* [PATCH] drivers: dma-buf: Change %p to %pK in debug messages
@ 2018-05-03 0:03 Daniel Rosenberg
0 siblings, 0 replies; only message in thread
From: Daniel Rosenberg @ 2018-05-03 0:03 UTC (permalink / raw)
To: Sumit Semwal, linux-kernel
Cc: Gustavo Padovan, linux-media, linaro-mm-sig, dri-devel,
kernel-team, Daniel Rosenberg, Divya Ponnusamy, stable
The format specifier %p can leak kernel addresses
while not valuing the kptr_restrict system settings.
Use %pK instead of %p, which also evaluates whether
kptr_restrict is set.
Signed-off-by: Divya Ponnusamy <pdivya@codeaurora.org>
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Cc: stable <stable@vger.kernel.org>
---
drivers/dma-buf/sync_debug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma-buf/sync_debug.c b/drivers/dma-buf/sync_debug.c
index c4c8ecb24aa9..d8d340542a79 100644
--- a/drivers/dma-buf/sync_debug.c
+++ b/drivers/dma-buf/sync_debug.c
@@ -133,7 +133,7 @@ static void sync_print_sync_file(struct seq_file *s,
char buf[128];
int i;
- seq_printf(s, "[%p] %s: %s\n", sync_file,
+ seq_printf(s, "[%pK] %s: %s\n", sync_file,
sync_file_get_name(sync_file, buf, sizeof(buf)),
sync_status_str(dma_fence_get_status(sync_file->fence)));
--
2.17.0.441.gb46fe60e1d-goog
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2018-05-03 0:03 [PATCH] drivers: dma-buf: Change %p to %pK in debug messages Daniel Rosenberg
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