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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-09 09:59:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-09 09:59:35 -0700 |
| commit | 384989b58d45e5478d555cdb4ac79336a88a45cc (patch) | |
| tree | ef5cd02bb97d72d02538975620cdd668169558f0 /fs/cifs/smb2pdu.c | |
| parent | d77e92e270edd79a2218ce0ba5b6179ad0c93175 (diff) | |
| parent | 5fb4e288a025af1abc5c67ecebf30fbf6b3edad1 (diff) | |
| download | linux-384989b58d45e5478d555cdb4ac79336a88a45cc.tar.bz2 | |
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs updates from Steve French:
"Small cifs fix and a patch for improved debugging"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Fix use-after-free on mid_q_entry
Update cifs version number
Add way to query server fs info for smb3
Diffstat (limited to 'fs/cifs/smb2pdu.c')
| -rw-r--r-- | fs/cifs/smb2pdu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index b8b4f08ee094..070fb2ad85ce 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -1626,7 +1626,9 @@ smb2_echo_callback(struct mid_q_entry *mid) if (mid->mid_state == MID_RESPONSE_RECEIVED) credits_received = le16_to_cpu(smb2->hdr.CreditRequest); + mutex_lock(&server->srv_mutex); DeleteMidQEntry(mid); + mutex_unlock(&server->srv_mutex); add_credits(server, credits_received, CIFS_ECHO_OP); } @@ -1810,7 +1812,9 @@ smb2_readv_callback(struct mid_q_entry *mid) cifs_stats_fail_inc(tcon, SMB2_READ_HE); queue_work(cifsiod_wq, &rdata->work); + mutex_lock(&server->srv_mutex); DeleteMidQEntry(mid); + mutex_unlock(&server->srv_mutex); add_credits(server, credits_received, 0); } @@ -1938,6 +1942,7 @@ smb2_writev_callback(struct mid_q_entry *mid) { struct cifs_writedata *wdata = mid->callback_data; struct cifs_tcon *tcon = tlink_tcon(wdata->cfile->tlink); + struct TCP_Server_Info *server = tcon->ses->server; unsigned int written; struct smb2_write_rsp *rsp = (struct smb2_write_rsp *)mid->resp_buf; unsigned int credits_received = 1; @@ -1977,7 +1982,9 @@ smb2_writev_callback(struct mid_q_entry *mid) cifs_stats_fail_inc(tcon, SMB2_WRITE_HE); queue_work(cifsiod_wq, &wdata->work); + mutex_lock(&server->srv_mutex); DeleteMidQEntry(mid); + mutex_unlock(&server->srv_mutex); add_credits(tcon->ses->server, credits_received, 0); } |