linux/fs/smb/client
Shyam Prasad N 69cba9d3c1 cifs: fix mid leak during reconnection after timeout threshold
When the number of responses with status of STATUS_IO_TIMEOUT
exceeds a specified threshold (NUM_STATUS_IO_TIMEOUT), we reconnect
the connection. But we do not return the mid, or the credits
returned for the mid, or reduce the number of in-flight requests.

This bug could result in the server->in_flight count to go bad,
and also cause a leak in the mids.

This change moves the check to a few lines below where the
response is decrypted, even of the response is read from the
transform header. This way, the code for returning the mids
can be reused.

Also, the cifs_reconnect was reconnecting just the transport
connection before. In case of multi-channel, this may not be
what we want to do after several timeouts. Changed that to
reconnect the session and the tree too.

Also renamed NUM_STATUS_IO_TIMEOUT to a more appropriate name
MAX_STATUS_IO_TIMEOUT.

Fixes: 8e670f77c4 ("Handle STATUS_IO_TIMEOUT gracefully")
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-07-14 11:25:08 -05:00
..
asn1.c
cached_dir.c cifs: Add a laundromat thread for cached directories 2023-07-05 22:36:07 -05:00
cached_dir.h cifs: Add a laundromat thread for cached directories 2023-07-05 22:36:07 -05:00
cifs_debug.c smb: client: fix shared DFS root mounts with different prefixes 2023-06-28 15:48:43 -05:00
cifs_debug.h
cifs_dfs_ref.c smb: client: fix parsing of source mount option 2023-06-28 11:48:56 -05:00
cifs_fs_sb.h
cifs_ioctl.h
cifs_spnego_negtokeninit.asn1
cifs_spnego.c
cifs_spnego.h
cifs_swn.c
cifs_swn.h
cifs_unicode.c
cifs_unicode.h
cifs_uniupr.h
cifsacl.c
cifsacl.h
cifsencrypt.c
cifsfs.c 20 cifs/smb3 fixes, 8 for stable 2023-06-30 22:00:28 -07:00
cifsfs.h
cifsglob.h cifs: is_network_name_deleted should return a bool 2023-07-14 11:24:14 -05:00
cifspdu.h
cifsproto.h smb: client: fix shared DFS root mounts with different prefixes 2023-06-28 15:48:43 -05:00
cifsroot.c
cifssmb.c smb: client: Fix -Wstringop-overflow issues 2023-07-12 23:29:11 -05:00
connect.c cifs: fix mid leak during reconnection after timeout threshold 2023-07-14 11:25:08 -05:00
dfs_cache.c smb: client: fix shared DFS root mounts with different prefixes 2023-06-28 15:48:43 -05:00
dfs_cache.h
dfs.c smb: client: fix missed ses refcounting 2023-07-12 23:29:39 -05:00
dfs.h smb: client: fix shared DFS root mounts with different prefixes 2023-06-28 15:48:43 -05:00
dir.c
dns_resolve.c
dns_resolve.h
export.c
file.c cifs: if deferred close is disabled then close files immediately 2023-07-10 10:37:12 -05:00
fs_context.c smb: client: fix parsing of source mount option 2023-06-28 11:48:56 -05:00
fs_context.h
fscache.c
fscache.h
inode.c
ioctl.c
Kconfig
link.c
Makefile
misc.c smb: client: fix shared DFS root mounts with different prefixes 2023-06-28 15:48:43 -05:00
netlink.c
netlink.h
netmisc.c
nterr.c
nterr.h
ntlmssp.h
readdir.c
rfc1002pdu.h
sess.c
smb1ops.c
smb2file.c
smb2glob.h
smb2inode.c smb: client: fix broken file attrs with nodfs mounts 2023-06-28 11:47:53 -05:00
smb2maperror.c
smb2misc.c
smb2ops.c cifs: is_network_name_deleted should return a bool 2023-07-14 11:24:14 -05:00
smb2pdu.c cifs: fix session state check in reconnect to avoid use-after-free issue 2023-06-28 11:47:43 -05:00
smb2pdu.h
smb2proto.h
smb2status.h
smb2transport.c smb: client: fix missed ses refcounting 2023-07-12 23:29:39 -05:00
smbdirect.c asm-generic updates for 6.5 2023-07-06 10:06:04 -07:00
smbdirect.h
smbencrypt.c
smberr.h
trace.c
trace.h cifs: new dynamic tracepoint to track ses not found errors 2023-06-29 09:58:09 -05:00
transport.c cifs: do all necessary checks for credits within or before locking 2023-06-28 11:46:58 -05:00
unc.c
winucase.c
xattr.c