This bug was fixed in the package linux - 5.4.0-37.41
---------------
linux (5.4.0-37.41) focal; urgency=medium
* CVE-2020-0543
- SAUCE: x86/speculation/spectre_v2: Exclude Zhaoxin CPUs from SPECTRE_V2
- SAUCE: x86/cpu: Add a steppings field to struct x86_cpu_id
- SAUCE: x86/cpu: Add 'table' argument to cpu_matches()
- SAUCE: x86/speculation: Add Special Register Buffer Data Sampling (SRBDS)
mitigation
- SAUCE: x86/speculation: Add SRBDS vulnerability and mitigation
documentation
- SAUCE: x86/speculation: Add Ivy Bridge to affected list
-- Marcelo Henrique Cerri <[email protected]> Wed, 03 Jun
2020 11:24:23 -0300
** Changed in: linux (Ubuntu Focal)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-0543
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https://bugs.launchpad.net/bugs/1876699
Title:
add 16-bit width registers support for EEPROM at24 device
Status in linux package in Ubuntu:
Invalid
Status in linux source package in Bionic:
Fix Committed
Status in linux source package in Focal:
Fix Released
Bug description:
SRU For Bionic
[Impact]
Larger EEPROM devices that use 16-bit addresses couldn't be accessed.
The i2c/smbus currently only support to access data with 8-bit width of
address. In some larger device, such as larger EEPROM, it requires to
access the address large than 0xff, so it needs to extend address space
to 16-bit width.
[Fix]
This commit is derivated from below commit, and then modified and provided
by customer
https://patchwork.ozlabs.org/patch/545292/
Unfortunately, this commit doesn't get into mainline in the end, so I migrate
the commit to latest kernel and finally get it merged.
https://lkml.org/lkml/2020/4/24/635
[Test]
Verified on Eurotech's platforms.
[Regression Potential]
Low, this patch only changes the behavior of the device which has
AT24_FLAG_ADDR16 flag and change the page_size to 64 if the device name is
24c256.
=====================================
SRU For Focal
[Impact]
Larger EEPROM devices that use 16-bit addresses couldn't be accessed.
The i2c/smbus currently only support to access data with 8-bit width of
address. In some larger device, such as larger EEPROM, it requires to
access the address large than 0xff, so it needs to extend address space
to 16-bit width.
[Fix]
Clear cherry pick from linux-next
82f25bd73c0b regmap-i2c: add 16-bit width registers support
[Test]
Verified on Eurotech's platforms.
[Regression Potential]
Low, this patch provides new access functions for 16-bit registers,
shouldn't affect any other devices which are already working well.
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