Re: [Y2038] [PATCH] [net-next, v2] tcp: use monotonic timestamps for PAWS

On 06/19/2018 05:36 AM, Arnd Bergmann wrote:

Using get_seconds() for timestamps is deprecated since it can lead to overflows on 32-bit systems. While the interface generally doesn't overflow until year 2106, the specific implementation of the TCP PAWS algorithm breaks in 2038 when the intermediate signed 32-bit timestamps overflow.

Signed-off-by: Arnd Bergmann arnd@arndb.de

v2: use time_before32()/time_after32() everywhere as suggested Eric Dumazet

Thanks a lot Arnd.

Signed-off-by: Eric Dumazet edumazet@google.com