diff options
| -rw-r--r-- | fs/cifs/cifssmb.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index e1f90a3a0162..f213b8ae43c1 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1518,6 +1518,14 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, *nbytes = le16_to_cpu(pSMBr->CountHigh); *nbytes = (*nbytes) << 16; *nbytes += le16_to_cpu(pSMBr->Count); + + /* + * Mask off high 16 bits when bytes written as returned by the + * server is greater than bytes requested by the client. Some + * OS/2 servers are known to set incorrect CountHigh values. + */ + if (*nbytes > count) + *nbytes &= 0xFFFF; } cifs_buf_release(pSMB); @@ -1606,6 +1614,14 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, *nbytes = le16_to_cpu(pSMBr->CountHigh); *nbytes = (*nbytes) << 16; *nbytes += le16_to_cpu(pSMBr->Count); + + /* + * Mask off high 16 bits when bytes written as returned by the + * server is greater than bytes requested by the client. OS/2 + * servers are known to set incorrect CountHigh values. + */ + if (*nbytes > count) + *nbytes &= 0xFFFF; } /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |