diff --git a/CVE-2026-58011.patch b/CVE-2026-58011.patch new file mode 100644 index 0000000..43b0a37 --- /dev/null +++ b/CVE-2026-58011.patch @@ -0,0 +1,122 @@ +From 0a26e16a79b589f0fb534612a3febaf089cef981 Mon Sep 17 00:00:00 2001 +From: Philip Withnall +Date: Sun, 29 Mar 2026 23:19:47 +0100 +Subject: [PATCH 1/2] gdatetime: Factor out a couple of magic constants + +This introduces no functional changes, it just makes the code a little +clearer. + +Signed-off-by: Philip Withnall +--- + glib/gdatetime.c | 9 ++++++--- + 1 file changed, 6 insertions(+), 3 deletions(-) + +diff --git a/glib/gdatetime.c b/glib/gdatetime.c +index ba8503813..6f9cff5c0 100644 +--- a/glib/gdatetime.c ++++ b/glib/gdatetime.c +@@ -123,7 +123,7 @@ struct _GDateTime + gint interval; + + /* 1 is 0001-01-01 in Proleptic Gregorian */ +- gint32 days; ++ gint32 days; /* in range [MIN_DAYS, MAX_DAYS] */ + + volatile gint ref_count; + }; +@@ -159,6 +159,9 @@ struct _GDateTime + #define JULIAN_YEAR(d) ((d)->julian / 365.25) + #define DAYS_PER_PERIOD (G_GINT64_CONSTANT (2914695)) + ++#define MIN_DAYS 1 /* the days count for 0001-01-01 in Proleptic Gregorian */ ++#define MAX_DAYS 3652059 /* the days count for 9999-12-31 in Proleptic Gregorian */ ++ + static const guint16 days_in_months[2][13] = + { + { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, +@@ -768,7 +771,7 @@ g_date_time_from_instant (GTimeZone *tz, + datetime->days = instant / USEC_PER_DAY; + datetime->usec = instant % USEC_PER_DAY; + +- if (datetime->days < 1 || 3652059 < datetime->days) ++ if (datetime->days < MIN_DAYS || datetime->days > MAX_DAYS) + { + g_date_time_unref (datetime); + datetime = NULL; +@@ -804,7 +807,7 @@ g_date_time_deal_with_date_change (GDateTime *datetime) + gint64 full_time; + gint64 usec; + +- if (datetime->days < 1 || datetime->days > 3652059) ++ if (datetime->days < MIN_DAYS || datetime->days > MAX_DAYS) + return FALSE; + + was_dst = g_time_zone_is_dst (datetime->tz, datetime->interval); + +From 727ab7692db7e15889c4ffd455cfac498c7c3ada Mon Sep 17 00:00:00 2001 +From: Philip Withnall +Date: Sun, 29 Mar 2026 23:46:17 +0100 +Subject: [PATCH 2/2] gdatetime: Add missing range validation to + g_date_time_add_full() +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Otherwise it’s possible to create a non-`NULL` but invalid `GDateTime`, +which breaks all kinds of internal assumptions. + +Spotted by linhlhq as #YWH-PGM9867-191. Thanks to them for providing a +suggested fix and a test case, which I have adapted and validated. + +Signed-off-by: Philip Withnall + +Fixes: #3917 +--- + glib/gdatetime.c | 4 +++- + glib/tests/gdatetime.c | 18 ++++++++++++++++++ + 2 files changed, 21 insertions(+), 1 deletion(-) + +diff --git a/glib/gdatetime.c b/glib/gdatetime.c +index 6f9cff5c0..057746b17 100644 +--- a/glib/gdatetime.c ++++ b/glib/gdatetime.c +@@ -1960,7 +1960,9 @@ g_date_time_add_full (GDateTime *datetime, + new->days = full_time / USEC_PER_DAY; + new->usec = full_time % USEC_PER_DAY; + +- /* XXX validate */ ++ /* Validate it’s still in the range 0001-01-01 to 9999-12-31 */ ++ if (new->days < MIN_DAYS || new->days > MAX_DAYS) ++ g_clear_pointer (&new, g_date_time_unref); + + return new; + } +diff --git a/glib/tests/gdatetime.c b/glib/tests/gdatetime.c +index d0755e722..b0bda25a3 100644 +--- a/glib/tests/gdatetime.c ++++ b/glib/tests/gdatetime.c +@@ -925,6 +925,24 @@ test_GDateTime_add_full (void) + TEST_ADD_FULL (2010, 8, 25, 22, 45, 0, + 0, 1, 6, 1, 25, 0, + 2010, 10, 2, 0, 10, 0); ++ ++#define TEST_ADD_FULL_ERROR(y,m,d,h,mi,s,ay,am,ad,ah,ami,as) G_STMT_START { \ ++ GDateTime *dt; \ ++ dt = g_date_time_new_utc (y, m, d, h, mi, s); \ ++ g_assert_null (g_date_time_add_full (dt, ay, am, ad, ah, ami, as)); \ ++ g_date_time_unref (dt); \ ++} G_STMT_END ++ ++ TEST_ADD_FULL_ERROR ( 1, 12, 1, 0, 0, 0, ++ -1, 0, 0, 0, 0, 0); ++ TEST_ADD_FULL_ERROR ( 1, 12, 1, 0, 0, 0, ++ 10000, 0, 0, 0, 0, 0); ++ TEST_ADD_FULL_ERROR ( 9999, 12, 1, 0, 0, 0, ++ -10000, 0, 0, 0, 0, 0); ++ TEST_ADD_FULL_ERROR ( 1, 12, 1, 0, 0, 0, ++ 0, 0, 3660001, 0, 0, 0); ++ TEST_ADD_FULL_ERROR ( 9999, 12, 1, 0, 0, 0, ++ 0, 0, -3660001, 0, 0, 0); + } + + static void diff --git a/glib2.spec b/glib2.spec index 8543c7c..39c9dbb 100644 --- a/glib2.spec +++ b/glib2.spec @@ -5,7 +5,7 @@ Name: glib2 Version: 2.56.4 -Release: 174%{?dist} +Release: 175%{?dist} Summary: A library of handy utility functions License: LGPLv2+ @@ -184,6 +184,9 @@ Patch39: CVE-2026-58013.patch # https://gitlab.gnome.org/GNOME/glib/-/commit/49e067570dfa208c45d76f0b602664fd11a629ef Patch40: CVE-2026-58012.patch +# https://gitlab.gnome.org/GNOME/glib/-/merge_requests/5131 +Patch41: CVE-2026-58011.patch + %description GLib is the low-level core library that forms the basis for projects such as GTK+ and GNOME. It provides data structure handling for C, @@ -384,6 +387,10 @@ make %{?_smp_mflags} check %{_datadir}/installed-tests %changelog +* Mon Jul 20 2026 RHEL Packaging Agent - 2.56.4-175 +- Fix CVE-2026-58011: range validation in g_date_time_add_full() +- Resolves: RHEL-212187 + * Mon Jul 20 2026 RHEL Packaging Agent - 2.56.4-174 - Fix CVE-2026-58012: buffer overflow in gregex case changing substitutions - Resolves: RHEL-212204