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| author | Michael Jeanson <mjeanson@efficios.com> | 2025-02-25 15:24:46 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-10 14:43:56 +0200 |
| commit | 30389684dc8b23c98c8ab7d48a90c89a8837567c (patch) | |
| tree | 8faa6fdee1e98b0d01d32acd4ebb2648e1d16c05 /mm/memory.c | |
| parent | e20390ad6bab09973a8fafbe3e8c0d3cafba2658 (diff) | |
rseq: Update kernel fields in lockstep with CONFIG_DEBUG_RSEQ=y
[ Upstream commit 79e10dad1ce3feac7937bedf911d92f486a9e76a ]
With CONFIG_DEBUG_RSEQ=y, an in-kernel copy of the read-only fields is
kept synchronized with the user-space fields. Ensure the updates are
done in lockstep in case we error out on a write to user-space.
Fixes: 7d5265ffcd8b ("rseq: Validate read-only fields under DEBUG_RSEQ config")
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/r/20250225202500.731245-1-mjeanson@efficios.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'mm/memory.c')
0 files changed, 0 insertions, 0 deletions