This bug was fixed in the package linux - 5.4.0-42.46
---------------
linux (5.4.0-42.46) focal; urgency=medium
* focal/linux: 5.4.0-42.46 -proposed tracker (LP: #1887069)
* linux 4.15.0-109-generic network DoS regression vs -108 (LP: #1886668)
- SAUCE: Revert "netprio_cgroup: Fix unlimited memory leak of v2 cgroups"
linux (5.4.0-41.45) focal; urgency=medium
* focal/linux: 5.4.0-41.45 -proposed tracker (LP: #1885855)
* Packaging resync (LP: #1786013)
- update dkms package versions
* CVE-2019-19642
- kernel/relay.c: handle alloc_percpu returning NULL in relay_open
* CVE-2019-16089
- SAUCE: nbd_genl_status: null check for nla_nest_start
* CVE-2020-11935
- aufs: do not call i_readcount_inc()
* ip_defrag.sh in net from ubuntu_kernel_selftests failed with 5.0 / 5.3 / 5.4
kernel (LP: #1826848)
- selftests: net: ip_defrag: ignore EPERM
* Update lockdown patches (LP: #1884159)
- SAUCE: acpi: disallow loading configfs acpi tables when locked down
* seccomp_bpf fails on powerpc (LP: #1885757)
- SAUCE: selftests/seccomp: fix ptrace tests on powerpc
* Introduce the new NVIDIA 418-server and 440-server series, and update the
current NVIDIA drivers (LP: #1881137)
- [packaging] add signed modules for the 418-server and the 440-server
flavours
-- Khalid Elmously <[email protected]> Thu, 09 Jul 2020
19:50:26 -0400
** Changed in: linux (Ubuntu)
Status: Invalid => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-11935
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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:
Fix Released
Status in linux source package in Bionic:
Fix Released
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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