Paulo Alcantara (SUSE) 0a5a98863c cifs: Fix memory allocation in __smb2_handle_cancelled_cmd() ... __smb2_handle_cancelled_cmd() is called under a spin lock held in cifs_mid_q_entry_release(), so make its memory allocation GFP_ATOMIC. This issue was observed when running xfstests generic/028: [ 1722.589204] CIFS VFS: \\192.168.30.26 Cancelling wait for mid 72064 cmd: 5 [ 1722.590687] CIFS VFS: \\192.168.30.26 Cancelling wait for mid 72065 cmd: 17 [ 1722.593529] CIFS VFS: \\192.168.30.26 Cancelling wait for mid 72066 cmd: 6 [ 1723.039014] BUG: sleeping function called from invalid context at mm/slab.h:565 [ 1723.040710] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 30877, name: cifsd [ 1723.045098] CPU: 3 PID: 30877 Comm: cifsd Not tainted 5.5.0-rc4+ #313 [ 1723.046256] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba527-rebuilt.opensuse.org 04/01/2014 [ 1723.048221] Call Trace: [ 1723.048689] dump_stack+0x97/0xe0 [ 1723.049268] ___might_sleep.cold+0xd1/0xe1 [ 1723.050069] kmem_cache_alloc_trace+0x204/0x2b0 [ 1723.051051] __smb2_handle_cancelled_cmd+0x40/0x140 [cifs] [ 1723.052137] smb2_handle_cancelled_mid+0xf6/0x120 [cifs] [ 1723.053247] cifs_mid_q_entry_release+0x44d/0x630 [cifs] [ 1723.054351] ? cifs_reconnect+0x26a/0x1620 [cifs] [ 1723.055325] cifs_demultiplex_thread+0xad4/0x14a0 [cifs] [ 1723.056458] ? cifs_handle_standard+0x2c0/0x2c0 [cifs] [ 1723.057365] ? kvm_sched_clock_read+0x14/0x30 [ 1723.058197] ? sched_clock+0x5/0x10 [ 1723.058838] ? sched_clock_cpu+0x18/0x110 [ 1723.059629] ? lockdep_hardirqs_on+0x17d/0x250 [ 1723.060456] kthread+0x1ab/0x200 [ 1723.061149] ? cifs_handle_standard+0x2c0/0x2c0 [cifs] [ 1723.062078] ? kthread_create_on_node+0xd0/0xd0 [ 1723.062897] ret_from_fork+0x3a/0x50 Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz> Fixes: 9150c3adbf ("CIFS: Close open handle after interrupted close") Cc: Stable <stable@vger.kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>		2020-01-26 19:24:17 -06:00
..
asn1.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
cache.c	cifs: use 64-bit timestamps for fscache	2018-08-07 14:15:41 -05:00
cifs_debug.c	cifs: dump channel info in DebugData	2019-11-25 01:17:12 -06:00
cifs_debug.h	cifs: add a debug macro that prints \\server\share for errors	2019-09-16 11:43:38 -05:00
cifs_dfs_ref.c	cifs: Fix mount options set in automount	2020-01-26 19:24:16 -06:00
cifs_fs_sb.h	smb3: add mount option to allow RW caching of share accessed by only 1 client	2019-09-16 11:43:38 -05:00
cifs_ioctl.h	smb3: allow decryption keys to be dumped by admin for debugging	2019-09-21 06:02:26 -05:00
cifs_spnego.c	cifs: switch servers depending on binding state	2019-11-25 01:16:30 -06:00
cifs_spnego.h
cifs_unicode.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
cifs_unicode.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
cifs_uniupr.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
cifsacl.c	smb3: fix mode passed in on create for modetosid mount option	2019-12-06 14:15:52 -06:00
cifsacl.h	smb3: fix mode passed in on create for modetosid mount option	2019-12-06 14:15:52 -06:00
cifsencrypt.c	fs: cifs: switch to RC4 library interface	2019-06-20 14:19:55 +08:00
cifsfs.c	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-12-06 09:06:58 -08:00
cifsfs.h	cifs: update internal module version number	2019-11-25 10:00:02 -06:00
cifsglob.h	cifs: Optimize readdir on reparse points	2019-12-23 09:04:44 -06:00
cifspdu.h	smb3: missing defines and structs for reparse point handling	2018-11-02 14:09:41 -05:00
cifsproto.h	cifs: use compounding for open and first query-dir for readdir()	2020-01-26 19:24:16 -06:00
cifsroot.c	cifs: cifsroot: add more err checking	2019-09-16 11:43:39 -05:00
cifssmb.c	fs/cifs/cifssmb.c: use true,false for bool variable	2020-01-26 19:24:16 -06:00
connect.c	cifs: Fix lookup of SMB connections on multichannel	2019-12-04 11:50:32 -06:00
dfs_cache.c	cifs: fix unitialized variable poential problem with network I/O cache lock patch	2020-01-26 19:24:16 -06:00
dfs_cache.h	cifs: Fix DFS cache refresher for DFS links	2019-05-07 23:24:54 -05:00
dir.c	CIFS: Return directly after a failed build_path_from_dentry() in cifs_do_create()	2019-11-25 01:14:53 -06:00
dns_resolve.c	keys: Pass the network namespace into request_key mechanism	2019-06-27 23:02:12 +01:00
dns_resolve.h
export.c	docs: fs: convert docs without extension to ReST	2019-07-31 13:31:05 -06:00
file.c	cifs: Don't use iov_iter::type directly	2020-01-26 19:24:16 -06:00
fscache.c	cifs: use 64-bit timestamps for fscache	2018-08-07 14:15:41 -05:00
fscache.h	cifs: use 64-bit timestamps for fscache	2018-08-07 14:15:41 -05:00
inode.c	fs: cifs: Fix atime update check vs mtime	2019-12-02 15:15:35 -06:00
ioctl.c	smb3: allow decryption keys to be dumped by admin for debugging	2019-09-21 06:02:26 -05:00
Kconfig	various cifs/smb3 fixes (including for share deleted cases) and features including improved encrypted read performance, and various debugging improvements	2019-09-19 10:32:16 -07:00
link.c	SMB3: Clean up query symlink when reparse point	2019-05-07 23:24:55 -05:00
Makefile	cifs: Add support for root file systems	2019-09-16 11:43:38 -05:00
misc.c	CIFS: Properly process SMB3 lease breaks	2019-11-25 01:17:12 -06:00
netmisc.c	fs: cifs: mute -Wunused-const-variable message	2019-10-06 22:04:35 -05:00
nterr.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61	2019-05-24 17:36:45 +02:00
nterr.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61	2019-05-24 17:36:45 +02:00
ntlmssp.h	cifs: dynamic allocation of ntlmssp blob	2016-06-23 23:45:07 -05:00
readdir.c	cifs: Optimize readdir on reparse points	2019-12-23 09:04:44 -06:00
rfc1002pdu.h
sess.c	cifs: fix possible uninitialized access and race on iface_list	2019-12-04 11:51:18 -06:00
smb1ops.c	CIFS: Properly process SMB3 lease breaks	2019-11-25 01:17:12 -06:00
smb2file.c	cifs: Adjust indentation in smb2_open_file	2019-12-23 09:04:44 -06:00
smb2glob.h	cifs: change SMB2_OP_RENAME and SMB2_OP_HARDLINK to use compounding	2018-10-23 21:16:04 -05:00
smb2inode.c	SMB3: Fix crash in SMB2_open_init due to uninitialized field in compounding path	2019-12-13 00:49:38 -06:00
smb2maperror.c	smb3: improve handling of share deleted (and share recreated)	2019-09-16 11:43:38 -05:00
smb2misc.c	cifs: Fix memory allocation in __smb2_handle_cancelled_cmd()	2020-01-26 19:24:17 -06:00
smb2ops.c	cifs: set correct max-buffer-size for smb2_ioctl_init()	2020-01-26 19:24:16 -06:00
smb2pdu.c	cifs: create a helper function to parse the query-directory response buffer	2020-01-26 19:24:16 -06:00
smb2pdu.h	cifs: prepare SMB2_query_directory to be used with compounding	2020-01-26 19:24:16 -06:00
smb2proto.h	cifs: prepare SMB2_query_directory to be used with compounding	2020-01-26 19:24:16 -06:00
smb2status.h	cifs: don't use __constant_cpu_to_le32()	2019-05-07 23:24:54 -05:00
smb2transport.c	cifs: Always update signing key of first channel	2019-11-25 09:59:28 -06:00
smbdirect.c	cifs: smbd: Only queue work for error recovery on memory registration	2019-11-25 01:16:30 -06:00
smbdirect.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
smbencrypt.c	fs: cifs: move from the crypto cipher API to the new DES library interface	2019-08-22 14:57:34 +10:00
smberr.h
smbfsctl.h	smb3: Add missing reparse tags	2019-09-24 23:31:32 -05:00
trace.c	smb3: Cleanup license mess	2019-01-24 09:37:33 -06:00
trace.h	smb3: add missing worker function for SMB3 change notify	2019-09-16 11:43:39 -05:00
transport.c	cifs: try opening channels after mounting	2019-11-25 01:16:30 -06:00
winucase.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
xattr.c	CIFS: fix max ea value size	2019-09-23 23:28:59 -05:00