vulnerability
Red Hat: CVE-2023-53555: kernel: mm/damon/core: initialize damo_filter->list from damos_new_filter() (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:M/Au:M/C:N/I:P/A:C) | Oct 4, 2025 | Nov 14, 2025 | Feb 13, 2026 |
Severity
5
CVSS
(AV:L/AC:M/Au:M/C:N/I:P/A:C)
Published
Oct 4, 2025
Added
Nov 14, 2025
Modified
Feb 13, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/core: initialize damo_filter->list from damos_new_filter()
damos_new_filter() is not initializing the list field of newly allocated
filter object. However, DAMON sysfs interface and DAMON_RECLAIM are not
initializing it after calling damos_new_filter(). As a result, accessing
uninitialized memory is possible. Actually, adding multiple DAMOS filters
via DAMON sysfs interface caused NULL pointer dereferencing. Initialize
the field just after the allocation from damos_new_filter().
Solutions
redhat-upgrade-kernelredhat-upgrade-kernel-rt
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