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It copies characters to a stack buffer retstr, but fails to null-terminate it. When kstrdup() is called on retstr, it can read past the buffer into uninitialized stack memory, potentially leaking stack contents. Fix this by initializing retstr to zero. Reported-by: sashiko-bot@kernel.org Assisted-by: Antigravity:gemini-3.5-flash Signed-off-by: Dmitry Torokhov --- drivers/mfd/ipaq-micro.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mfd/ipaq-micro.c b/drivers/mfd/ipaq-micro.c index 4b757d847282..5146a6eb0e5a 100644 --- a/drivers/mfd/ipaq-micro.c +++ b/drivers/mfd/ipaq-micro.c @@ -221,7 +221,7 @@ static void ipaq_micro_eeprom_read(struct ipaq_micro *micro, static char *ipaq_micro_str(u8 *wchar, u8 len) { - char retstr[256]; + char retstr[256] = { 0 }; u8 i; for (i = 0; i < len / 2; i++) -- 2.54.0.1099.g489fc7bff1-goog -- Dmitry