Re: [PATCH v3 2/2] selftests/bpf: verify mount idmaps reach inode hooks

On Thu, Sep 10, 2026 at 11:25 PM Matt Bobrowski [off-list ref] wrote:

On Fri, Sep 04, 2026 at 04:48:56PM +0200, Daan De Meyer via B4 Relay wrote:

quoted

From: Daan De Meyer <redacted>

Extend the BPF LSM selftest to exercise create, link, symlink, mkdir,
mknod, and permission through both the VFS identity idmap and a real
idmapped tmpfs mount.

Record the idmap observed by each hook and verify that every updated hook
receives the mapping used by the VFS operation. This provides regression
coverage for passing mount idmaps through inode security hooks.

Signed-off-by: Daan De Meyer <redacted>

This all looks fine to me. Feel free to add:

Reviewed-by: Matt Bobrowski <matt@bobrowski.net>

Thanks Matt.

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