4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Arnd Bergmann <arnd@xxxxxxxx>
[ Upstream commit 70867efacf4370b6c7cdfc7a5b11300e9ef7de64 ]
When -Wformat-security is not disabled, using a string pointer
as a format causes a warning:
kernel/debug/kdb/kdb_io.c: In function 'kdb_read':
kernel/debug/kdb/kdb_io.c:365:36: error: format not a string literal and no format arguments [-Werror=format-security]
365 | kdb_printf(kdb_prompt_str);
| ^~~~~~~~~~~~~~
kernel/debug/kdb/kdb_io.c: In function 'kdb_getstr':
kernel/debug/kdb/kdb_io.c:456:20: error: format not a string literal and no format arguments [-Werror=format-security]
456 | kdb_printf(kdb_prompt_str);
| ^~~~~~~~~~~~~~
Use an explcit "%s" format instead.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Fixes: 5d5314d6795f ("kdb: core for kgdb back end (1 of 2)")
Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240528121154.3662553-1-arnd@xxxxxxxxxx
Signed-off-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
kernel/debug/kdb/kdb_io.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/debug/kdb/kdb_io.c b/kernel/debug/kdb/kdb_io.c
index 5358e8a8b6f11..9ce4e52532b77 100644
--- a/kernel/debug/kdb/kdb_io.c
+++ b/kernel/debug/kdb/kdb_io.c
@@ -368,7 +368,7 @@ static char *kdb_read(char *buffer, size_t bufsize)
if (i >= dtab_count)
kdb_printf("...");
kdb_printf("\n");
- kdb_printf(kdb_prompt_str);
+ kdb_printf("%s", kdb_prompt_str);
kdb_printf("%s", buffer);
if (cp != lastchar)
kdb_position_cursor(kdb_prompt_str, buffer, cp);
@@ -460,7 +460,7 @@ char *kdb_getstr(char *buffer, size_t bufsize, const char *prompt)
{
if (prompt && kdb_prompt_str != prompt)
strscpy(kdb_prompt_str, prompt, CMD_BUFLEN);
- kdb_printf(kdb_prompt_str);
+ kdb_printf("%s", kdb_prompt_str);
kdb_nextline = 1; /* Prompt and input resets line number */
return kdb_read(buffer, bufsize);
}
--
2.43.0
