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CVE-2022-50640· NVD / CVE Program· CNA Linux

mmc: core: Fix kernel panic when remove non-standard SDIO card

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 1e8cd93ae536581562bab4e1d8c5315bbc2548bf, 1fb79478695d92bab1c120ad3dad05252b02a29d, 66d461a92f32b6995b630625d350259b6b1f961b.

Low priority for now. Upgrade to Linux Linux 1e8cd93ae536581562bab4e1d8c5315bbc2548bf, 1fb79478695d92bab1c120ad3dad05252b02a29d, 66d461a92f32b6995b630625d350259b6b1f961b 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: core: Fix kernel panic when remove non-standard SDIO card SDIO tuple is only allocated for standard SDIO card, especially it causes memory corruption issues when the non-standard SDIO card has removed, which is because the card device's reference counter does not increase for it at sdio_init_func(), but all SDIO card device reference counter gets decreased at sdio_release_func().

—No exploit Fix available
Published
Dec 8, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 10th 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

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

Follow CVE-2022-50640

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.

—

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

    • 2.6.36affected
    • 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 and later · before b8b2965932e702b21e335ff30e1bb550f5a23b6faffected · git
    • 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 and later · before b3275dde570b6420106a715bb58a0af041b94d95affected · git
    • 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 and later · before 1fb79478695d92bab1c120ad3dad05252b02a29daffected · git
    • 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 and later · before 7a09c64b7da0abdec3919812e3d93ecc44069ed0affected · git
    • 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 and later · before 8bf037279b5869ae9331c42bb1527d2680ebba96affected · git
    • 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 and later · before 1e8cd93ae536581562bab4e1d8c5315bbc2548bfaffected · git
    • 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 and later · before 66d461a92f32b6995b630625d350259b6b1f961baffected · git
    • 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 and later · before 9972e6b404884adae9eec7463e30d9b3c9a70b18affected · git
    • before 2.6.36not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.7-16.0.7-1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-64kbbefore 5.14.21-150500.55.133.15.14.21-150500.55.133.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-docsbefore 5.14.21-150500.55.133.15.14.21-150500.55.133.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-obs-buildbefore 5.14.21-150500.55.133.15.14.21-150500.55.133.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-symsbefore 5.14.21-150500.55.133.15.14.21-150500.55.133.1
SUSE:Linux Enterprise Live Patching 12 SP5kernel-defaultbefore 4.12.14-122.290.14.12.14-122.290.1
SUSE:Linux Enterprise Live Patching 12 SP5kgraft-patch-SLE12-SP5_Update_76before 1-8.7.11-8.7.1
SUSE:Linux Enterprise Live Patching 15 SP5kernel-livepatch-SLE15-SP5_Update_34before 1-150500.11.3.11-150500.11.3.1
SUSE:Linux Enterprise Micro 5.2kernel-defaultbefore 5.3.18-150300.59.232.15.3.18-150300.59.232.1
SUSE:Linux Enterprise Micro 5.2kernel-default-basebefore 5.3.18-150300.59.232.1.150300.18.138.15.3.18-150300.59.232.1.150300.18.138.1
SUSE:Linux Enterprise Micro 5.2kernel-rtbefore 5.3.18-150300.232.15.3.18-150300.232.1
SUSE:Linux Enterprise Micro 5.2kernel-source-rtbefore 5.3.18-150300.232.15.3.18-150300.232.1
SUSE:Linux Enterprise Micro 5.3kernel-rtbefore 5.14.21-150400.15.142.15.14.21-150400.15.142.1
SUSE:Linux Enterprise Micro 5.3kernel-source-rtbefore 5.14.21-150400.15.142.15.14.21-150400.15.142.1
SUSE:Linux Enterprise Micro 5.5kernel-defaultbefore 5.14.21-150500.55.133.15.14.21-150500.55.133.1
SUSE:Linux Enterprise Micro 5.5kernel-default-basebefore 5.14.21-150500.55.133.1.150500.6.65.15.14.21-150500.55.133.1.150500.6.65.1
SUSE:Linux Enterprise Micro 5.5kernel-rtbefore 5.14.21-150500.13.118.15.14.21-150500.13.118.1
SUSE:Linux Enterprise Micro 5.5kernel-sourcebefore 5.14.21-150500.55.133.15.14.21-150500.55.133.1
SUSE:Linux Enterprise Micro 5.5kernel-source-rtbefore 5.14.21-150500.13.118.15.14.21-150500.13.118.1
SUSE:Linux Enterprise Server 12 SP5-LTSSkernel-sourcebefore 4.12.14-122.290.14.12.14-122.290.1
SUSE:Linux Enterprise Server 12 SP5-LTSSkernel-symsbefore 4.12.14-122.290.14.12.14-122.290.1
SUSE:Linux Enterprise Server 15 SP5-LTSSkernel-zfcpdumpbefore 5.14.21-150500.55.133.15.14.21-150500.55.133.1

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-2022-50638Dec 8, 2025 · ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
    0Monitor
  • ← EarlierCVE-2022-50639Dec 8, 2025 · io-wq: Fix memory leak in worker creation
    0Monitor
  • Later →CVE-2022-50641Dec 8, 2025 · HSI: omap_ssi: Fix refcount leak in ssi_probe
    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 Linux1e8cd93ae536581562bab4e1d8c5315bbc2548bfVendor (CNA)
Linux Linux1fb79478695d92bab1c120ad3dad05252b02a29dVendor (CNA)
Linux Linux66d461a92f32b6995b630625d350259b6b1f961bVendor (CNA)
Linux Linux7a09c64b7da0abdec3919812e3d93ecc44069ed0Vendor (CNA)
Linux Linux8bf037279b5869ae9331c42bb1527d2680ebba96Vendor (CNA)
Linux Linux9972e6b404884adae9eec7463e30d9b3c9a70b18Vendor (CNA)
Linux Linuxb3275dde570b6420106a715bb58a0af041b94d95Vendor (CNA)
Linux Linuxb8b2965932e702b21e335ff30e1bb550f5a23b6fVendor (CNA)
debian:linux6.0.7-1 · Debian:12Package registry (OSV)
suse:kernel-64kb5.14.21-150500.55.133.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSPackage registry (OSV)
suse:kernel-default4.12.14-122.290.1 · SUSE:Linux Enterprise Live Patching 12 SP5Package registry (OSV)
suse:kernel-default-base5.14.21-150500.55.133.1.150500.6.65.1 · SUSE:Linux Enterprise Micro 5.5Package registry (OSV)
suse:kernel-docs5.14.21-150500.55.133.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSPackage registry (OSV)
suse:kernel-livepatch-SLE15-SP5_Update_341-150500.11.3.1 · SUSE:Linux Enterprise Live Patching 15 SP5Package registry (OSV)
suse:kernel-obs-build5.14.21-150500.55.133.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSPackage registry (OSV)
suse:kernel-rt5.14.21-150500.13.118.1 · SUSE:Linux Enterprise Micro 5.5Package registry (OSV)
suse:kernel-source4.12.14-122.290.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)
suse:kernel-source-rt5.14.21-150500.13.118.1 · SUSE:Linux Enterprise Micro 5.5Package registry (OSV)
suse:kernel-syms4.12.14-122.290.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)
suse:kernel-zfcpdump5.14.21-150500.55.133.1 · SUSE:Linux Enterprise Server 15 SP5-LTSSPackage registry (OSV)
suse:kgraft-patch-SLE12-SP5_Update_761-8.7.1 · SUSE:Linux Enterprise Live Patching 12 SP5Package 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.

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).

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. 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