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CVE.org (no NVD analysis yet)· CNA Linux

CVE-2026-98519: drm/amdgpu: Fix runtime PM leak in amdgpu_debugfs_test_ib_show()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 2556dd3a36beb3a11041ef01b5e9762e2157909f, 2b86ab1bd6673c525adda88819d7658ba9e784ec, 2c1a643942caae938ea84df2648a9b0c136e09be; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 2556dd3a36beb3a11041ef01b5e9762e2157909f, 2b86ab1bd6673c525adda88819d7658ba9e784ec, 2c1a643942caae938ea84df2648a9b0c136e09be; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1 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/amdgpu: Fix runtime PM leak in amdgpu_debugfs_test_ib_show() amdgpu_debugfs_test_ib_show() resumes the device with pm_runtime_get_sync() before taking the reset domain semaphore with down_write_killable(). If the write lock acquisition is interrupted, the function returns without calling pm_runtime_put_autosuspend(), leaking the runtime PM reference acquired for the device and keeping the GPU awake. Drop the runtime PM reference on the interrupted down_write_killable() error path before returning. (cherry picked from commit ec30a576c2d4c0364549e6c04218f50704ef56c8)

—No exploit Fix available
Published
Oct 18, 2026
Updated
Oct 30, 2026
EPSS
0.2% · 12th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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

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When you'll hear from us

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  • when exploit code appears or is weaponized
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  • 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.

—

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

    • 5.10affected
    • 6049db43d6dd9cbb9d7f897839d15b0bc600e23c and later · before 6d2ccd1b810654ec4d26ccda0482283ffe22dda2affected · git
    • 6049db43d6dd9cbb9d7f897839d15b0bc600e23c and later · before 878cfe9f2e2850cc1d998491776db3f7bc58e1ddaffected · git
    • 6049db43d6dd9cbb9d7f897839d15b0bc600e23c and later · before fc5606ac91642d0f184b83ab833148c457c3c331affected · git
    • 6049db43d6dd9cbb9d7f897839d15b0bc600e23c and later · before 2c1a643942caae938ea84df2648a9b0c136e09beaffected · git
    • 6049db43d6dd9cbb9d7f897839d15b0bc600e23c and later · before e016347fb1829489e062ea51a98a51f48b1d582daffected · git
    • 6049db43d6dd9cbb9d7f897839d15b0bc600e23c and later · before c28e74395ab09922bbf5be42bc5a6ed1ba4f3c37affected · git
    • 6049db43d6dd9cbb9d7f897839d15b0bc600e23c and later · before 2556dd3a36beb3a11041ef01b5e9762e2157909faffected · git
    • 6049db43d6dd9cbb9d7f897839d15b0bc600e23c and later · before 2b86ab1bd6673c525adda88819d7658ba9e784ecaffected · git
    • before 5.10not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.9-17.2.9-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-98517Oct 18, 2026 · drm/nouveau/uvmm: fix UAF in nouveau_uvmm_sm when BO is in TTM_PL_SYSTEM
    31Monitor
  • ← EarlierCVE-2026-98518Oct 18, 2026 · drm/nouveau/dmem: pin VRAM for the whole registered range
    28Monitor
  • Later →CVE-2026-98520Oct 18, 2026 · drm/amdkfd: fix use-after-free and multi-container gap in kfd_dev_mapping
    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 Linux2556dd3a36beb3a11041ef01b5e9762e2157909fVendor (CNA)
Linux Linux2b86ab1bd6673c525adda88819d7658ba9e784ecVendor (CNA)
Linux Linux2c1a643942caae938ea84df2648a9b0c136e09beVendor (CNA)
Linux Linux6d2ccd1b810654ec4d26ccda0482283ffe22dda2Vendor (CNA)
Linux Linux878cfe9f2e2850cc1d998491776db3f7bc58e1ddVendor (CNA)
Linux Linuxc28e74395ab09922bbf5be42bc5a6ed1ba4f3c37Vendor (CNA)
Linux Linuxe016347fb1829489e062ea51a98a51f48b1d582dVendor (CNA)
Linux Linuxfc5606ac91642d0f184b83ab833148c457c3c331Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.159.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.113-1~deb12u1 · 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.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 4, 2026+17 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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. Exploit maturity— → 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.

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