When snprintf truncates the string, size might underflow causing a WARN_ON_ONCE in the snprintf in the next iteration.
Signed-off-by: Eric Sesterhenn <[email protected]> --- drivers/edac/thunderx_edac.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/edac/thunderx_edac.c b/drivers/edac/thunderx_edac.c index f35d87519a3e..aedf3412f38c 100644 --- a/drivers/edac/thunderx_edac.c +++ b/drivers/edac/thunderx_edac.c @@ -59,6 +59,8 @@ static void decode_register(char *str, size_t size, descr->type == ERR_CORRECTED ? "Corrected" : "Uncorrected", descr->descr); + if (ret > size) + return; str += ret; size -= ret; } -- Eric Sesterhenn (Principal Security Consultant) X41 D-SEC GmbH, Dennewartstr. 25-27, D-52068 Aachen T: +49 241 9809418-0, Fax: -9 Unternehmenssitz: Aachen, Amtsgericht Aachen: HRB19989 Geschäftsführer: Markus Vervier
signature.asc
Description: OpenPGP digital signature
