The staging/exfat driver has departed, but a lot of distros are still tracking 5.4-stable, so we should fix this.

There was an 0/1 offset error in month handling for file metadata, causing the month to get incremented on each reference to the file.

Thanks to Sebastian Gurtler for troubleshooting this, and Arpad Mueller for bringing it to my attention.

Relevant discussions: https://bugzilla.kernel.org/show_bug.cgi?id=210997 https://bugs.launchpad.net/ubuntu/+source/ubuntu-meta/+bug/1872504

Signed-off-by: Valdis Kletnieks valdis.kletnieks@vt.edu

diff --git a/drivers/staging/exfat/exfat_super.c b/drivers/staging/exfat/exfat_super.c index 3b2b0ceb7297..848258daf620 100644 --- a/drivers/staging/exfat/exfat_super.c +++ b/drivers/staging/exfat/exfat_super.c @@ -59,7 +59,7 @@ static void exfat_write_super(struct super_block *sb); /* Convert a FAT time/date pair to a UNIX date (seconds since 1 1 70). */ static void exfat_time_fat2unix(struct timespec64 *ts, struct date_time_t *tp) { - ts->tv_sec = mktime64(tp->Year + 1980, tp->Month + 1, tp->Day, + ts->tv_sec = mktime64(tp->Year + 1980, tp->Month, tp->Day, tp->Hour, tp->Minute, tp->Second);

ts->tv_nsec = tp->MilliSecond * NSEC_PER_MSEC;