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| author | Andrii Nakryiko <andrii@kernel.org> | 2024-04-30 13:19:51 -0700 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2024-05-02 16:41:02 -0700 |
| commit | 00f0e08f23fc007f4a5a71cd7e37fcdb15af0c1b (patch) | |
| tree | 9bf2f7de3fb366f9cda9f3566132e53885be313c /tools/lib/bpf/bpf_helpers.h | |
| parent | 29f38ca3e5ca5cacc33291f22c4848c6907b9d2b (diff) | |
libbpf: fix potential overflow in ring__consume_n()
ringbuf_process_ring() return int64_t, while ring__consume_n() assigns
it to int. It's highly unlikely, but possible for ringbuf_process_ring()
to return value larger than INT_MAX, so use int64_t. ring__consume_n()
does check INT_MAX before returning int result to the user.
Fixes: 4d22ea94ea33 ("libbpf: Add ring__consume_n / ring_buffer__consume_n")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20240430201952.888293-1-andrii@kernel.org
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'tools/lib/bpf/bpf_helpers.h')
0 files changed, 0 insertions, 0 deletions