.

So using force_sig rather than send_sig for SIGKILL is confusing
and pointless.

Because it won't impact the sending of the signal and and because
using force_sig is wrong, replace force_sig with send_sig.

Cc: Namjae Jeon <namjae.jeon@samsung.com>
Cc: Jeff Layton <jlayton@primarydata.com>
Cc: Steve French <smfrench@gmail.com>
Fixes: a5c3e1c725 ("Revert "cifs: No need to send SIGKILL to demux_thread during umount"")
Fixes: e7ddee9037 ("cifs: disable sharing session and tcon and add new TCP sharing code")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2020-01-27 14:50:51 +01:00
..
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
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afs afs: Fix double inc of vnode->cb_break 2020-01-27 14:50:49 +01:00
autofs autofs: fix a leak in autofs_expire_indirect() 2019-12-13 08:51:01 +01:00
befs
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bfs bfs: add sanity check at bfs_fill_super() 2018-12-01 09:37:27 +01:00
btrfs btrfs: fix memory leak in qgroup accounting 2020-01-23 08:21:31 +01:00
cachefiles fscache, cachefiles: remove redundant variable 'cache' 2018-12-17 09:24:40 +01:00
ceph ceph: return -EINVAL if given fsc mount option on kernel w/o support 2019-12-05 09:19:45 +01:00
cifs signal/cifs: Fix cifs_put_tcp_session to call send_sig instead of force_sig 2020-01-27 14:50:51 +01:00
coda coda: add error handling for fget 2019-08-06 19:06:51 +02:00
configfs configfs: fix a deadlock in configfs_symlink() 2019-11-12 19:20:47 +01:00
cramfs Cramfs: fix abad comparison when wrap-arounds occur 2018-11-13 11:08:55 -08:00
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 fs/devpts: always delete dcache dentry-s in dput() 2019-03-23 20:09:59 +01:00
dlm dlm: fix invalid cluster name warning 2019-12-13 08:52:23 +01:00
ecryptfs ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either 2019-11-20 18:45:18 +01:00
efivarfs efivars: Call guid_parse() against guid_t type of variable 2018-07-22 14:13:44 +02:00
efs
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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: check err when partial != NULL 2019-12-17 20:35:18 +01:00
ext4 ext4: iomap that extends beyond EOF should be marked dirty 2020-01-04 19:12:47 +01:00
f2fs f2fs: fix potential overflow 2020-01-17 19:47:13 +01:00
fat fat: work around race with userspace's read via blockdev while mounting 2019-10-07 18:57:14 +02:00
freevxfs
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fscache fscache: fix race between enablement and dropping of object 2018-12-17 09:24:40 +01:00
fuse fuse: verify attributes 2019-12-13 08:52:36 +01:00
gfs2 gfs2: fix glock reference problem in gfs2_trans_remove_revoke 2019-12-17 20:35:55 +01:00
hfs fs/hfs/extent.c: fix array out of bounds read of array extent 2019-12-01 09:17:10 +01:00
hfsplus hfsplus: update timestamps on truncate() 2019-12-01 09:17:09 +01:00
hostfs vfs: discard ATTR_ATTR_FLAG 2018-08-17 16:20:28 -07:00
hpfs hpfs: remove unnecessary checks on the value of r when assigning error code 2018-08-25 12:42:33 -07:00
hugetlbfs hugetlb: use same fault hash key for shared and private mappings 2019-05-22 07:37:40 +02:00
isofs isofs: reject hardware sector size > 2048 bytes 2018-08-21 11:37:41 +02:00
jbd2 jbd2: Fix statistics for the number of logged blocks 2020-01-04 19:12:48 +01:00
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
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nfs NFS: Don't interrupt file writeout due to fatal errors 2020-01-27 14:50:41 +01:00
nfs_common
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nfsd nfsd4: fix up replay_matches_cache() 2020-01-09 10:19:03 +01:00
nilfs2 nilfs2: convert to SPDX license tags 2018-09-04 16:45:02 -07:00
nls
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notify fs: avoid softlockups in s_inodes iterators 2020-01-12 12:17:20 +01:00
ntfs ntfs: mft: remove VLA usage 2018-08-17 16:20:27 -07:00
ocfs2 ocfs2: call journal flush to mark journal as empty after journal recovery when mount 2020-01-17 19:47:17 +01:00
omfs
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openpromfs
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orangefs orangefs: rate limit the client not running info message 2019-11-24 08:20:57 +01:00
overlayfs ovl: relax WARN_ON() on rename to self 2019-12-17 20:34:51 +01:00
proc mm, thp, proc: report THP eligibility for each vma 2019-12-17 20:35:45 +01:00
pstore pstore/ram: Write new dumps to start of recycled zones 2020-01-09 10:19:00 +01:00
qnx4
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qnx6
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quota fs: avoid softlockups in s_inodes iterators 2020-01-12 12:17:20 +01:00
ramfs
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reiserfs reiserfs: fix handling of -EOPNOTSUPP in reiserfs_for_each_xattr 2020-01-23 08:21:38 +01:00
romfs
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squashfs Squashfs: Compute expected length from inode size rather than block length 2018-08-02 09:34:02 -07:00
sysfs Driver core patches for 4.19-rc1 2018-08-18 11:44:53 -07:00
sysv sysv: return 'err' instead of 0 in __sysv_write_inode 2018-12-17 09:24:30 +01:00
tracefs tracefs: Annotate tracefs_ops with __ro_after_init 2018-07-31 11:32:44 -04:00
ubifs ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps 2020-01-09 10:19:09 +01:00
udf udf: Fix crash during mount 2019-11-20 18:46:04 +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: Sanity check flags of Q_XQUOTARM call 2020-01-27 14:49:51 +01:00
Kconfig
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Kconfig.binfmt kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
Makefile
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aio.c Fix aio_poll() races 2019-05-02 09:58:59 +02:00
anon_inodes.c
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attr.c
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bad_inode.c
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binfmt_aout.c
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binfmt_elf.c binfmt_elf: Do not move brk for INTERP-less ET_EXEC 2019-10-05 13:10:06 +02:00
binfmt_elf_fdpic.c
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binfmt_em86.c
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binfmt_flat.c fs/binfmt_flat.c: make load_flat_shared_library() work 2019-07-03 13:14:44 +02:00
binfmt_misc.c
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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 fs: fix guard_bio_eod to check for real EOD errors 2019-04-05 22:33:00 +02:00
char_dev.c chardev: Avoid potential use-after-free in 'chrdev_open()' 2020-01-14 20:06:57 +01:00
compat.c
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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
coredump.c
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d_path.c
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dax.c dax: dax_layout_busy_page() should not unmap cow pages 2019-08-16 10:12:52 +02:00
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 direct-io: allow direct writes to empty inodes 2019-03-05 17:58:50 +01:00
drop_caches.c fs: avoid softlockups in s_inodes iterators 2020-01-12 12:17:20 +01:00
eventfd.c
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eventpoll.c fs/epoll: drop ovflist branch prediction 2019-02-12 19:47:19 +01:00
exec.c sched/fair: Don't free p->numa_faults with concurrent readers 2019-08-04 09:30:56 +02:00
fcntl.c signal: Don't send signals to tasks that don't exist 2018-08-15 23:03:20 -05:00
fhandle.c
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file.c fs/file.c: initialize init_files.resize_wait 2019-04-05 22:32:59 +02:00
file_table.c overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
filesystems.c
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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
fs_pin.c
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fs_struct.c
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inode.c fs: avoid softlockups in s_inodes iterators 2020-01-12 12:17:20 +01:00
internal.h acct_on(): don't mess with freeze protection 2019-05-31 06:46:05 -07:00
ioctl.c vfs: fix FIGETBSZ ioctl on an overlayfs file 2018-11-21 09:19:14 +01:00
iomap.c iomap: partially revert 4721a60109 (simulated directio short read on EFAULT) 2019-12-13 08:52:56 +01:00
libfs.c Fix the locking in dcache_readdir() and friends 2019-10-17 13:45:35 -07:00
locks.c locks: print unsigned ino in /proc/locks 2020-01-09 10:19:00 +01:00
mbcache.c
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mount.h
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mpage.c mpage: mpage_readpages() should submit IO as read-ahead 2018-08-17 16:20:29 -07:00
namei.c Revert "vfs: Allow userns root to call mknod on owned filesystems." 2018-12-29 13:37:54 +01:00
namespace.c mnt: fix __detach_mounts infinite loop 2018-11-21 09:19:22 +01:00
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 access: avoid the RCU grace period for the temporary subjective credentials 2019-07-31 07:27:11 +02:00
pipe.c fs: prevent page refcount overflow in pipe_buf_get 2019-05-04 09:20:11 +02:00
pnode.c
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pnode.h
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posix_acl.c
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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
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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 Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
sync.c
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timerfd.c Merge branch 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-08-13 20:56:23 -07:00
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 sysfs: Do not return POSIX ACL xattrs via listxattr 2018-09-18 07:30:48 -04:00