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487286d472
A change during the 1.20 development cycle resulted in fbconfigs being walked
and deallocated individually during __glXScreenDestroy. This change
now avoids a use-after-free caused by that change.
==50859==ERROR: AddressSanitizer: heap-use-after-free on address 0x00010d3819c8 at pc 0x0001009d4230 bp 0x00016feca7a0 sp 0x00016feca798
READ of size 8 at 0x00010d3819c8 thread T5
#0 0x1009d422c in __glXScreenDestroy glxscreens.c:448
#1 0x10091cc98 in __glXAquaScreenDestroy indirect.c:510
#2 0x1009d2734 in glxCloseScreen glxscreens.c:169
#3 0x100740a24 in dix_main main.c:325
#4 0x10023ed50 in server_thread quartzStartup.c:65
#5 0x199ae7fd0 in _pthread_start+0x13c (libsystem_pthread.dylib:arm64e+0x6fd0)
#6 0x199ae2d38 in thread_start+0x4 (libsystem_pthread.dylib:arm64e+0x1d38)
0x00010d3819c8 is located 200 bytes inside of 12800-byte region [0x00010d381900,0x00010d384b00)
freed by thread T5 here:
#0 0x101477ba8 in wrap_free+0x98 (libclang_rt.asan_osx_dynamic.dylib:arm64e+0x3fba8)
#1 0x1009d4240 in __glXScreenDestroy glxscreens.c:449
#2 0x10091cc98 in __glXAquaScreenDestroy indirect.c:510
#3 0x1009d2734 in glxCloseScreen glxscreens.c:169
#4 0x100740a24 in dix_main main.c:325
#5 0x10023ed50 in server_thread quartzStartup.c:65
#6 0x199ae7fd0 in _pthread_start+0x13c (libsystem_pthread.dylib:arm64e+0x6fd0)
#7 0x199ae2d38 in thread_start+0x4 (libsystem_pthread.dylib:arm64e+0x1d38)
previously allocated by thread T5 here:
#0 0x101477e38 in wrap_calloc+0x9c (libclang_rt.asan_osx_dynamic.dylib:arm64e+0x3fe38)
#1 0x100925a40 in __glXAquaCreateVisualConfigs visualConfigs.c:116
#2 0x10091cb24 in __glXAquaScreenProbe+0x224 (X11.bin:arm64+0x100730b24)
#3 0x1009cd840 in xorgGlxServerInit glxext.c:528
#4 0x10074539c in _CallCallbacks dixutils.c:743
#5 0x100932a70 in CallCallbacks callback.h:83
#6 0x100932478 in GlxExtensionInit vndext.c:244
#7 0x10020a364 in InitExtensions miinitext.c:267
#8 0x10073fe7c in dix_main main.c:197
#9 0x10023ed50 in server_thread quartzStartup.c:65
#10 0x199ae7fd0 in _pthread_start+0x13c (libsystem_pthread.dylib:arm64e+0x6fd0)
#11 0x199ae2d38 in thread_start+0x4 (libsystem_pthread.dylib:arm64e+0x1d38)
Regressed-in:
|
4 years ago | |
|---|---|---|
| .. | ||
| Makefile.am | 14 years ago | |
| capabilities.c | 4 years ago | |
| capabilities.h | 13 years ago | |
| glcontextmodes.c | 4 years ago | |
| glcontextmodes.h | 7 years ago | |
| indirect.c | 4 years ago | |
| meson.build | 6 years ago | |
| visualConfigs.c | 4 years ago | |
| visualConfigs.h | 13 years ago | |