[Bug 1931855] Re: UAF on CAN BCM bcm_rx_handler

2021-07-13 Thread Stefan Bader
** Tags removed: verification-needed-focal verification-needed-hirsute
** Tags added: kernel-cve-tracking-bug

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Title:
  UAF on CAN BCM bcm_rx_handler

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[Bug 1931855] Re: UAF on CAN BCM bcm_rx_handler

2021-07-01 Thread Ubuntu Kernel Bot
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
focal' to 'verification-done-focal'. If the problem still exists, change
the tag 'verification-needed-focal' to 'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-focal

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Title:
  UAF on CAN BCM bcm_rx_handler

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[Bug 1931855] Re: UAF on CAN BCM bcm_rx_handler

2021-06-24 Thread Ubuntu Kernel Bot
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
hirsute' to 'verification-done-hirsute'. If the problem still exists,
change the tag 'verification-needed-hirsute' to 'verification-failed-
hirsute'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-hirsute

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Title:
  UAF on CAN BCM bcm_rx_handler

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[Bug 1931855] Re: UAF on CAN BCM bcm_rx_handler

2021-06-22 Thread Thadeu Lima de Souza Cascardo
** Summary changed:

- placeholder bug
+ UAF on CAN BCM bcm_rx_handler

** Description changed:

- This reports a bug.
+ [Impact]
+ bcm_rx_handler may run concurrently to can_rx_unregister on bcm_release, 
which will, then, free the bcm_op that is used by bcm_rx_handler, leading to a 
system crash.
+ 
+ [Potential regression]
+ CAN BCM sockets may stop working as expected.
+ 
+ [Test case]
+ Programs from can-utils were run, some of them concurrently.

** Information type changed from Private to Public Security

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Title:
  UAF on CAN BCM bcm_rx_handler

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