Commit 099340d3 authored Jan 15, 2021 by Valdis Kletnieks Committed by Greg Kroah-Hartman Jan 17, 2021

exfat: Month timestamp metadata accidentally incremented

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent bb039d45

drivers/staging/exfat/exfat_super.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;