Syzbot CI

Subject	UUID and GUID user and group ids (*_r system calls)
Author	jan.koester@tuxist.de
Date	2026-10-21 03:15:21 +0000 UTC
Version
Cc	arnd@arndb.de audit@vger.kernel.org brauner@kernel.org jack@suse.cz jan.koester@tuxist.de keyrings@vger.kernel.org linux-api@vger.kernel.org linux-arch@vger.kernel.org linux-cifs@vger.kernel.org linux-ext4@vger.kernel.org linux-fsdevel@vger.kernel.org linux-kernel@vger.kernel.org linux-nfs@vger.kernel.org linux-security-module@vger.kernel.org netdev@vger.kernel.org paul@paul-moore.com serge@hallyn.com tytso@mit.edu viro@zeniv.linux.org.uk

Subject

UUID and GUID user and group ids (*_r system calls)

Author

jan.koester@tuxist.de

Date

2026-10-21 03:15:21 +0000 UTC

Version

arnd@arndb.de audit@vger.kernel.org brauner@kernel.org jack@suse.cz jan.koester@tuxist.de keyrings@vger.kernel.org linux-api@vger.kernel.org linux-arch@vger.kernel.org linux-cifs@vger.kernel.org linux-ext4@vger.kernel.org linux-fsdevel@vger.kernel.org linux-kernel@vger.kernel.org linux-nfs@vger.kernel.org linux-security-module@vger.kernel.org netdev@vger.kernel.org paul@paul-moore.com serge@hallyn.com tytso@mit.edu viro@zeniv.linux.org.uk

Name	Content [All]
[RFC PATCH v2 01/41] uuid: move uuid_t and guid_t into <linux/uuid_types.h>	[Body]
[RFC PATCH v2 02/41] uapi: add <linux/uidgid_r.h> for 128 bit capable user and group ids	[Body]
[RFC PATCH v2 03/41] uidgid: add uid_is_legacy() and gid_is_legacy()	[Body]
[RFC PATCH v2 04/41] net: sock: read sk_uid through a seqcount	[Body]
[RFC PATCH v2 05/41] af_unix: keep sender ids in skb->cb only when they are classic ids	[Body]
[RFC PATCH v2 06/41] netlink: keep classic sender ids in skb->cb	[Body]
[RFC PATCH v2 07/41] Bluetooth: keep classic sender ids in skb->cb	[Body]
[RFC PATCH v2 08/41] smb: client: use __kuid_val() for the unix SIDs of the caller	[Body]
[RFC PATCH v2 09/41] uidgid: let kuid_t and kgid_t hold a UUID or a GUID	[Body]
[RFC PATCH v2 10/41] uidgid: convert between kernel ids and the ids of the *_r system calls	[Body]
[RFC PATCH v2 11/41] fscrypt: show the whole uid in the description of user key claims	[Body]
[RFC PATCH v2 12/41] keys: name per-user keyrings of UUID and GUID users by the whole uid	[Body]
[RFC PATCH v2 13/41] ublk: refuse unprivileged devices to UUID and GUID users	[Body]
[RFC PATCH v2 14/41] nfsd: don't hand out uid 0 for read layouts of UUID-owned files	[Body]
[RFC PATCH v2 15/41] SUNRPC: name UUID and GUID users to gssd as uid_r=	[Body]
[RFC PATCH v2 16/41] ecryptfs: hash daemons by kuid_hash()	[Body]
[RFC PATCH v2 17/41] quota: don't account UUID and GUID owners	[Body]
[RFC PATCH v2 18/41] fs: keep UUID and GUID owners off filesystems that can't store them	[Body]
[RFC PATCH v2 19/41] cred: add the _r variants of the get/setid() system calls	[Body]
[RFC PATCH v2 20/41] groups: add getgroups_r() and setgroups_r()	[Body]
[RFC PATCH v2 21/41] fs: add chown_r(), lchown_r(), fchown_r() and fchownat_r()	[Body]
[RFC PATCH v2 22/41] arch: wire up the *_r uid and gid system calls	[Body]
[RFC PATCH v2 23/41] statx: report UUID and GUID owners	[Body]
[RFC PATCH v2 24/41] shmem, ramfs: allow UUID and GUID owners	[Body]
[RFC PATCH v2 25/41] uidgid: parse and print ids in their text form	[Body]
[RFC PATCH v2 26/41] proc: show UUID and GUID ids in status, accept them for loginuid	[Body]
[RFC PATCH v2 27/41] audit: log UUID and GUID ids in full	[Body]
[RFC PATCH v2 28/41] net: add SO_PEERCRED_R, SO_PEERGROUPS_R and SCM_CREDENTIALS_R	[Body]
[RFC PATCH v2 29/41] signal: report the sender's UUID or GUID uid in si_uid_r	[Body]
[RFC PATCH v2 30/41] ipc: add IPC_STAT_R and IPC_SET_R	[Body]
[RFC PATCH v2 31/41] ext4: add the uid_r feature for UUID and GUID owners	[Body]
[RFC PATCH v2 32/41] ext4: let uid_r be turned on while the filesystem is mounted	[Body]
[RFC PATCH v2 33/41] posix_acl: support UUID and GUID entries	[Body]
[RFC PATCH v2 34/41] ext4: store ACLs with UUID and GUID entries on uid_r filesystems	[Body]
[RFC PATCH v2 35/41] Documentation: describe UUID and GUID user and group ids	[Body]
[RFC PATCH v2 36/41] selftests: add tests for UUID and GUID ids	[Body]
[RFC PATCH v2 37/41] ovl: allow UUID and GUID owners when the upper layer does	[Body]
[RFC PATCH v2 38/41] devpts: allow UUID and GUID owners	[Body]
[RFC PATCH v2 39/41] ksmbd: log in UUID and GUID users and map them to SIDs	[Body]
[RFC PATCH v2 40/41] nfsd, nfs: carry UUID and GUID owners as their text form	[Body]
[RFC PATCH v2 41/41] Documentation: uid_r: describe SMB and NFSv4	[Body]

Name

Content [All]

[RFC PATCH v2 01/41] uuid: move uuid_t and guid_t into <linux/uuid_types.h>

[RFC PATCH v2 02/41] uapi: add <linux/uidgid_r.h> for 128 bit capable user and group ids

[RFC PATCH v2 03/41] uidgid: add uid_is_legacy() and gid_is_legacy()

[RFC PATCH v2 04/41] net: sock: read sk_uid through a seqcount

[RFC PATCH v2 05/41] af_unix: keep sender ids in skb->cb only when they are classic ids

[RFC PATCH v2 06/41] netlink: keep classic sender ids in skb->cb

[RFC PATCH v2 07/41] Bluetooth: keep classic sender ids in skb->cb

[RFC PATCH v2 08/41] smb: client: use __kuid_val() for the unix SIDs of the caller

[RFC PATCH v2 09/41] uidgid: let kuid_t and kgid_t hold a UUID or a GUID

[RFC PATCH v2 10/41] uidgid: convert between kernel ids and the ids of the *_r system calls

[RFC PATCH v2 11/41] fscrypt: show the whole uid in the description of user key claims

[RFC PATCH v2 12/41] keys: name per-user keyrings of UUID and GUID users by the whole uid

[RFC PATCH v2 13/41] ublk: refuse unprivileged devices to UUID and GUID users

[RFC PATCH v2 14/41] nfsd: don't hand out uid 0 for read layouts of UUID-owned files

[RFC PATCH v2 15/41] SUNRPC: name UUID and GUID users to gssd as uid_r=

[RFC PATCH v2 16/41] ecryptfs: hash daemons by kuid_hash()

[RFC PATCH v2 17/41] quota: don't account UUID and GUID owners

[RFC PATCH v2 18/41] fs: keep UUID and GUID owners off filesystems that can't store them

[RFC PATCH v2 19/41] cred: add the *_r variants of the get/set*id() system calls

[RFC PATCH v2 20/41] groups: add getgroups_r() and setgroups_r()

[RFC PATCH v2 21/41] fs: add chown_r(), lchown_r(), fchown_r() and fchownat_r()

[RFC PATCH v2 22/41] arch: wire up the *_r uid and gid system calls

[RFC PATCH v2 23/41] statx: report UUID and GUID owners

[RFC PATCH v2 24/41] shmem, ramfs: allow UUID and GUID owners

[RFC PATCH v2 25/41] uidgid: parse and print ids in their text form

[RFC PATCH v2 26/41] proc: show UUID and GUID ids in status, accept them for loginuid

[RFC PATCH v2 27/41] audit: log UUID and GUID ids in full

[RFC PATCH v2 28/41] net: add SO_PEERCRED_R, SO_PEERGROUPS_R and SCM_CREDENTIALS_R

[RFC PATCH v2 29/41] signal: report the sender's UUID or GUID uid in si_uid_r

[RFC PATCH v2 30/41] ipc: add IPC_STAT_R and IPC_SET_R

[RFC PATCH v2 31/41] ext4: add the uid_r feature for UUID and GUID owners

[RFC PATCH v2 32/41] ext4: let uid_r be turned on while the filesystem is mounted

[RFC PATCH v2 33/41] posix_acl: support UUID and GUID entries

[RFC PATCH v2 34/41] ext4: store ACLs with UUID and GUID entries on uid_r filesystems

[RFC PATCH v2 35/41] Documentation: describe UUID and GUID user and group ids

[RFC PATCH v2 36/41] selftests: add tests for UUID and GUID ids

[RFC PATCH v2 37/41] ovl: allow UUID and GUID owners when the upper layer does

[RFC PATCH v2 38/41] devpts: allow UUID and GUID owners

[RFC PATCH v2 39/41] ksmbd: log in UUID and GUID users and map them to SIDs

[RFC PATCH v2 40/41] nfsd, nfs: carry UUID and GUID owners as their text form

[RFC PATCH v2 41/41] Documentation: uid_r: describe SMB and NFSv4

Session 2026-10-21

1 Findings

ID (for dev)	18dd4c4d-e285-4c02-a103-bcdb0dee84eb
Status	finished
Triaged	OK [Log]
Execution Log	[Link]

Test	Base	Patched	Verdict
[KASAN] Build Base	24a19b953e2a3d0ea5a8c4951a0ab8f32720c907 [Config]		passed [Log]
[KASAN] Boot test: Base	24a19b953e2a3d0ea5a8c4951a0ab8f32720c907 [Config]		passed [Log]
[KASAN] Build Patched		24a19b953e2a3d0ea5a8c4951a0ab8f32720c907 [Config] [Log] [patched]	failed [Log]
finding kernel build error Log

Patches (41)

Series Summary

Sessions

Session 2026-10-21