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CIFS: ignore mode change if it's just for clearing setuid/setgid bits

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If the ATTR_KILL_S*ID bits are set then any mode change is only for clearing
the setuid/setgid bits.  For CIFS, skip the mode change and let the server
handle it.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Cc: Steven French <sfrench@us.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Layton 2007-10-18 03:05:22 -07:00 committed by Linus Torvalds
parent 188b95dd8e
commit d32c4f2626
1 changed files with 5 additions and 0 deletions
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5
fs/cifs/inode.c
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@ -1538,6 +1538,11 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
}
time_buf.Attributes = 0;
/* skip mode change if it's just for clearing setuid/setgid */
if (attrs->ia_valid & (ATTR_KILL_SUID|ATTR_KILL_SGID))
attrs->ia_valid &= ~ATTR_MODE;
if (attrs->ia_valid & ATTR_MODE) {
cFYI(1, ("Mode changed to 0x%x", attrs->ia_mode));
mode = attrs->ia_mode;