Message ID | 20221013065224.1864145-16-kraxel@redhat.com |
---|---|
State | New |
Headers | show
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Tsirkin" <mst@redhat.com>, Eric Blake <eblake@redhat.com>, lu zhipeng <luzhipeng@cestc.cn> Subject: [PULL 15/26] cirrus_vga: fix potential memory overflow Date: Thu, 13 Oct 2022 08:52:13 +0200 Message-Id: <20221013065224.1864145-16-kraxel@redhat.com> In-Reply-To: <20221013065224.1864145-1-kraxel@redhat.com> References: <20221013065224.1864145-1-kraxel@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.7 Received-SPF: pass client-ip=170.10.129.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> |
Series |
[PULL,01/26] audio: refactor code in audio_run_out()
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diff --git a/hw/display/cirrus_vga.c b/hw/display/cirrus_vga.c index 3bb6a58698c1..2577005d03ce 100644 --- a/hw/display/cirrus_vga.c +++ b/hw/display/cirrus_vga.c @@ -834,7 +834,7 @@ static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s) word alignment, so we keep them for the next line */ /* XXX: keep alignment to speed up transfer */ end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch; - copy_count = s->cirrus_srcptr_end - end_ptr; + copy_count = MIN(s->cirrus_srcptr_end - end_ptr, CIRRUS_BLTBUFSIZE); memmove(s->cirrus_bltbuf, end_ptr, copy_count); s->cirrus_srcptr = s->cirrus_bltbuf + copy_count; s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;