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From: Gerd Hoffmann <kraxel@redhat.com>
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Date: Tue, 9 May 2017 13:01:28 +0200
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Subject: [PATCH] usb-redir: fix stack overflow in usbredir_log_data
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Don't reinvent a broken wheel, just use the hexdump function we have.
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Impact: low, broken code doesn't run unless you have debug logging
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enabled.
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Reported-by: 李强 <liqiang6-s@360.cn>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Message-id: 20170509110128.27261-1-kraxel@redhat.com
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(cherry picked from commit bd4a683505b27adc1ac809f71e918e58573d851d)
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---
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hw/usb/redirect.c | 13 +------------
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1 file changed, 1 insertion(+), 12 deletions(-)
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diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
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index 0efe62f725..eb70dc7218 100644
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--- a/hw/usb/redirect.c
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+++ b/hw/usb/redirect.c
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@@ -229,21 +229,10 @@ static void usbredir_log(void *priv, int level, const char *msg)
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static void usbredir_log_data(USBRedirDevice *dev, const char *desc,
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const uint8_t *data, int len)
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{
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- int i, j, n;
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-
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if (dev->debug < usbredirparser_debug_data) {
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return;
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}
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-
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- for (i = 0; i < len; i += j) {
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- char buf[128];
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-
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- n = sprintf(buf, "%s", desc);
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- for (j = 0; j < 8 && i + j < len; j++) {
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- n += sprintf(buf + n, " %02X", data[i + j]);
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- }
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- error_report("%s", buf);
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- }
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+ qemu_hexdump((char *)data, stderr, desc, len);
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}
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/*
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