diff options
| author | Mark Brown <broonie@kernel.org> | 2025-01-09 11:22:28 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-01-09 11:22:28 +0000 |
| commit | 5640fd07b90ed43225704fecfbbda9d402dba1cf (patch) | |
| tree | 7c9e9e13681499882d3c5d710e37b2f3b088e831 /kernel/trace/ring_buffer.c | |
| parent | a38509fd5cdc125ef54562760a05c68ebd4812bc (diff) | |
| parent | 9d89551994a430b50c4fffcb1e617a057fa76e20 (diff) | |
spi: Merge up v6.13-rc6
This fixes the i.MX6 and newer Meson platforms in my CI.
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 7e257e855dd1..60210fb5b211 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -7019,7 +7019,11 @@ static int __rb_map_vma(struct ring_buffer_per_cpu *cpu_buffer, lockdep_assert_held(&cpu_buffer->mapping_lock); nr_subbufs = cpu_buffer->nr_pages + 1; /* + reader-subbuf */ - nr_pages = ((nr_subbufs + 1) << subbuf_order) - pgoff; /* + meta-page */ + nr_pages = ((nr_subbufs + 1) << subbuf_order); /* + meta-page */ + if (nr_pages <= pgoff) + return -EINVAL; + + nr_pages -= pgoff; nr_vma_pages = vma_pages(vma); if (!nr_vma_pages || nr_vma_pages > nr_pages) |