http2: avoid uaf while receiving and sending rst_stream by Eusgor · Pull Request #64166 · nodejs/node · GitHub
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http2: avoid uaf while receiving and sending rst_stream#64166

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http2: avoid uaf while receiving and sending rst_stream#64166
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@Eusgor

@Eusgor Eusgor commented Jun 27, 2026

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Mark the session as receiving around nghttp2_session_mem_recv() and defer RST_STREAM handling while receive is in progress. This prevents closing a stream while nghttp2 still processes it and avoids heap-use-after-free in nghttp2_session_mem_recv2().

Fixes: #64113

Mark the session as receiving around nghttp2_session_mem_recv() and defer
RST_STREAM handling while receive is in progress. This prevents closing a
stream while nghttp2 still processes it and avoids heap-use-after-free in
nghttp2_session_mem_recv2().

Fixes: nodejs#64113
Signed-off-by: Evgeniy Gorbanev <gorbanev.es@gmail.com>
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@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. http2 Issues or PRs related to the http2 subsystem. needs-ci PRs that need a full CI run. labels Jun 27, 2026
@mertcanaltin

mertcanaltin commented Jun 27, 2026

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c++ Issues and PRs that require attention from people who are familiar with C++. http2 Issues or PRs related to the http2 subsystem. needs-ci PRs that need a full CI run.

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Use-after-free error in http2 server

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