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authorArnd Bergmann <arnd@arndb.de>2017-10-19 16:47:48 +0200
committerBen Hutchings <ben@decadent.org.uk>2018-02-13 18:32:13 +0000
commit17e395ec7e80bf0211ec8fd9c5fd5fec4094c3d8 (patch)
treeb3604d549a910a8d01e7784ef16d5ffdfdf431b4 /fs
parent3c467333654f621ad61701193c8b2340da52de5b (diff)
isofs: fix timestamps beyond 2027
commit 34be4dbf87fc3e474a842305394534216d428f5d upstream. isofs uses a 'char' variable to load the number of years since 1900 for an inode timestamp. On architectures that use a signed char type by default, this results in an invalid date for anything beyond 2027. This changes the function argument to a 'u8' array, which is defined the same way on all architectures, and unambiguously lets us use years until 2155. This should be backported to all kernels that might still be in use by that date. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/isofs/isofs.h2
-rw-r--r--fs/isofs/rock.h2
-rw-r--r--fs/isofs/util.c2
3 files changed, 3 insertions, 3 deletions
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index f9c9793fa94a..2c696a619826 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -103,7 +103,7 @@ static inline unsigned int isonum_733(char *p)
/* Ignore bigendian datum due to broken mastering programs */
return get_unaligned_le32(p);
}
-extern int iso_date(char *, int);
+extern int iso_date(u8 *, int);
struct inode; /* To make gcc happy */
diff --git a/fs/isofs/rock.h b/fs/isofs/rock.h
index ed09e2b08637..f835976ce033 100644
--- a/fs/isofs/rock.h
+++ b/fs/isofs/rock.h
@@ -65,7 +65,7 @@ struct RR_PL_s {
};
struct stamp {
- char time[7];
+ __u8 time[7]; /* actually 6 unsigned, 1 signed */
} __attribute__ ((packed));
struct RR_TF_s {
diff --git a/fs/isofs/util.c b/fs/isofs/util.c
index 01e1ee7a998b..5cdf5359b0e9 100644
--- a/fs/isofs/util.c
+++ b/fs/isofs/util.c
@@ -14,7 +14,7 @@
* to GMT. Thus we should always be correct.
*/
-int iso_date(char * p, int flag)
+int iso_date(u8 *p, int flag)
{
int year, month, day, hour, minute, second, tz;
int crtime, days, i;