From: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: "Gerd Möllmann" <gerd.moellmann@gmail.com>
Cc: Eli Zaretskii <eliz@gnu.org>,
58042@debbugs.gnu.org, Alan Third <alan@idiocy.org>
Subject: bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal
Date: Wed, 05 Oct 2022 20:48:25 +0800 [thread overview]
Message-ID: <87czb6v3l2.fsf@yahoo.com> (raw)
In-Reply-To: <m27d1ev4c8.fsf@Mini.fritz.box> ("Gerd Möllmann"'s message of "Wed, 05 Oct 2022 14:32:07 +0200")
Gerd Möllmann <gerd.moellmann@gmail.com> writes:
> I don't get an abort, but the ASAN error again
Interesting.
> ==67682==ERROR: AddressSanitizer: heap-use-after-free on address 0x000107130d00 at pc 0x0001002a481c bp 0x00016fdcc3c0 sp 0x00016fdcc3b8
> READ of size 8 at 0x000107130d00 thread T0
> #0 0x1002a4818 in PSEUDOVECTORP lisp.h:1110
> #1 0x1002a4888 in SYMBOL_WITH_POS_P lisp.h:1122
> #2 0x10025a338 in EQ lisp.h:1342
> #3 0x100280eb0 in run_window_change_functions window.c:3964
> #4 0x1000f18c4 in redisplay_internal xdisp.c:16600
> #5 0x100107bf8 in redisplay xdisp.c:16111
> #6 0x10089364c in -[EmacsView layoutSublayersOfLayer:] nsterm.m:8661
> #7 0x1900a9624 in CA::Layer::layout_if_needed(CA::Transaction*)+0x224 (QuartzCore:arm64e+0x20624)
> #8 0x1901f661c in CA::Context::commit_transaction(CA::Transaction*,
> double, double*)+0x1c0 (QuartzCore:arm6
>
> frame #8: 0x0000000100280eb4 emacs`run_window_change_functions at window.c:3964:7
> 3961 (de-)selected as its frame's or the globally selected
> 3962 window. */
> 3963 if (((frame_selected_change
> -> 3964 && (EQ (window, old_selected_window)
> 3965 || EQ (window, selected_window)))
> 3966 || (frame_selected_window_change
> 3967 && (EQ (window, FRAME_OLD_SELECTED_WINDOW (f))
>
> (lldb) p window
> (Lisp_Object) $18 = 0x00000001071c2935 (struct window *) $23 = 0x00000001071c2930
> (lldb) p old_selected_window
> (Lisp_Object) $24 = 0x0000000107130d05 (struct Lisp_Vector *) $28 = 0x0000000107130d00
>
> old_selected_window looks strange. It's a global that is not
> staticpro'd
Isn't old_selected_window supposed to be kept in sync with
FRAME_OLD_SELECTED_WINDOW in old_selected_frame, with the latter being
removed once it is deleted?
Would someone who knows the window code well please take a look at this?
next prev parent reply other threads:[~2022-10-05 12:48 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-24 13:45 bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal Gerd Möllmann
2022-09-24 14:17 ` Gerd Möllmann
2022-09-24 14:48 ` Gerd Möllmann
2022-09-24 14:56 ` Eli Zaretskii
2022-09-24 15:08 ` Gerd Möllmann
2022-09-24 15:24 ` Eli Zaretskii
2022-09-25 5:50 ` Gerd Möllmann
2022-09-25 6:32 ` Eli Zaretskii
2022-09-25 7:06 ` Gerd Möllmann
2022-09-25 8:08 ` Eli Zaretskii
2022-09-25 8:28 ` Gerd Möllmann
2022-09-25 8:43 ` Eli Zaretskii
2022-09-26 5:13 ` Gerd Möllmann
2022-10-04 14:33 ` Gerd Möllmann
2022-10-04 16:35 ` Eli Zaretskii
2022-10-05 4:37 ` Gerd Möllmann
2022-10-05 6:16 ` Eli Zaretskii
2022-10-05 6:58 ` Gerd Möllmann
2022-10-05 7:22 ` Eli Zaretskii
2022-10-05 7:34 ` Gerd Möllmann
2022-10-05 9:00 ` Gerd Möllmann
2022-10-05 9:23 ` Eli Zaretskii
2022-10-05 10:14 ` Gerd Möllmann
2022-10-05 10:24 ` Gerd Möllmann
2022-10-05 10:43 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 10:49 ` Gerd Möllmann
2022-10-05 11:10 ` Gerd Möllmann
2022-10-05 11:15 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 11:37 ` Gerd Möllmann
2022-10-05 13:37 ` Eli Zaretskii
2022-10-05 13:52 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 14:09 ` Eli Zaretskii
2022-10-05 14:24 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 13:27 ` Eli Zaretskii
2022-10-05 13:31 ` Gerd Möllmann
2022-10-05 13:55 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-05-08 14:01 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-05-09 1:04 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-05-09 2:25 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-05-09 5:30 ` Eli Zaretskii
2022-10-05 10:45 ` Gerd Möllmann
2022-10-05 11:10 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 11:15 ` Gerd Möllmann
2022-10-05 11:23 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 11:35 ` Gerd Möllmann
2022-10-05 12:02 ` Gerd Möllmann
2022-10-05 12:08 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 13:40 ` Eli Zaretskii
2022-10-05 13:53 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 14:10 ` Eli Zaretskii
2022-10-05 12:05 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 12:32 ` Gerd Möllmann
2022-10-05 12:38 ` Gerd Möllmann
2022-10-05 12:49 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 12:48 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2022-10-06 5:20 ` Gerd Möllmann
2022-10-05 13:39 ` Eli Zaretskii
2022-10-05 13:13 ` Eli Zaretskii
2022-10-05 13:24 ` Gerd Möllmann
2022-10-05 12:59 ` Eli Zaretskii
2022-10-06 5:35 ` Gerd Möllmann
2022-10-06 6:59 ` Eli Zaretskii
2022-10-06 7:21 ` Gerd Möllmann
2022-10-06 8:08 ` Eli Zaretskii
2022-10-06 8:23 ` Gerd Möllmann
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