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| author | Andrei Matei <[email protected]> | 2024-03-27 02:42:44 +0000 |
|---|---|---|
| committer | Alexei Starovoitov <[email protected]> | 2024-03-27 16:56:17 +0000 |
| commit | a8d89feba7e54e691ca7c4efc2a6264fa83f3687 (patch) | |
| tree | 087d15f18cc99fa5355fe72cb0b91188b6c1d858 /scripts/bpf_doc.py | |
| parent | bpf: fix warning for crash_kexec (diff) | |
| download | kernel-a8d89feba7e54e691ca7c4efc2a6264fa83f3687.tar.gz kernel-a8d89feba7e54e691ca7c4efc2a6264fa83f3687.zip | |
bpf: Check bloom filter map value size
This patch adds a missing check to bloom filter creating, rejecting
values above KMALLOC_MAX_SIZE. This brings the bloom map in line with
many other map types.
The lack of this protection can cause kernel crashes for value sizes
that overflow int's. Such a crash was caught by syzkaller. The next
patch adds more guard-rails at a lower level.
Signed-off-by: Andrei Matei <[email protected]>
Acked-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexei Starovoitov <[email protected]>
Diffstat (limited to 'scripts/bpf_doc.py')
0 files changed, 0 insertions, 0 deletions