This bug was fixed in the package linux-oem-5.14 - 5.14.0-1056.63
---------------
linux-oem-5.14 (5.14.0-1056.63) focal; urgency=medium
* focal/linux-oem-5.14: 5.14.0-1056.63 -proposed tracker (LP:
#1997836)
* CVE-2022-4378
- proc: proc_skip_spaces() shouldn't think it is working on C strings
- proc: avoid integer type confusion in get_proc_long
* CVE-2022-45934
- Bluetooth: L2CAP: Fix u8 overflow
* CVE-2022-42896
- Bluetooth: L2CAP: Fix accepting connection request for invalid SPSM
- Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm
* Fix AMD-PState driver for Genoa CPU (LP: #1998106)
- Documentation: amd-pstate: add tracer tool introduction
- Documentation: amd-pstate: grammar and sentence structure updates
- Documentation: amd-pstate: Add unit test introduction
- cpufreq: amd-pstate: cpufreq: amd-pstate: reset MSR_AMD_PERF_CTL register
at
init
- cpufreq: amd-pstate: change amd-pstate driver to be built-in type
- cpufreq: amd-pstate: add amd-pstate driver parameter for mode selection
- Documentation: amd-pstate: add driver working mode introduction
- Documentation: add amd-pstate kernel command line options
-- Timo Aaltonen <[email protected]> Fri, 16 Dec 2022
16:23:14 +0200
** Changed in: linux-oem-5.14 (Ubuntu Focal)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-4378
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-45934
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https://bugs.launchpad.net/bugs/1998106
Title:
Fix AMD-PState driver for Genoa CPU
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem-5.14 package in Ubuntu:
Invalid
Status in linux-oem-5.17 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux-oem-5.14 source package in Focal:
Fix Released
Status in linux-oem-5.17 source package in Focal:
Invalid
Status in linux source package in Jammy:
Fix Committed
Status in linux-oem-5.14 source package in Jammy:
Invalid
Status in linux-oem-5.17 source package in Jammy:
Fix Released
Status in linux source package in Kinetic:
Fix Committed
Status in linux-oem-5.14 source package in Kinetic:
Invalid
Status in linux-oem-5.17 source package in Kinetic:
Invalid
Bug description:
[Impact]
During AMD Genoa development, the datacenter team identified
performance regressions that were root caused in the amd-pstate
driver. A first round of fixes already landed upstream (v6.1-rc7) in
the amd-pstate driver, and should be backported to all the affected
kernels.
[Fix]
Backport the upstream amd-pstate fixes:
https://lore.kernel.org/linux-
pm/[email protected]/T/#m4616d857ca472937d1e1d31131ddc3261fa17b2a
[Regression potential]
Clean cherry-picks of already upstream (v6.1-rc7) fixes, impact a
single driver (amd-pstate) and the new mode (passive) is disabled by
default.
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