Re: [PATCH stable/linux-5.10.y 0/7] Backport Fix incorrect overlayfs mmap() and mprotect() LSM access controls
Amir Goldstein <[email protected]>
| Newsgroups | org.kernel.vger.linux-security-module,org.kernel.vger.bpf,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-kernel,org.kernel.vger.linux-unionfs,org.kernel.vger.selinux,org.kernel.vger.stable |
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| Message-ID | <CAOQ4uxjcD0-PHqqmrpEvkLRgtKJGe8-n+6DQyBngjN2TorwU+g@mail.gmail.com> |
On Mon, Jun 29, 2026 at 8:38 AM Cai Xinchen <[email protected]> wrote: > > ackport the patch series > "Fix incorrect overlayfs mmap() and mprotect() LSM access controls" [1] > to 5.10 lts Chai, First of all, I don't think that stable maintainers are picking backports to 5.10 that were not backported to 6.1 and 5.15. Second, backporting backing_file as a dependency to LTS kernels is a pretty intrusive change, so your description above is very much lacking. Please do not backport backing_file to any of the LTS kernels without providing detailed explanation to try and convince the vfs maintainers that you verified this bacport is safe for the LTS kernel, because honestly, this looks a bit risky for me. Thanks, Amir.