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openat2: increase retry count to 128 #76

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Merged
cyphar merged 1 commit into from
Oct 31, 2025
Merged

openat2: increase retry count to 128 #76

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5 changes: 4 additions & 1 deletion pathrs-lite/internal/fd/openat2_linux.go
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Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,10 @@ func scopedLookupShouldRetry(how *unix.OpenHow, err error) bool {
(errors.Is(err, unix.EAGAIN) || errors.Is(err, unix.EXDEV))
}

const scopedLookupMaxRetries = 32
// This is a fairly arbitrary limit we have just to avoid an attacker being
// able to make us spin in an infinite retry loop -- callers can choose to
// retry on EAGAIN if they prefer.
const scopedLookupMaxRetries = 128

// Openat2 is an [Fd]-based wrapper around unix.Openat2, but with some retry
// logic in case of EAGAIN errors.
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