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NVD / CVE Program· CNA Linux

CVE-2023-53555: mm/damon/core: initialize damo_filter->list from damos_new_filter()

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.13% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 5f1fc67f2cb8d3035d3acd273b48b97835af8afd, da7beebb49c643cd03c54447ed66595936a7a1ce.

Low priority for now. Upgrade to Linux Linux 5f1fc67f2cb8d3035d3acd273b48b97835af8afd, da7beebb49c643cd03c54447ed66595936a7a1ce or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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().

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Oct 4, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 2th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel6.3 and later · before 6.4.11
  • linux linux kernel6.5

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 6.3affected
    • 98def236f63c66629fb6b2d4b69cecffc5b46539 and later · before da7beebb49c643cd03c54447ed66595936a7a1ceaffected · git
    • 98def236f63c66629fb6b2d4b69cecffc5b46539 and later · before 5f1fc67f2cb8d3035d3acd273b48b97835af8afdaffected · git
    • before 6.3not affected · semver
    • 6.4.11 and later · up to and including 6.4.*not affected · semver
    • 6.5 and laternot affected · original_commit_for_fix

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:13linuxbefore 6.4.11-16.4.11-1
openSUSE:Leap 15.6dtb-aarch64before 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-64kbbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-azurebefore 6.4.0-150600.8.55.16.4.0-150600.8.55.1
openSUSE:Leap 15.6kernel-debugbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-defaultbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-default-basebefore 6.4.0-150600.23.78.1.150600.12.34.26.4.0-150600.23.78.1.150600.12.34.2
openSUSE:Leap 15.6kernel-docsbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-kvmsmallbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-obs-buildbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-obs-qabefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-rtbefore 6.4.0-150600.10.58.16.4.0-150600.10.58.1
openSUSE:Leap 15.6kernel-rt_debugbefore 6.4.0-150600.10.58.16.4.0-150600.10.58.1
openSUSE:Leap 15.6kernel-sourcebefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-source-azurebefore 6.4.0-150600.8.55.16.4.0-150600.8.55.1
openSUSE:Leap 15.6kernel-source-rtbefore 6.4.0-150600.10.58.16.4.0-150600.10.58.1
openSUSE:Leap 15.6kernel-symsbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-syms-azurebefore 6.4.0-150600.8.55.16.4.0-150600.8.55.1
openSUSE:Leap 15.6kernel-syms-rtbefore 6.4.0-150600.10.58.16.4.0-150600.10.58.1
openSUSE:Leap 15.6kernel-zfcpdumpbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6_Update_17before 1-150600.13.5.11-150600.13.5.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6-RT_Update_17before 1-150600.1.3.11-150600.1.3.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-64kbbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-defaultbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1

+19

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2023-53553Oct 4, 2025 · HID: hyperv: avoid struct memcpy overrun warning
    22Monitor
  • ← EarlierCVE-2023-53554Oct 4, 2025 · staging: ks7010: potential buffer overflow in ks_wlan_set_encode_ext()
    31Monitor
  • Later →CVE-2023-53556Oct 4, 2025 · iavf: Fix use-after-free in free_netdev
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux5f1fc67f2cb8d3035d3acd273b48b97835af8afdVendor (CNA)
Linux Linuxda7beebb49c643cd03c54447ed66595936a7a1ceVendor (CNA)
debian:linux6.4.11-1 · Debian:13Package registry (OSV)
opensuse:dtb-aarch646.4.0-150600.23.78.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-64kb6.4.0-150600.23.78.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-azure6.4.0-150600.8.55.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-debug6.4.0-150600.23.78.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default6.4.0-150600.23.78.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default-base6.4.0-150600.23.78.1.150600.12.34.2 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-docs6.4.0-150600.23.78.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-kvmsmall6.4.0-150600.23.78.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-obs-build6.4.0-150600.23.78.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-obs-qa6.4.0-150600.23.78.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source-azure6.4.0-150600.8.55.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms-azure6.4.0-150600.8.55.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:kernel-64kb6.4.0-150600.23.78.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-azure6.4.0-150600.8.55.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)
suse:kernel-default6.4.0-150600.23.78.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-default6.4.0-36.1 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-default-base6.4.0-150600.23.78.1.150600.12.34.2 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-default-base6.4.0-36.1.21.13 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-docs6.4.0-150600.23.78.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP6Package registry (OSV)
suse:kernel-kvmsmall6.4.0-36.1 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-rt6.4.0-38.1 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-source6.4.0-150600.23.78.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-source6.4.0-36.1 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-source-azure6.4.0-150600.8.55.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)
suse:kernel-source-rt6.4.0-38.1 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-syms-azure6.4.0-150600.8.55.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)
suse:kernel-zfcpdump6.4.0-150600.23.78.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-50302319 days apartHID: core: zero-initialize the report bufferKEV
    52Plan
  • CVE-2026-52989263 days apartnvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers
    39Monitor
  • CVE-2026-53225264 days apartsctp: fix uninit-value in __sctp_rcv_asconf_lookup()
    36Monitor
  • CVE-2024-47685348 days apartnetfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()
    36Monitor
  • CVE-2026-53170264 days apartaccel/ethosu: reject DMA commands with uninitialized length
    35Monitor
  • CVE-2026-43139214 days apartxfrm6: fix uninitialized saddr in xfrm6_get_saddr()
    34Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-908 · Use of Uninitialized Resource

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records