[LU-12266] Fix up non-directory creation in SGID directories

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.13.0, Lustre 2.12.2, Lustre 2.10.8
• Affects Version/s: Lustre 2.10.7, Lustre 2.12.1
• Severity: 3
• Assignee: Sebastien Buisson
• Reporter: Sebastien Buisson

Description

If a non-directory item is created in a SGID directory, it is possible that the SGID flag is not properly cleared, leaving the item with incorrect group ownership and flags.

This is mitigated by mounting Lustre with the -o nosuid mount option on the client.

The upstream kernel has a similar issue that was fixed in commit https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0fa3ecd87848c9c93c2c828ef4c3a8ca36ce46c7

Comments

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/34830/
Subject: LU-12266 mdd: fix up non-dir creation in SGID dirs
Project: fs/lustre-release
Branch: b2_10
Current Patch Set:
Commit: 2726fb6338be8bb5d1b5867c3bbbc574333e9186

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/34829/
Subject: LU-12266 mdd: fix up non-dir creation in SGID dirs
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 51a24b995e91b3d72c4ab02257e701824bae8506

[Peter Jones]

Landed for 2.13

[Gerrit Updater]

Andreas Dilger ([e-mail]) uploaded a new patch: https://review.whamcloud.com/34830
Subject: LU-12266 mdd: fix up non-dir creation in SGID dirs
Project: fs/lustre-release
Branch: b2_10
Current Patch Set: 1
Commit: 4f15cdfdbcc041b0b6fd73cfc630d84c2f488400

[Gerrit Updater]

Andreas Dilger ([e-mail]) uploaded a new patch: https://review.whamcloud.com/34829
Subject: LU-12266 mdd: fix up non-dir creation in SGID dirs
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: 7ba4e4cbc66ccb454395bf105523c7f57af4e556

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/34809/
Subject: LU-12266 mdd: fix up non-dir creation in SGID dirs
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 534f10e45ab1f575a0a0c81964d4792ec33696fa

[Gerrit Updater]

Sebastien Buisson ([e-mail]) uploaded a new patch: https://review.whamcloud.com/34809
Subject: LU-12266 mdd: clear SGID bit on non-dirs for non-members
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: b018425ae88a7348ef4c265ff5d8ed4129d136d7