Bug 28691

Mga7 rpms:


SRPMS:
kernel-linus-5.10.27-1.mga7.src.rpm


i586:
kernel-linus-5.10.27-1.mga7-1-1.mga7.i586.rpm
kernel-linus-devel-5.10.27-1.mga7-1-1.mga7.i586.rpm
kernel-linus-devel-latest-5.10.27-1.mga7.i586.rpm
kernel-linus-doc-5.10.27-1.mga7.noarch.rpm
kernel-linus-latest-5.10.27-1.mga7.i586.rpm
kernel-linus-source-5.10.27-1.mga7-1-1.mga7.noarch.rpm
kernel-linus-source-latest-5.10.27-1.mga7.noarch.rpm


x86_64:
kernel-linus-5.10.27-1.mga7-1-1.mga7.x86_64.rpm
kernel-linus-devel-5.10.27-1.mga7-1-1.mga7.x86_64.rpm
kernel-linus-devel-latest-5.10.27-1.mga7.x86_64.rpm
kernel-linus-doc-5.10.27-1.mga7.noarch.rpm
kernel-linus-latest-5.10.27-1.mga7.x86_64.rpm
kernel-linus-source-5.10.27-1.mga7-1-1.mga7.noarch.rpm
kernel-linus-source-latest-5.10.27-1.mga7.noarch.rpm

Summary: Update reqest: kernel-linus-5.10.27-1.mga8 => Update reqest: kernel-linus-5.10.27-1.mga8/7
Whiteboard: (none) => MGA7TOO

Advisory, added to svn:

type: security
subject: Updated kernel-linus packages fix security vulnerabilities
CVE:
 - CVE-2021-28688
 - CVE-2021-28951
 - CVE-2021-28964
 - CVE-2021-28971
 - CVE-2021-28972
 - CVE-2021-29266
src:
  8:
   core:
     - kernel-linus-5.10.27-1.mga8
  7:
   core:
     - kernel-linus-5.10.27-1.mga7
description: |
  This kernel-linus update is based on upstream 5.10.27 and fixes atleast
  the following security issues:

  The fix for XSA-365 includes initialization of pointers such that
  subsequent cleanup code wouldn't use uninitialized or stale values.
  This initialization went too far and may under certain conditions also
  overwrite pointers which are in need of cleaning up.  The lack of
  cleanup would result in leaking persistent grants.  The leak in turn
  would prevent fully cleaning up after a respective guest has died,
  leaving around zombie domains. A malicious or buggy frontend driver
  may be able to cause resource leaks from the corresponding backend
  driver. This can result in a host-wide Denial of Sevice (DoS).
  (CVE-2021-28688 / XSA-371).

  An issue was discovered in fs/io_uring.c in the Linux kernel through
  5.11.8. It allows attackers to cause a denial of service (deadlock)
  because exit may be waiting to park a SQPOLL thread, but concurrently
  that SQPOLL thread is waiting for a signal to start (CVE-2021-28951).

  A race condition was discovered in get_old_root in fs/btrfs/ctree.c in
  the Linux kernel through 5.11.8. It allows attackers to cause a denial
  of service (BUG) because of a lack of locking on an extent buffer 
  before a cloning operation (CVE-2021-28964).

  In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux
  kernel through 5.11.8 on some Haswell CPUs, userspace applications (such
  as perf-fuzzer) can cause a system crash because the PEBS status in a
  PEBS record is mishandled(CVE-2021-28971).

  In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8,
  the RPA PCI Hotplug driver has a user-tolerable buffer overflow when
  writing a new device name to the driver from userspace, allowing userspace
  to write data to the kernel stack frame directly. This occurs because
  add_slot_store and remove_slot_store mishandle drc_name '\0' termination
  (CVE-2021-28972).

  An issue was discovered in the Linux kernel before 5.11.9. drivers/vhost/
  vdpa.c has a use-after-free because v->config_ctx has an invalid value
  upon re-opening a character device (CVE-2021-29266).

  It also adds the following fixes:
  - arm: enable OF_OVERLAY (mga#28596)

  For other upstream fixes, see the referenced changelogs.
references:
 - https://bugs.mageia.org/show_bug.cgi?id=28691
 - https://bugs.mageia.org/show_bug.cgi?id=28596
 - https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.26
 - https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.27
 - https://xenbits.xen.org/xsa/advisory-371.html

Keywords: (none) => advisory

Kernel: 5.10.27-1.mga7 x86_64
Quad Core: Intel Core i7-4790
NVIDIA GM204 [GeForce GTX 970] driver: nouveau
OpenGL: renderer: NV124 v: 4.3 Mesa 20.2.3 

Rebooted with the Linus kernel.  Desktop as before.  Virtualbox running.  ssh login across the lan working with authorized keys.  NFS shares registered.  QA backup folder on NAS mounted OK.  Installed celestia and started it.  It runs fairly well on a 4K monitor with the nouveau driver.  LO writer, vlc sound and video, gwenview, okular, no problems.  Set up wifi printer using MCC -> hardware.    Printed test page OK and a document from LO but then disaster struck - lpr no longer works.  I have been using it from within a label page printing script for over 25 years.  I have done nothing except what is required for every installation when adding a printer.  Now commands such as this fail -
$ lpr -Pokda tmp/abc-0.ps
lpr: Error - The printer or class does not exist.

CUPS certainly sees the printer in firefox but there are no classes defined - a facility that has never been needed.  Under printers -> maintenance it prints a test page OK.  Something may be missing this time round.

CC: (none) => tarazed25

Panic over.  Had forgotten to connect the printer to the server.  Getting too old and senile for this job.

An update for this issue has been pushed to the Mageia Updates repository.

https://advisories.mageia.org/MGASA-2021-0175.html

Status: NEW => RESOLVED
Resolution: (none) => FIXED