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| author | Pavel Begunkov <asml.silence@gmail.com> | 2025-11-07 18:41:26 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-11-13 15:37:46 -0500 |
| commit | 826ce37a842633efe1bb763e4b13045d74060d72 (patch) | |
| tree | 87d0df03ec83b0e320f2cb962c8c930ae2cdbfb3 /tools/perf/scripts/python/stackcollapse.py | |
| parent | c43fe1e6d79d971f36e309ba63e0a2a394638c61 (diff) | |
io_uring: fix regbuf vector size truncation
commit 146eb58629f45f8297e83d69e64d4eea4b28d972 upstream.
There is a report of io_estimate_bvec_size() truncating the calculated
number of segments that leads to corruption issues. Check it doesn't
overflow "int"s used later. Rough but simple, can be improved on top.
Cc: stable@vger.kernel.org
Fixes: 9ef4cbbcb4ac3 ("io_uring: add infra for importing vectored reg buffers")
Reported-by: Google Big Sleep <big-sleep-vuln-reports+bigsleep-458654612@google.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Günther Noack <gnoack@google.com>
Tested-by: Günther Noack <gnoack@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions