| commit | c701917e647c6aaee5e7bbb7a2c1ca99e8552c58 | [log] [tgz] |
|---|---|---|
| author | Andrii Nakryiko <andriin@fb.com> | Thu Jan 16 22:08:00 2020 -0800 |
| committer | Alexei Starovoitov <ast@kernel.org> | Fri Jan 17 08:33:18 2020 -0800 |
| tree | ed0c7062d3151b9b6cfcb9707830726159069f84 | |
| parent | b7d7f3e185b6e643dcd49d1486b11cade8519008 [diff] |
libbpf: Fix potential multiplication overflow in mmap() size calculation
Prevent potential overflow performed in 32-bit integers, before assigning
result to size_t. Reported by LGTM static analysis.
Fixes: eba9c5f498a1 ("libbpf: Refactor global data map initialization")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200117060801.1311525-4-andriin@fb.com