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Revision tags: llvmorg-18.1.8, llvmorg-18.1.7, llvmorg-18.1.6, llvmorg-18.1.5, llvmorg-18.1.4, llvmorg-18.1.3, llvmorg-18.1.2, llvmorg-18.1.1, llvmorg-18.1.0, llvmorg-18.1.0-rc4, llvmorg-18.1.0-rc3, llvmorg-18.1.0-rc2, llvmorg-18.1.0-rc1, llvmorg-19-init, llvmorg-17.0.6, llvmorg-17.0.5, llvmorg-17.0.4, llvmorg-17.0.3, llvmorg-17.0.2, llvmorg-17.0.1, llvmorg-17.0.0, llvmorg-17.0.0-rc4, llvmorg-17.0.0-rc3, llvmorg-17.0.0-rc2, llvmorg-17.0.0-rc1, llvmorg-18-init, llvmorg-16.0.6, llvmorg-16.0.5, llvmorg-16.0.4 |
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bd1170d2 |
| 12-May-2023 |
Thurston Dang <thurston@google.com> |
ASan: fix potential use-after-free in backtrace interceptor
Various ASan interceptors may corrupt memory if passed a
pointer to freed memory (https://github.com/google/sanitizers/issues/321).
This p
ASan: fix potential use-after-free in backtrace interceptor
Various ASan interceptors may corrupt memory if passed a
pointer to freed memory (https://github.com/google/sanitizers/issues/321).
This patch fixes the issue for the backtrace interceptor,
by calling REAL(backtrace) with a known-good scratch buffer,
and performing an addressability check on the user-provided
buffer prior to writing to it.
Differential Revision: https://reviews.llvm.org/D150496
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| #
d9377c1d |
| 13-May-2023 |
Thurston Dang <thurston@google.com> |
ASan: unbreak Windows build by limiting backtrace* tests to glibc
My newly added backtrace test (https://reviews.llvm.org/D150491)
broke the Windows buildbot (https://lab.llvm.org/buildbot/#/builder
ASan: unbreak Windows build by limiting backtrace* tests to glibc
My newly added backtrace test (https://reviews.llvm.org/D150491)
broke the Windows buildbot (https://lab.llvm.org/buildbot/#/builders/127/builds/48103)
because they do not have execinfo.h.
I expect the same will happen with the backtrace_symbols test (https://reviews.llvm.org/D150498) as well.
This patch does a quick fix by restricting the test scope to glibc-2.27.
(A tricker fix would take into account SANITIZER_INTERCEPT_BACKTRACE,
which is defined as (SI_FREEBSD || SI_NETBSD || SI_GLIBC || SI_SOLARIS))
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| #
d3b5ac8b |
| 12-May-2023 |
Thurston Dang <thurston@google.com> |
ASan: add testcase for backtrace interceptor
It is a known, longstanding issue that some ASan interceptors
may write to freed memory, causing corruption
(https://github.com/google/sanitizers/issues/
ASan: add testcase for backtrace interceptor
It is a known, longstanding issue that some ASan interceptors
may write to freed memory, causing corruption
(https://github.com/google/sanitizers/issues/321). This patch
adds a testcase for the backtrace interceptor (one of the
known cases).
Reviewed By: vitalybuka
Differential Revision: https://reviews.llvm.org/D150491
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