Bpf hash chains #9866
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Bpf hash chains #9866
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September 25, 2025 14:37
This patch introduces hash chain support for signature verification of arbitrary bpf map objects which was described here: https://lore.kernel.org/linux-security-module/[email protected]/ The UAPI is extended to allow for in-kernel checking of maps passed in via the fd_array. A hash chain is constructed from the maps, in order specified by the signature_maps field. The hash chain is terminated with the hash of the program itself. Signed-off-by: Blaise Boscaccy <[email protected]>
Convert an existing signed lskel test to use the newly introduced map signature hash-chain support added to libbpf. Signed-off-by: Blaise Boscaccy <[email protected]>
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Automatically cleaning up stale PR; feel free to reopen if needed |
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