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smb311 client: fix missing tcon check when mounting with linux/posix extensions

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When mounting the same share twice, once with the "linux" mount parameter
(or equivalently "posix") and then once without (or e.g. with "nolinux"),
we were incorrectly reusing the same tree connection for both mounts.
This meant that the first mount of the share on the client, would
cause subsequent mounts of that same share on the same client to
ignore that mount parm ("linux" vs. "nolinux") and incorrectly reuse
the same tcon.

Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Steve French 2025-04-06 14:09:19 -05:00
parent 6f8a394aa9
commit b365b9d404
1 changed files with 2 additions and 0 deletions
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2
fs/smb/client/connect.c
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@ -2556,6 +2556,8 @@ static int match_tcon(struct cifs_tcon *tcon, struct smb3_fs_context *ctx)
return 0;
if (tcon->nodelete != ctx->nodelete)
return 0;
if (tcon->posix_extensions != ctx->linux_ext)
return 0;
return 1;
}