diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-27 06:22:13 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-27 06:22:13 +0100 |
| commit | 13a44ba0dca8c133a4368323683a270a3874d88c (patch) | |
| tree | ee41cdfbf84cee2b507d7471287bdd1934f5130b /kernel/trace/ring_buffer.c | |
| parent | 1643281347f80116a500e6a17726351a7265a55c (diff) | |
| parent | d206a76d7d2726f3b096037f2079ce0bd3ba329b (diff) | |
Merge 6.8-rc6 into tty-next
We need the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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; |