diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2024-02-26 11:41:07 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2024-02-26 11:41:07 +0100 |
| commit | f112b68f273fb0121cb64e0c3ac06adcb91e32b8 (patch) | |
| tree | 8e5ca44719c39e6d37d9a85c6c1b5759952e3da7 /kernel/trace/ring_buffer.c | |
| parent | aa775edbbe7b44cc732bfa7c56ac3957d84113d5 (diff) | |
| parent | d206a76d7d2726f3b096037f2079ce0bd3ba329b (diff) | |
Merge v6.8-rc6 into drm-next
Thomas Zimmermann asked to backmerge -rc6 for drm-misc branches,
there's a few same-area-changed conflicts (xe and amdgpu mostly) that
are getting a bit too annoying.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index fd4bfe3ecf01..0699027b4f4c 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -5877,6 +5877,10 @@ int ring_buffer_subbuf_order_set(struct trace_buffer *buffer, int order) if (psize <= BUF_PAGE_HDR_SIZE) return -EINVAL; + /* Size of a subbuf cannot be greater than the write counter */ + if (psize > RB_WRITE_MASK + 1) + return -EINVAL; + old_order = buffer->subbuf_order; old_size = buffer->subbuf_size; |