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# 7ba4595c 07-Jan-2020 Evgenii Stepanov <[email protected]>

[msan] Fix underflow in qsort interceptor.
# b5e7f95c 20-Dec-2019 Evgenii Stepanov <[email protected]>

[msan] Check qsort input.

Summary:
Qsort interceptor suppresses all checks by unpoisoning the data in the
wrapper of a comparator function, and then unpoisoning the output array
as well.

This chang

[msan] Check qsort input.

Summary:
Qsort interceptor suppresses all checks by unpoisoning the data in the
wrapper of a comparator function, and then unpoisoning the output array
as well.

This change adds an explicit run of the comparator on all elements of
the input array to catch any sanitizer bugs.

Reviewers: vitalybuka

Subscribers: #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D71780

show more ...


# ef7a659c 27-Dec-2019 Reid Kleckner <[email protected]>

Reland "[msan] Intercept qsort, qsort_r."

This reverts commit 8fcce5ac73d49981656d9126e6c88391c1f6bf01.

I spoke too soon, the revert does not actually cause the startup crash
to go away.
# 04926e67 26-Dec-2019 Evgenii Stepanov <[email protected]>

Revert "[msan] Check qsort input."

This change breaks LLVM bootstrap with ASan and MSan.

FAILED: lib/ToolDrivers/llvm-lib/Options.inc
OptParser.td:137:1: error: Option is equivalent to
def INPUT :

Revert "[msan] Check qsort input."

This change breaks LLVM bootstrap with ASan and MSan.

FAILED: lib/ToolDrivers/llvm-lib/Options.inc
OptParser.td:137:1: error: Option is equivalent to
def INPUT : Option<[], "<input>", KIND_INPUT>;
^
OptParser.td:137:1: error: Other defined here
def INPUT : Option<[], "<input>", KIND_INPUT>;

This reverts commit caa48a6b88aeed8ae80e6ddb1eae8c6a7cbe260b.

show more ...


# caa48a6b 20-Dec-2019 Evgenii Stepanov <[email protected]>

[msan] Check qsort input.

Summary:
Qsort interceptor suppresses all checks by unpoisoning the data in the
wrapper of a comparator function, and then unpoisoning the output array
as well.

This chang

[msan] Check qsort input.

Summary:
Qsort interceptor suppresses all checks by unpoisoning the data in the
wrapper of a comparator function, and then unpoisoning the output array
as well.

This change adds an explicit run of the comparator on all elements of
the input array to catch any sanitizer bugs.

Reviewers: vitalybuka

Subscribers: #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D71780

show more ...


# 7a9ebe95 19-Dec-2019 Evgenii Stepanov <[email protected]>

[msan] Intercept qsort, qsort_r.

Summary:
This fixes qsort-related false positives with glibc-2.27.
I'm not entirely sure why they did not show up with the earlier
versions; the code seems similar e

[msan] Intercept qsort, qsort_r.

Summary:
This fixes qsort-related false positives with glibc-2.27.
I'm not entirely sure why they did not show up with the earlier
versions; the code seems similar enough.

Reviewers: vitalybuka

Subscribers: #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D71740

show more ...


# ddf897fc 20-Dec-2019 Evgenii Stepanov <[email protected]>

[msan] Check qsort input.

Summary:
Qsort interceptor suppresses all checks by unpoisoning the data in the
wrapper of a comparator function, and then unpoisoning the output array
as well.

This chang

[msan] Check qsort input.

Summary:
Qsort interceptor suppresses all checks by unpoisoning the data in the
wrapper of a comparator function, and then unpoisoning the output array
as well.

This change adds an explicit run of the comparator on all elements of
the input array to catch any sanitizer bugs.

Reviewers: vitalybuka

Subscribers: #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D71780

show more ...


# 07861e95 19-Dec-2019 Evgenii Stepanov <[email protected]>

[msan] Intercept qsort, qsort_r.

Summary:
This fixes qsort-related false positives with glibc-2.27.
I'm not entirely sure why they did not show up with the earlier
versions; the code seems similar e

[msan] Intercept qsort, qsort_r.

Summary:
This fixes qsort-related false positives with glibc-2.27.
I'm not entirely sure why they did not show up with the earlier
versions; the code seems similar enough.

Reviewers: vitalybuka

Subscribers: #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D71740

show more ...