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| author | Alan Stern <stern@rowland.harvard.edu> | 2017-03-24 17:38:28 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-04-08 07:30:34 (GMT) |
| commit | 67e41b1368b146ff6508a4efe5552400412d2f32 (patch) | |
| tree | 969f81d050866fd8687f7b0499ee530781b506a3 /drivers/tty | |
| parent | 1f1c9e29651df61516b028c58632124b345ec85b (diff) | |
| download | linux-67e41b1368b146ff6508a4efe5552400412d2f32.tar.xz | |
USB: fix linked-list corruption in rh_call_control()
commit 1633682053a7ee8058e10c76722b9b28e97fb73f upstream.
Using KASAN, Dmitry found a bug in the rh_call_control() routine: If
buffer allocation fails, the routine returns immediately without
unlinking its URB from the control endpoint, eventually leading to
linked-list corruption.
This patch fixes the problem by jumping to the end of the routine
(where the URB is unlinked) when an allocation failure occurs.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
0 files changed, 0 insertions, 0 deletions