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| author | Michael Pratt <mpratt@google.com> | 2019-04-17 13:42:16 -0700 |
|---|---|---|
| committer | Shentubot <shentubot@google.com> | 2019-04-17 13:43:20 -0700 |
| commit | b52cbd60280342f25411561702e97fe650fdaa9c (patch) | |
| tree | 66cdc3cc800c07b708ab282d9323f11886834d83 /pkg/sentry/kernel/memevent | |
| parent | c8cee7108f1a1b37e89961c6dd69ccab97952c86 (diff) | |
Don't allow sigtimedwait to catch unblockable signals
The existing logic attempting to do this is incorrect. Unary ^ has
higher precedence than &^, so mask always has UnblockableSignals
cleared, allowing dequeueSignalLocked to dequeue unblockable signals
(which allows userspace to ignore them).
Switch the logic so that unblockable signals are always masked.
PiperOrigin-RevId: 244058487
Change-Id: Ib19630ac04068a1fbfb9dc4a8eab1ccbdb21edc3
Diffstat (limited to 'pkg/sentry/kernel/memevent')
0 files changed, 0 insertions, 0 deletions