This bug was fixed in the package linux - 5.8.0-63.71
---
linux (5.8.0-63.71) groovy; urgency=medium
* Possible io_uring regression with QEMU on Ubuntu's kernel (LP: #1935017)
- SAUCE: Revert "block: don't ignore REQ_NOWAIT for direct IO"
linux (5.8.0-62.70) groovy;
This bug was fixed in the package linux - 4.15.0-151.157
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linux (4.15.0-151.157) bionic; urgency=medium
* CVE-2021-33909
- SAUCE: seq_file: Disallow extremely large seq buffer allocations
linux (4.15.0-150.155) bionic; urgency=medium
* bionic/linux: 4.15.0-150.155
root@test-b1:~# uname -a
Linux test-b1 4.15.0-150-generic #155-Ubuntu SMP Sat Jul 3 13:37:31 UTC 2021
x86_64 x86_64 x86_64 GNU/Linux
root@test-b1:~# grep -e ' ref_module' -e ' find_symbol' -e '
each_symbol_section$' -e ' __module_address' -e ' __module_text_address'
/proc/kallsyms
This should be already released in the main Focal kernel. I suspect the
new verification request for that series was triggered by some
derivative which picked it up on rebase.
** Tags removed: verification-needed-focal
** Tags added: verification-done-focal
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root@test-g1:~# uname -a
Linux test-g1 5.8.0-61-generic #68-Ubuntu SMP Tue Jun 29 15:15:10 UTC 2021
x86_64 x86_64 x86_64 GNU/Linux
root@test-g1:~# grep -e ' ref_module' -e ' find_symbol' -e '
each_symbol_section$' -e ' __module_address' -e ' __module_text_address'
/proc/kallsyms
** Description changed:
SRU Justification:
[Impact]
* The following patches removed an exported symbol that will cause
potential disruption and breakage for customers
modules: inherit TAINT_PROPRIETARY_MODULE
modules: return licensing information from find_symbol
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
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-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag
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-
groovy' to 'verification-done-groovy'. If the problem still exists,
change the tag
This bug was fixed in the package linux - 5.4.0-77.86
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linux (5.4.0-77.86) focal; urgency=medium
* UAF on CAN J1939 j1939_can_recv (LP: #1932209)
- SAUCE: can: j1939: delay release of j1939_priv after synchronize_rcu
* UAF on CAN BCM bcm_rx_handler (LP: #1931855)
-
** Changed in: linux (Ubuntu Bionic)
Importance: Undecided => High
** Changed in: linux (Ubuntu Bionic)
Status: New => Fix Committed
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** Changed in: linux (Ubuntu Groovy)
Importance: Undecided => High
** Changed in: linux (Ubuntu Groovy)
Status: New => Fix Committed
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** Changed in: linux (Ubuntu Focal)
Importance: Undecided => High
** Changed in: linux (Ubuntu Focal)
Status: New => Fix Committed
** Changed in: linux (Ubuntu Focal)
Assignee: (unassigned) => Stefan Bader (smb)
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** Summary changed:
- Upstream stable introduced patches that removed exported symbols
+ Upstream v5.9 introduced 'module' patches that removed exported symbols
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