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| author | Nicholas Mc Guire <hofrat@osadl.org> | 2018-08-23 13:24:02 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-05 10:26:33 +0300 |
| commit | d5f2790a7a1ec89f237ff6e8a261927a51d09128 (patch) | |
| tree | 9cb4aee22da3728a50272faa414c44a0c644b80c /fs/cifs/sess.c | |
| parent | cba34b94077304d5a632286aad14ccbab68a5f98 (diff) | |
| download | linux-d5f2790a7a1ec89f237ff6e8a261927a51d09128.tar.xz | |
cifs: check kmalloc before use
commit 126c97f4d0d1b5b956e8b0740c81a2b2a2ae548c upstream.
The kmalloc was not being checked - if it fails issue a warning
and return -ENOMEM to the caller.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: b8da344b74c8 ("cifs: dynamic allocation of ntlmssp blob")
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
cc: Stable <stable@vger.kernel.org>`
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/cifs/sess.c')
| -rw-r--r-- | fs/cifs/sess.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 8b0502cd39af..aa23c00367ec 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -398,6 +398,12 @@ int build_ntlmssp_auth_blob(unsigned char **pbuffer, goto setup_ntlmv2_ret; } *pbuffer = kmalloc(size_of_ntlmssp_blob(ses), GFP_KERNEL); + if (!*pbuffer) { + rc = -ENOMEM; + cifs_dbg(VFS, "Error %d during NTLMSSP allocation\n", rc); + *buflen = 0; + goto setup_ntlmv2_ret; + } sec_blob = (AUTHENTICATE_MESSAGE *)*pbuffer; memcpy(sec_blob->Signature, NTLMSSP_SIGNATURE, 8); |