Subj : src/conio/x_events.c
To   : Git commit to main/sbbs/master
From : Rob Swindell (on ChromeOS)
Date : Mon Jul 03 2023 08:26 pm

https://gitlab.synchro.net/main/sbbs/-/commit/0a6fdb956890d029bfdb230f
Modified Files:
	src/conio/x_events.c
Log Message:
Fix crash in net_wm_state_is_cb when running GCC ASan-enabled build

Check size of X11 property before dereferencing as an Atom.
This fixes:
==10203==ERROR: AddressSanitizer: heap-buffer-overflow on address
0x602000065970 at pc 0x5c5834fb8812 bp 0x7819c717c220 sp 0x7819c717c218
READ of size 8 at 0x602000065970 thread T2 (X11 Events)
    #0 0x5c5834fb8811 in net_wm_state_is_cb ../conio/x_events.c:1541

But I'm not clear when nitems_return (nir) might represent > 8-bit items or how
to detect that, so perhaps there's a *better* fix?

.