Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 7e5820bc252f8faea158012d0a92464001848407
https://github.com/WebKit/WebKit/commit/7e5820bc252f8faea158012d0a92464001848407
Author: Nisha Jain <[email protected]>
Date: 2024-07-22 (Mon, 22 Jul 2024)
Changed paths:
M
Source/bmalloc/libpas/src/libpas/pas_probabilistic_guard_malloc_allocator.c
M
Source/bmalloc/libpas/src/libpas/pas_probabilistic_guard_malloc_allocator.h
M Source/bmalloc/libpas/src/libpas/pas_report_crash.c
M Source/bmalloc/libpas/src/test/PGMTests.cpp
Log Message:
-----------
libpas: PGM allow keeping metadata for freed memory objects
https://bugs.webkit.org/show_bug.cgi?id=276003
rdar://129454965
Reviewed by Keith Miller.
Keeping PGM metadata for freed objects in order to differentiate OOB and UAF
scenarios.
* Source/bmalloc/libpas/src/libpas/pas_probabilistic_guard_malloc_allocator.c:
(pas_probabilistic_guard_malloc_deallocate):
(pas_probabilistic_guard_malloc_remove_metadata):
* Source/bmalloc/libpas/src/libpas/pas_probabilistic_guard_malloc_allocator.h:
* Source/bmalloc/libpas/src/libpas/pas_report_crash.c:
(pas_report_crash_extract_pgm_failure):
* Source/bmalloc/libpas/src/test/PGMTests.cpp:
(testPGMMetaData):
Canonical link: https://commits.webkit.org/281209@main
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