The simple_str* family of functions perform no error checking in scenarios where the input value overflows the intended output variable. This results in these function successfully returning even when the output does not match the input string.
Or as it was mentioned [1], "...simple_strtol(), simple_strtoll(), simple_strtoul(), and simple_strtoull() functions explicitly ignore overflows, which may lead to unexpected results in callers." Hence, the use of those functions is discouraged. This patch series replaces uses of the simple_strto* series of function with the safer kstrto* alternatives. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#simple-strtol-simple-strtoll-simple-strtoul-simple-strtoull Yuran Pereira (2): kdb: Replace the use of simple_strto with safer kstrto in kdb_main trace: kdb: Replace simple_strtoul with kstrtoul in kdb_ftdump kernel/debug/kdb/kdb_main.c | 70 +++++++++++-------------------------- kernel/trace/trace_kdb.c | 14 ++++---- 2 files changed, 27 insertions(+), 57 deletions(-) -- 2.25.1
