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NVD / CVE Program· CNA Linux

CVE-2023-53453: drm/radeon: free iio for atombios when driver shutdown

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: 0.16% (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 107b8b542bb9dab4cbdc3276c85fbdd7f6782313, 4773fadedca918faec443daaca5e4ea1c0ced144, 9cdb96b55651c92fc949cfd54124406c3c912b6b.

Low priority for now. Upgrade to Linux Linux 107b8b542bb9dab4cbdc3276c85fbdd7f6782313, 4773fadedca918faec443daaca5e4ea1c0ced144, 9cdb96b55651c92fc949cfd54124406c3c912b6b 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: drm/radeon: free iio for atombios when driver shutdown Fix below kmemleak when unload radeon driver: unreferenced object 0xffff9f8608ede200 (size 512): comm "systemd-udevd", pid 326, jiffies 4294682822 (age 716.338s) hex dump (first 32 bytes): 00 00 00 00 c4 aa ec aa 14 ab 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000062fadebe>] kmem_cache_alloc_trace+0x2f1/0x500 [<00000000b6883cea>] atom_parse+0x117/0x230 [radeon] [<00000000158c23fd>] radeon_atombios_init+0xab/0x170 [radeon] [<00000000683f672e>] si_init+0x57/0x750 [radeon] [<00000000566cc31f>] radeon_device_init+0x559/0x9c0 [radeon] [<0000000046efabb3>] radeon_driver_load_kms+0xc1/0x1a0 [radeon] [<00000000b5155064>] drm_dev_register+0xdd/0x1d0 [<0000000045fec835>] radeon_pci_probe+0xbd/0x100 [radeon] [<00000000e69ecca3>] pci_device_probe+0xe1/0x160 [<0000000019484b76>] really_probe.part.0+0xc1/0x2c0 [<000000003f2649da>] __driver_probe_device+0x96/0x130 [<00000000231c5bb1>] driver_probe_device+0x24/0xf0 [<0000000000a42377>] __driver_attach+0x77/0x190 [<00000000d7574da6>] bus_for_each_dev+0x7f/0xd0 [<00000000633166d2>] driver_attach+0x1e/0x30 [<00000000313b05b8>] bus_add_driver+0x12c/0x1e0 iio was allocated in atom_index_iio() called by atom_parse(), but it doesn't got released when the dirver is shutdown. Fix this kmemleak by free it in radeon_atombios_fini().

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Oct 1, 2025
Updated
Nov 5, 2026
EPSS
0.1% · 5th 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%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-53453

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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 kernel2.6.31 and later · before 4.14.308
  • linux linux kernel4.15 and later · before 4.19.276
  • linux linux kernel4.20 and later · before 5.4.235
  • linux linux kernel5.5 and later · before 5.10.173
  • linux linux kernel5.11 and later · before 5.15.99
  • linux linux kernel5.16 and later · before 6.1.16
  • linux linux kernel6.2 and later · before 6.2.3

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

    • 2.6.31affected
    • 771fe6b912fca54f03e8a72eb63058b582775362 and later · before cb109cedbba11c33473e6780c256d8442a9e4460affected · git
    • 771fe6b912fca54f03e8a72eb63058b582775362 and later · before 9cdb96b55651c92fc949cfd54124406c3c912b6baffected · git
    • 771fe6b912fca54f03e8a72eb63058b582775362 and later · before f9f55fc64928b5e30d78f861c5fc76db9e769ebbaffected · git
    • 771fe6b912fca54f03e8a72eb63058b582775362 and later · before ce9e9d3dcbb0d1551ffd1a7f16e7c051f3ba4140affected · git
    • 771fe6b912fca54f03e8a72eb63058b582775362 and later · before cda2f7efbc2d857220dad32e315a54565b285c1caffected · git
    • 771fe6b912fca54f03e8a72eb63058b582775362 and later · before 107b8b542bb9dab4cbdc3276c85fbdd7f6782313affected · git
    • 771fe6b912fca54f03e8a72eb63058b582775362 and later · before e2791f2f4d1d804e45fa91b14295c326b64c65f1affected · git
    • 771fe6b912fca54f03e8a72eb63058b582775362 and later · before 4773fadedca918faec443daaca5e4ea1c0ced144affected · git
    • before 2.6.31not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.20-16.1.20-1

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-2023-53450Oct 1, 2025 · ext4: remove a BUG_ON in ext4_mb_release_group_pa()
    22Monitor
  • ← EarlierCVE-2023-53452Oct 1, 2025 · wifi: rtw89: fix potential race condition between napi_init and napi_enable
    18Monitor
  • Later →CVE-2023-53454Oct 1, 2025 · HID: multitouch: Correct devm device reference for hidinput input_dev name
    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 Linux107b8b542bb9dab4cbdc3276c85fbdd7f6782313Vendor (CNA)
Linux Linux4773fadedca918faec443daaca5e4ea1c0ced144Vendor (CNA)
Linux Linux9cdb96b55651c92fc949cfd54124406c3c912b6bVendor (CNA)
Linux Linuxcb109cedbba11c33473e6780c256d8442a9e4460Vendor (CNA)
Linux Linuxcda2f7efbc2d857220dad32e315a54565b285c1cVendor (CNA)
Linux Linuxce9e9d3dcbb0d1551ffd1a7f16e7c051f3ba4140Vendor (CNA)
Linux Linuxe2791f2f4d1d804e45fa91b14295c326b64c65f1Vendor (CNA)
Linux Linuxf9f55fc64928b5e30d78f861c5fc76db9e769ebbVendor (CNA)
debian:linux6.1.20-1 · Debian:12Package 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.

No nightly-computed relations.

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-401 · Missing Release of Memory after Effective Lifetime

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. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

Show all references (7 more)

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

All records