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authordchagin <dchagin@FreeBSD.org>2015-12-27 15:37:07 +0000
committerdchagin <dchagin@FreeBSD.org>2015-12-27 15:37:07 +0000
commitdad18197321e39c593d85743e49c2c26486ccf63 (patch)
treee459c298e24469daff55052ffe342241653d4c3b /lib
parent6cbc48de82fcf894c69c41588fd14c5c4f410244 (diff)
downloadFreeBSD-src-dad18197321e39c593d85743e49c2c26486ccf63.zip
FreeBSD-src-dad18197321e39c593d85743e49c2c26486ccf63.tar.gz
Verify that tv_sec value specified in settimeofday() and clock_settime()
(CLOCK_REALTIME case) system calls is non negative. This commit hides a kernel panic in atrtc_settime() as the clock_ts_to_ct() does not properly convert negative tv_sec. ps. in my opinion clock_ts_to_ct() should be rewritten to properly handle negative tv_sec values. Differential Revision: https://reviews.freebsd.org/D4714 Reviewed by: kib MFC after: 1 week
Diffstat (limited to 'lib')
-rw-r--r--lib/libc/sys/clock_gettime.24
-rw-r--r--lib/libc/sys/gettimeofday.26
2 files changed, 8 insertions, 2 deletions
diff --git a/lib/libc/sys/clock_gettime.2 b/lib/libc/sys/clock_gettime.2
index b42432f..e77b1e8 100644
--- a/lib/libc/sys/clock_gettime.2
+++ b/lib/libc/sys/clock_gettime.2
@@ -29,7 +29,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd December 20, 2015
+.Dd December 27, 2015
.Dt CLOCK_GETTIME 2
.Os
.Sh NAME
@@ -134,6 +134,8 @@ The following error codes may be set in
.It Bq Er EINVAL
The
.Fa clock_id
+or
+.Fa timespec
argument
was not a valid value.
.It Bq Er EPERM
diff --git a/lib/libc/sys/gettimeofday.2 b/lib/libc/sys/gettimeofday.2
index 888cbcd..86b6b1a 100644
--- a/lib/libc/sys/gettimeofday.2
+++ b/lib/libc/sys/gettimeofday.2
@@ -28,7 +28,7 @@
.\" @(#)gettimeofday.2 8.2 (Berkeley) 5/26/95
.\" $FreeBSD$
.\"
-.Dd December 20, 2015
+.Dd December 27, 2015
.Dt GETTIMEOFDAY 2
.Os
.Sh NAME
@@ -110,6 +110,10 @@ system call even when the system is secure.
The following error codes may be set in
.Va errno :
.Bl -tag -width Er
+.It Bq Er EINVAL
+The supplied
+.Fa timeval
+value is invalid.
.It Bq Er EPERM
A user other than the super-user attempted to set the time.
.El
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