This bug was fixed in the package linux - 5.11.0-13.14
---------------
linux (5.11.0-13.14) hirsute; urgency=medium
* CVE-2020-27170
- bpf: Prohibit alu ops for pointer types not defining ptr_limit
- bpf, selftests: Fix up some test_verifier cases for unprivileged
* CVE-2020-27171
- bpf: Fix off-by-one for area size in creating mask to left
-- Andrea Righi <[email protected]> Fri, 19 Mar 2021 16:49:32
+0100
** Changed in: linux (Ubuntu)
Status: In Progress => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-27170
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-27171
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-restricted-modules in Ubuntu.
https://bugs.launchpad.net/bugs/1918134
Title:
LRMv4: switch to signing nvidia modules via the Ubuntu Modules signing
key
Status in linux package in Ubuntu:
Fix Released
Status in linux-restricted-modules package in Ubuntu:
Fix Released
Bug description:
To allow decoupling of nvidia-graphics-drivers-<version> streams and
versions from the underlying kernel versions we wish to be able to
sign new kernel modules into an existing kernel after the fact. Under
bug #1898716 we added support for an Ubuntu Modules signing key
certificate. Rebuild the LRM package to make use of this new
signature.
This involves splitting the LRM package into three. linux-restricted-
modules first builds the nvidia-graphics-drivers-* we require signed.
linux-restricted-generate then consumes the .o's produced in that
build and forms a signing custom binary upload for this. linux-
restricted-signatures then consumes the signing result from the LRG
upload and expresses clean redistributible signatures which are
consumed by LRM at installation time. LRG must be embargoed as it
(necessarily) generates fully formed .ko files for signing.
Additional process is added to the kernel build life-cycle to handle
the privacy requirements of the LRG/LRS interaction.
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