diff mbox series

[v4,11/14] hw/sd/sdcard: Make iolen unsigned

Message ID 20200626162818.25840-12-f4bug@amsat.org
State New
Headers show
Series hw/sd/sdcard: Fix CVE-2020-13253 & cleanups | expand

Commit Message

Philippe Mathieu-Daudé June 26, 2020, 4:28 p.m. UTC 
From: Philippe Mathieu-Daudé <philmd@redhat.com>

I/O request length can not be negative.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
v4: Use uint32_t (pm215)
---
 hw/sd/sd.c         | 2 +-
 hw/sd/trace-events | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index a0500f4551..8dd83c365c 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -1967,7 +1967,7 @@  uint8_t sd_read_data(SDState *sd)
 {
     /* TODO: Append CRCs */
     uint8_t ret;
-    int io_len;
+    uint32_t io_len;
 
     if (!sd->blk || !blk_is_inserted(sd->blk) || !sd->enable)
         return 0x00;
diff --git a/hw/sd/trace-events b/hw/sd/trace-events
index 5f09d32eb2..d0cd7c6ec4 100644
--- a/hw/sd/trace-events
+++ b/hw/sd/trace-events
@@ -52,7 +52,7 @@  sdcard_unlock(void) ""
 sdcard_read_block(uint64_t addr, uint32_t len) "addr 0x%" PRIx64 " size 0x%x"
 sdcard_write_block(uint64_t addr, uint32_t len) "addr 0x%" PRIx64 " size 0x%x"
 sdcard_write_data(const char *proto, const char *cmd_desc, uint8_t cmd, uint8_t value) "%s %20s/ CMD%02d value 0x%02x"
-sdcard_read_data(const char *proto, const char *cmd_desc, uint8_t cmd, int length) "%s %20s/ CMD%02d len %d"
+sdcard_read_data(const char *proto, const char *cmd_desc, uint8_t cmd, uint32_t length) "%s %20s/ CMD%02d len %" PRIu32
 sdcard_set_voltage(uint16_t millivolts) "%u mV"
 
 # milkymist-memcard.c