Re: [PATCH v4 0/6] fs: improve setgid stripping consistency even more

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From: Christian Brauner (Microsoft) <brauner@xxxxxxxxxx>

On Mon, 17 Oct 2022 17:06:33 +0200, Christian Brauner wrote:
> From: "Christian Brauner (Microsoft)" <brauner@xxxxxxxxxx>
> 
> Hey everyone,
> 
> A long while ago I found a few setgid inheritance bugs in overlayfs in
> certain conditions. Amir recently picked this back up in
> https://lore.kernel.org/linux-fsdevel/20221003123040.900827-1-amir73il@xxxxxxxxx
> and I jumped on board to fix this more generally. This series should
> make setgid stripping more consistent and fix the related overlayfs bugs.
> 
> [...]

Moving this into a branch for some -next exposure:

[1/6] attr: add in_group_or_capable()
      commit: 11c2a8700cdcabf9b639b7204a1e38e2a0b6798e
[2/6] fs: move should_remove_suid()
      commit: e243e3f94c804ecca9a8241b5babe28f35258ef4
[3/6] attr: add setattr_should_drop_sgid()
      commit: 72ae017c5451860443a16fb2a8c243bff3e396b8
[4/6] attr: use consistent sgid stripping checks
      commit: ed5a7047d2011cb6b2bf84ceb6680124cc6a7d95
[5/6] ovl: remove privs in ovl_copyfile()
      commit: b306e90ffabdaa7e3b3350dbcd19b7663e71ab17
[6/6] ovl: remove privs in ovl_fallocate()
      commit: 23a8ce16419a3066829ad4a8b7032a75817af65b

Thank you for commenting and reviewing!
Christian Brauner (Microsoft) <brauner@xxxxxxxxxx>



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