VULNERABILITY

Ubuntu: (Multiple Advisories) (CVE-2024-50270): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2024-50270): Linux kernel vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
11/19/2024
Created
03/10/2025
Added
02/20/2025
Modified
03/03/2025

Description

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: avoid overflow in damon_feed_loop_next_input() damon_feed_loop_next_input() is inefficient and fragile to overflows. Specifically, 'score_goal_diff_bp' calculation can overflow when 'score' is high. The calculation is actually unnecessary at all because 'goal' is a constant of value 10,000. Calculation of 'compensation' is again fragile to overflow. Final calculation of return value for under-achiving case is again fragile to overflow when the current score is under-achieving the target. Add two corner cases handling at the beginning of the function to make the body easier to read, and rewrite the body of the function to avoid overflows and the unnecessary bp value calcuation.

Solution(s)

  • ubuntu-upgrade-linux-image-6-11-0-1005-realtime
  • ubuntu-upgrade-linux-image-6-11-0-1008-raspi
  • ubuntu-upgrade-linux-image-6-11-0-1009-aws
  • ubuntu-upgrade-linux-image-6-11-0-1009-azure
  • ubuntu-upgrade-linux-image-6-11-0-1009-azure-fde
  • ubuntu-upgrade-linux-image-6-11-0-1009-gcp
  • ubuntu-upgrade-linux-image-6-11-0-1010-lowlatency
  • ubuntu-upgrade-linux-image-6-11-0-1010-lowlatency-64k
  • ubuntu-upgrade-linux-image-6-11-0-1011-oracle
  • ubuntu-upgrade-linux-image-6-11-0-1011-oracle-64k
  • ubuntu-upgrade-linux-image-6-11-0-1015-oem
  • ubuntu-upgrade-linux-image-6-11-0-18-generic
  • ubuntu-upgrade-linux-image-6-11-0-18-generic-64k
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-fde
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-24-04
  • ubuntu-upgrade-linux-image-generic-hwe-24-04
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-64k
  • ubuntu-upgrade-linux-image-oem-24-04
  • ubuntu-upgrade-linux-image-oem-24-04a
  • ubuntu-upgrade-linux-image-oem-24-04b
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-64k
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-realtime
  • ubuntu-upgrade-linux-image-realtime-hwe-24-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-24-04

References

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