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| author | Ronnie Sahlberg <lsahlber@redhat.com> | 2018-12-13 01:06:16 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 21:46:08 +0300 |
| commit | 254c1913cb652d4227fcff87d3518a22e9001062 (patch) | |
| tree | 38759ac39f830a2596a4aad8b6fd25ec62601522 /arch | |
| parent | b0d08e077d8148a45a108acc602e5b0ac865a84f (diff) | |
| download | linux-254c1913cb652d4227fcff87d3518a22e9001062.tar.xz | |
cifs: check ntwrk_buf_start for NULL before dereferencing it
[ Upstream commit 59a63e479ce36a3f24444c3a36efe82b78e4a8e0 ]
RHBZ: 1021460
There is an issue where when multiple threads open/close the same directory
ntwrk_buf_start might end up being NULL, causing the call to smbCalcSize
later to oops with a NULL deref.
The real bug is why this happens and why this can become NULL for an
open cfile, which should not be allowed.
This patch tries to avoid a oops until the time when we fix the underlying
issue.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions