https://github.com/torvalds/linux
Revision 3eee1f75f2b9c107d4a097e8b640553376a5b171 authored by Daniel Borkmann on 27 July 2018, 22:17:56 UTC, committed by Daniel Borkmann on 28 July 2018, 19:23:24 UTC
The len > skb_headlen(skb) cannot be used as a maximum upper bound
for the packet length since it does not have any relation to the full
linear packet length when filtering is used from upper layers (e.g.
in case of reuseport BPF programs) as by then skb->data, skb->len
already got mangled through __skb_pull() and others.
Fixes: 4e1ec56cdc59 ("bpf: add skb_load_bytes_relative helper")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
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History 
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Tip revision: 3eee1f75f2b9c107d4a097e8b640553376a5b171 authored by Daniel Borkmann on 27 July 2018, 22:17:56 UTC
bpf: fix bpf_skb_load_bytes_relative pkt length check
bpf: fix bpf_skb_load_bytes_relative pkt length check
Tip revision: 3eee1f7
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | -rw-r--r-- | 12.8 KB |
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 31 bytes |
| .gitattributes | -rw-r--r-- | 30 bytes |
| .gitignore | -rw-r--r-- | 1.5 KB |
| .mailmap | -rw-r--r-- | 9.3 KB |
| COPYING | -rw-r--r-- | 423 bytes |
| CREDITS | -rw-r--r-- | 96.3 KB |
| Kbuild | -rw-r--r-- | 2.2 KB |
| Kconfig | -rw-r--r-- | 321 bytes |
| MAINTAINERS | -rw-r--r-- | 449.4 KB |
| Makefile | -rw-r--r-- | 58.2 KB |
| README | -rw-r--r-- | 800 bytes |
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