Ksawlii/kernel_samsung_a53x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

kdb: address -Wformat-security warnings

Browse source 
[ 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@arndb.de>
Fixes: 5d5314d6795f ("kdb: core for kgdb back end (1 of 2)")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20240528121154.3662553-1-arnd@kernel.org
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Arnd Bergmann 2024-05-28 14:11:48 +02:00 • committed by Ksawlii
parent 5aa543b3e3
commit fb58b0ce37
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
kernel/debug/kdb/kdb_io.c
View file

@ -358,7 +358,7 @@ poll_again:
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);
@ -450,7 +450,7 @@ 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);
}