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

CVE-2026-99034: mmc: sdhci-sprd: disable runtime PM on remove

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: 0.16% (FIRST EPSS).
  • Fixed version: Linux Linux 03244b8713d044425db5dbee08037ecd79b684f9, 3a1caa886d41d9bcc9a402906336eda34a90d323, 4dce8c272417a564bd8c8d2ea88ef901e5447f22; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 03244b8713d044425db5dbee08037ecd79b684f9, 3a1caa886d41d9bcc9a402906336eda34a90d323, 4dce8c272417a564bd8c8d2ea88ef901e5447f22; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes 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: mmc: sdhci-sprd: disable runtime PM on remove sdhci_sprd_probe() enables runtime PM, while sdhci_sprd_remove() does not perform the corresponding runtime PM cleanup. The probe failure path disables runtime PM before disabling the clocks, but the normal remove path directly disables clocks that are also managed by the runtime PM callbacks. If the device is runtime suspended, those clocks may already be disabled. Resume the device before removal, disable runtime PM and drop the temporary runtime PM reference before disabling the clocks. This issue was found by manual code inspection.

—No exploit Fix available
Published
Oct 23, 2026
Updated
Oct 30, 2026
EPSS
0.1% · 6th 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 · 0.1%

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

    • 4.20affected
    • fb8bd90f83c4dd86bc7fdae406152d63c5852f92 and later · before a0c7facc0fe9ec772cf8bffac2315a8e1311d39aaffected · git
    • fb8bd90f83c4dd86bc7fdae406152d63c5852f92 and later · before 4dce8c272417a564bd8c8d2ea88ef901e5447f22affected · git
    • fb8bd90f83c4dd86bc7fdae406152d63c5852f92 and later · before cccd175dd2bfbf8c34a1b0f413760d2ce9ff3ac9affected · git
    • fb8bd90f83c4dd86bc7fdae406152d63c5852f92 and later · before 605a59639abb9cb63cd7676460461fb0b34756b3affected · git
    • fb8bd90f83c4dd86bc7fdae406152d63c5852f92 and later · before 03244b8713d044425db5dbee08037ecd79b684f9affected · git
    • fb8bd90f83c4dd86bc7fdae406152d63c5852f92 and later · before 3a1caa886d41d9bcc9a402906336eda34a90d323affected · git
    • fb8bd90f83c4dd86bc7fdae406152d63c5852f92 and later · before dbad91a31c482063c0a87c90aa83c9001972c6acaffected · git
    • fb8bd90f83c4dd86bc7fdae406152d63c5852f92 and later · before e1c6c10a6a70a69e29b04fcc1ebe4b9bcbc7a49aaffected · git
    • before 4.20not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.11-17.2.11-1

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-2026-99032Oct 23, 2026 · net/smc: protect clcsock lifetime in smc_getname
    31Monitor
  • ← EarlierCVE-2026-99033Oct 23, 2026 · net/packet: guard the ll header push in packet_rcv_spkt()
    0Monitor
  • Later →CVE-2026-99035Oct 23, 2026 · mmc: mtk-sd: Cancel request timeout work on remove
    0Monitor

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 Linux03244b8713d044425db5dbee08037ecd79b684f9Vendor (CNA)
Linux Linux3a1caa886d41d9bcc9a402906336eda34a90d323Vendor (CNA)
Linux Linux4dce8c272417a564bd8c8d2ea88ef901e5447f22Vendor (CNA)
Linux Linux605a59639abb9cb63cd7676460461fb0b34756b3Vendor (CNA)
Linux Linuxa0c7facc0fe9ec772cf8bffac2315a8e1311d39aVendor (CNA)
Linux Linuxcccd175dd2bfbf8c34a1b0f413760d2ce9ff3ac9Vendor (CNA)
Linux Linuxdbad91a31c482063c0a87c90aa83c9001972c6acVendor (CNA)
Linux Linuxe1c6c10a6a70a69e29b04fcc1ebe4b9bcbc7a49aVendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
debian:linux6.12.113-1 · Debian:13Package 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. TodayOct 31, 2026+8 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 (4 more)

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

All records