https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-16178 Lustre <p>This Ubuntu 20.04 security-related kernel patch collides with ldiskfs patches in ext4-pdirop.patch and prevents Lustre from building:</p> <p><a href="https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/fs/ext4?h=master-next&amp;id=ccdac72d6710c960ea6a194b46d65f73a37bb8ab" class="external-link" target="_blank" rel="nofollow noopener">https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/fs/ext4?h=master-next&amp;id=ccdac72d6710c960ea6a194b46d65f73a37bb8ab</a></p> <p> </p> <p>Since it is security related and pretty isolated, I imagine the other distros will eventually cherry-pick it as well (I haven't checked the other distros yet).</p> <p>The upstream commit is 3ba733f879c2a88910744647e41edeefbc0d92b2</p> Ubuntu 20.04 <br/> Likely other distros at some point as well LU-16178

Upstream kernel security patch to fs/ext4/namei.c breaks ext4-pdirop.patch

Bug Major Open Unresolved WC Triage Brian Barbisch ubuntu Wed, 21 Sep 2022 15:37:23 +0000 Mon, 8 Jan 2024 23:48:43 +0000 Lustre 2.15.1 0 4 <p>Which kernel (uname -r). Ubuntu 20.04 runs from 5.4 to 5.15 kernels.</p> <p>Apologies, it looks like it is only in the bionic / 18.04 stream so far, and only in the 5.4-hwe kernel:<br/> <a href="https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/fs/ext4?h=hwe-5.4&amp;id=b3787475c8b82a0b39812379248ab7ce336b7448" class="external-link" target="_blank" rel="nofollow noopener">https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/fs/ext4?h=hwe-5.4&amp;id=b3787475c8b82a0b39812379248ab7ce336b7448</a></p> <p> </p> <p>That would be <a href="https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/?h=hwe-5.4" class="external-link" target="_blank" rel="nofollow noopener">5.4-5.4.0-126.142~18.04.1</a></p> <p> </p> <p>It is also in master-next for 18.04 (<a href="https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/?h=master-next" class="external-link" target="_blank" rel="nofollow noopener">4.15.0-194.205</a>)<br/> <a href="https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/fs/ext4?h=master-next&amp;id=ccdac72d6710c960ea6a194b46d65f73a37bb8ab" class="external-link" target="_blank" rel="nofollow noopener">https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/fs/ext4?h=master-next&amp;id=ccdac72d6710c960ea6a194b46d65f73a37bb8ab</a></p> <p> </p> <p>So it seems like I'm premature in opening this issue for 20.04.  I imagine this change won't make it there until a future round of patches.  Up to you what you want to do with this issue in the meantime.</p> <p>Actually, I did find it in Ubuntu 20.04 as well.  Here is the commit:</p> <p><a href="https://kernel.ubuntu.com/git/ubuntu/ubuntu-focal.git/commit/fs/ext4?h=Ubuntu-5.4.0-128.144&amp;id=b3787475c8b82a0b39812379248ab7ce336b7448" class="external-link" target="_blank" rel="nofollow noopener">https://kernel.ubuntu.com/git/ubuntu/ubuntu-focal.git/commit/fs/ext4?h=Ubuntu-5.4.0-128.144&amp;id=b3787475c8b82a0b39812379248ab7ce336b7448</a></p> <p> </p> <p>That is in <a href="https://kernel.ubuntu.com/git/ubuntu/ubuntu-focal.git/commit/?h=master-next" class="external-link" target="_blank" rel="nofollow noopener">5.4.0-128.144</a></p> <p>I looked back and it seems like the 5.4.0-126.142 Ubuntu kernel is the first that I can find to have the commit in the Ubuntu 20.04 series (assuming I'm looking at this properly):</p> <p><a href="https://kernel.ubuntu.com/git/ubuntu/ubuntu-focal.git/commit/fs/ext4?h=Ubuntu-5.4.0-126.142&amp;id=b3787475c8b82a0b39812379248ab7ce336b7448" class="external-link" target="_blank" rel="nofollow noopener">https://kernel.ubuntu.com/git/ubuntu/ubuntu-focal.git/commit/fs/ext4?h=Ubuntu-5.4.0-126.142&amp;id=b3787475c8b82a0b39812379248ab7ce336b7448</a></p> Related LU-16347 LU-15781 Development Rank 1|i030tz: Rank (Obsolete) 9223372036854775807 Severity