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NVD / CVE Program· CNA Linux

CVE-2022-49530: drm/amd/pm: fix double free in si_parse_power_table()

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.28% (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 2615464854505188f909d0c07c37a6623693b5c7, 43eb9b667b95f2a31c63e8949b0d2161b9be59c3, 6c5bdaa1325be7f04b79ea992ab216739192d342.

Low priority for now. Upgrade to Linux Linux 2615464854505188f909d0c07c37a6623693b5c7, 43eb9b667b95f2a31c63e8949b0d2161b9be59c3, 6c5bdaa1325be7f04b79ea992ab216739192d342 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/amd/pm: fix double free in si_parse_power_table() In function si_parse_power_table(), array adev->pm.dpm.ps and its member is allocated. If the allocation of each member fails, the array itself is freed and returned with an error code. However, the array is later freed again in si_dpm_fini() function which is called when the function returns an error. This leads to potential double free of the array adev->pm.dpm.ps, as well as leak of its array members, since the members are not freed in the allocation function and the array is not nulled when freed. In addition adev->pm.dpm.num_ps, which keeps track of the allocated array member, is not updated until the member allocation is successfully finished, this could also lead to either use after free, or uninitialized variable access in si_dpm_fini(). Fix this by postponing the free of the array until si_dpm_fini() and increment adev->pm.dpm.num_ps everytime the array member is allocated.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Aug 5, 2026
EPSS
0.2% · 20th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.8
CNA · Linux
7.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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-2022-49530

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 kernelbefore 4.9.318
  • linux linux kernel4.10 and later · before 4.14.283
  • linux linux kernel4.15 and later · before 4.19.247
  • linux linux kernel4.20 and later · before 5.4.198
  • linux linux kernel5.5 and later · before 5.10.121
  • linux linux kernel5.11 and later · before 5.15.46
  • linux linux kernel5.16 and later · before 5.17.14
  • linux linux kernel5.18 and later · before 5.18.3

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

    • 4.9affected
    • 841686df9f7d2942cfd94d024b8591fa3f74ef7c and later · before 2615464854505188f909d0c07c37a6623693b5c7affected · git
    • 841686df9f7d2942cfd94d024b8591fa3f74ef7c and later · before 6c5bdaa1325be7f04b79ea992ab216739192d342affected · git
    • 841686df9f7d2942cfd94d024b8591fa3f74ef7c and later · before c0e811c4ccf3b42705976285e3a94cc82dea7300affected · git
    • 841686df9f7d2942cfd94d024b8591fa3f74ef7c and later · before af832028af6f44c6c45645757079c4ed6884ade5affected · git
    • 841686df9f7d2942cfd94d024b8591fa3f74ef7c and later · before ca1ce206894dd976275c78ee38dbc19873f22de9affected · git
    • 841686df9f7d2942cfd94d024b8591fa3f74ef7c and later · before a5ce7051db044290b1a95045ff03c249005a3aa4affected · git
    • 841686df9f7d2942cfd94d024b8591fa3f74ef7c and later · before fd2eff8b9dcbe469c3b7bbbc7083ab5ed94de07baffected · git
    • 841686df9f7d2942cfd94d024b8591fa3f74ef7c and later · before 43eb9b667b95f2a31c63e8949b0d2161b9be59c3affected · git
    • 841686df9f7d2942cfd94d024b8591fa3f74ef7c and later · before f3fa2becf2fc25b6ac7cf8d8b1a2e4a86b3b72bdaffected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.18.5-15.18.5-1

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-2022-49528Feb 26, 2025 · media: i2c: dw9714: Disable the regulator when the driver fails to probe
    22Monitor
  • ← EarlierCVE-2022-49529Feb 26, 2025 · drm/amdgpu/pm: fix the null pointer while the smu is disabled
    22Monitor
  • Later →CVE-2022-49531Feb 26, 2025 · loop: implement ->free_disk
    22Monitor

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 Linux2615464854505188f909d0c07c37a6623693b5c7Vendor (CNA)
Linux Linux43eb9b667b95f2a31c63e8949b0d2161b9be59c3Vendor (CNA)
Linux Linux6c5bdaa1325be7f04b79ea992ab216739192d342Vendor (CNA)
Linux Linuxa5ce7051db044290b1a95045ff03c249005a3aa4Vendor (CNA)
Linux Linuxaf832028af6f44c6c45645757079c4ed6884ade5Vendor (CNA)
Linux Linuxc0e811c4ccf3b42705976285e3a94cc82dea7300Vendor (CNA)
Linux Linuxca1ce206894dd976275c78ee38dbc19873f22de9Vendor (CNA)
Linux Linuxf3fa2becf2fc25b6ac7cf8d8b1a2e4a86b3b72bdVendor (CNA)
Linux Linuxfd2eff8b9dcbe469c3b7bbbc7083ab5ed94de07bVendor (CNA)
debian:linux5.18.5-1 · 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.

  • CVE-2026-31608422 days apartsmb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list()
    39Monitor
  • CVE-2026-31609422 days apartsmb: client: avoid double-free in smbd_free_send_io() after smbd_send_batch_flush()
    39Monitor
  • CVE-2026-43011429 days apartnet/x25: Fix potential double free of skb
    39Monitor
  • CVE-2026-43414436 days apartscsi: qla2xxx: Completely fix fcport double free
    39Monitor
  • CVE-2026-52993483 days aparttipc: fix double-free in tipc_buf_append()
    39Monitor
  • CVE-2026-63888508 days apartscsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd()
    39Monitor

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

Weakness class (CWE)

CWE-415 · Double Free

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 (8 more)

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

All records