19 lines
666 B
Diff
19 lines
666 B
Diff
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diff --git a/security/sandbox/linux/SandboxFilter.cpp b/security/sandbox/linux/SandboxFilter.cpp
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--- a/security/sandbox/linux/SandboxFilter.cpp
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+++ b/security/sandbox/linux/SandboxFilter.cpp
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@@ -711,6 +711,13 @@
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return Error(EPERM);
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#endif
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+ // Bug 1651701: an API for restartable atomic sequences and
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+ // per-CPU data; exposing information about CPU numbers and
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+ // when threads are migrated or preempted isn't great but the
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+ // risk should be relatively low.
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+ case __NR_rseq:
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+ return Allow();
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+
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#ifdef MOZ_ASAN
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// ASAN's error reporter wants to know if stderr is a tty.
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case __NR_ioctl: {
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