Bug 29572

Advisory, added to svn:

type: security
subject: Updated kernel-linus packages fix security vulnerabilities
CVE:
 - CVE-2021-3744
 - CVE-2021-3764
 - CVE-2021-20321
 - CVE-2021-41864
src:
  8:
   core:
     - kernel-linus-5.10.75-1.mga8
description: |
  This kernel-linus update is based on upstream 5.10.75 and fixes atleast the
  following security issues:

  A memory leak in the ccp_run_aes_gcm_cmd() function in drivers/crypto/
  ccp/ccp-ops.c in the Linux kernel allows malicious users to cause a
  denial of service (memory consumption) (CVE-2021-3744).

  A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd()
  function that allows an malicious user to cause a denial of service
  (CVE-2021-3764).

  A race condition accessing file object in the Linux kernel OverlayFS
  subsystem was found in the way users do rename in specific way with
  OverlayFS. A local user could use this flaw to crash the system
  (CVE-2021-20321).

  prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel
  through 5.14.9 allows unprivileged users to trigger an eBPF multiplication
  integer overflow with a resultant out-of-bounds write (CVE-2021-41864).

  For other upstream fixes, see the referenced changelogs. 
references:
 - https://bugs.mageia.org/show_bug.cgi?id=29572
 - https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.71
 - https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.72
 - https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.73
 - https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.74
 - https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.75

Keywords: (none) => advisory

Installed the linus kernel but could not find it in the list.
Removed a large number of older kenels and ran `drakboot --boot`.
Rebooted smoothly, building nvidia graphics and virtualbox driver on the fly.
Kernel: 5.10.75-1.mga8 x86_64
Quad Core Intel Core i7-4790
NVIDIA GM204 [GeForce GTX 970] driver: nvidia v: 470.74

Mate desktop functioning.  Had a job getting bluetooth going again - working fine now.  Sound and video OK.  Stellarium and OpenCPN started up.  networking and NFS shares OK.  stress tests for cpu loading, memory, i/o and disk exchanges.  The disk test got stuck - hit it with ^C after about 10 minutes.  Pulled the plug on a USB drive.  Connection reestablished on plugging in.  A long unmaintained 64-bit Mageia 7 guest booted fine in virtualbox. vdi sits on an external drive.  mga7 i686 booted in virtualbox also.

CC: (none) => tarazed25

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

https://advisories.mageia.org/MGASA-2021-0490.html

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