Remove FakeShmOpen when minimum MacOS version is 10.12
Categories
(Core :: IPC, task, P3)
Tracking
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| Tracking | Status | |
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| firefox80 | --- | fixed |
People
(Reporter: jld, Assigned: jld)
References
Details
Attachments
(1 file)
This code was added to work around a security bug in MacOS, fixed in version 10.12 and newer. When our minimum version is 10.12, we could remove it.
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Assignee | |
Comment 1•4 years ago
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CVE-2018-4435 (https://crbug.com/project-zero/1671) was fixed in macOS
10.12 and up, but when we added uses of shm_open that would be affected
by it we still supported 10.9, so we added a workaround that tests for
the bug (by trying to exploit it) and falls back to the slower
alternative of temporary files if necessary.
The minimum supported version is now 10.12, and we've already
committed changes (e.g., to sandboxing) that would break the browser
on older versions, so we can remove this code. Note that we also have
cross-platform gtests that check for this type of bug, so we'll have some
warning if it's ever reintroduced.
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Updated•4 years ago
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Pushed by jedavis@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/918de9580b2a Remove workaround for shared memory security bug in old macOS versions. r=spohl
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Comment 3•4 years ago
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| bugherder | ||
Description
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