[34.0.2] backport fd_renumber fixes#11280
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rvolosatovs merged 7 commits intoJul 18, 2025
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The implementation assumed that only the runtime could ever issue FDs, however that's not the case in p1, where guests can choose arbitrary FDs to use (e.g. via `fd_renumber`). Due to incorrect accounting, guests could "mark" arbitrary FDs as "free" and trigger a panic in the host by requesting a new FD. Signed-off-by: Roman Volosatovs <rvolosatovs@riseup.net>
Signed-off-by: Roman Volosatovs <rvolosatovs@riseup.net>
Since `remove` is now only used once, remove it. As a sideffect, this makes the implementation more explicit . Signed-off-by: Roman Volosatovs <rvolosatovs@riseup.net>
Signed-off-by: Roman Volosatovs <rvolosatovs@riseup.net>
Signed-off-by: Roman Volosatovs <rvolosatovs@riseup.net>
prtest:full Signed-off-by: Roman Volosatovs <rvolosatovs@riseup.net>
prtest:full Signed-off-by: Roman Volosatovs <rvolosatovs@riseup.net>
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Jul 18, 2025
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This a security advisory fix PR moved from https://github.com/bytecodealliance/wasmtime-ghsa-fm79-3f68-h2fc/pull/4
this includes #11277 and #11276