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security: add total sample cache size limit in PulseAudio protocol

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There was no limit on the total size of the sample cache. A client
could upload many samples to exhaust server memory. Add a configurable
pulse.max-sample-cache property (default 64MB) to cap the total size
of all cached samples.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Wim Taymans 2026-04-29 16:39:57 +02:00
parent 37990b5e90
commit 52afec565b
5 changed files with 18 additions and 0 deletions
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src/modules/module-protocol-pulse/internal.h
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@ -37,6 +37,7 @@ struct defs {
uint32_t quantum_limit;
uint32_t idle_timeout;
uint32_t max_streams;
uint32_t max_sample_cache;
};
struct stats {