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Author: Kuniyuki Iwashima <[email protected]>
Date:   Tue Jun 4 09:52:35 2024 -0700

    af_unix: Annotate data-races around sk->sk_state in UNIX_DIAG.
    
    While dumping AF_UNIX sockets via UNIX_DIAG, sk->sk_state is read
    locklessly.
    
    Let's use READ_ONCE() there.
    
    Note that the result could be inconsistent if the socket is dumped
    during the state change.  This is common for other SOCK_DIAG and
    similar interfaces.
    
    Fixes: c9da99e6475f ("unix_diag: Fixup RQLEN extension report")
    Fixes: 2aac7a2cb0d9 ("unix_diag: Pending connections IDs NLA")
    Fixes: 45a96b9be6ec ("unix_diag: Dumping all sockets core")
    Signed-off-by: Kuniyuki Iwashima <[email protected]>
    Signed-off-by: Paolo Abeni <[email protected]>

 net/unix/diag.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

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git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b

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cp -R b a

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cd a

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git checkout 0aa3be7b3e1f8f997312cc4705f8165e02806f8f

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x lightdm.service - Light Display Manager
     Loaded: loaded (/lib/systemd/system/lightdm.service; enabled; preset: enabled)
     Active: failed (Result: exit-code) since Tue 2024-06-25 03:16:52 AEST; 2min 55s ago
   Duration: 60ms
       Docs: man:lightdm(1)
    Process: 2362 ExecStart=/usr/sbin/lightdm (code=exited, status=1/FAILURE)
   Main PID: 2362 (code=exited, status=1/FAILURE)
        CPU: 98ms

Jun 25 03:16:52 fienix systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 5.
Jun 25 03:16:52 fienix systemd[1]: Stopped lightdm.service - Light Display Manager.
Jun 25 03:16:52 fienix systemd[1]: lightdm.service: Start request repeated too quickly.
Jun 25 03:16:52 fienix systemd[1]: lightdm.service: Failed with result 'exit-code'.
Jun 25 03:16:52 fienix systemd[1]: Failed to start lightdm.service - Light Display Manager.
Jun 25 03:16:52 fienix systemd[1]: lightdm.service: Triggering OnFailure= dependencies.
Jun 25 03:16:52 fienix systemd[1]: lightdm.service: Failed to enqueue OnFailure= job, ignoring: Unit plymouth-quit.service not found.

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cp -R b a

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cd a

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git checkout 0aa3be7b3e1f8f997312cc4705f8165e02806f8f

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git revert 0aa3be7b3e1f8f997312cc4705f8165e02806f8f