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NVD / CVE Program· CNA Linux

CVE-2022-50566: mtd: Fix device name leak when register device failed in add_mtd_device()

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: 0.24% (FIRST EPSS).
  • Fixed version: Linux Linux 1b172fb05d6315ecec082fd7544a3390e96f0d7e, 2302e2dc42b1f84f951c725ce742fc21c5a1e151, 330bc5533e8a8ed69cb951d5a8edce9bddb9db21.

Low priority for now. Upgrade to Linux Linux 1b172fb05d6315ecec082fd7544a3390e96f0d7e, 2302e2dc42b1f84f951c725ce742fc21c5a1e151, 330bc5533e8a8ed69cb951d5a8edce9bddb9db21 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: mtd: Fix device name leak when register device failed in add_mtd_device() There is a kmemleak when register device failed: unreferenced object 0xffff888101aab550 (size 8): comm "insmod", pid 3922, jiffies 4295277753 (age 925.408s) hex dump (first 8 bytes): 6d 74 64 30 00 88 ff ff mtd0.... backtrace: [<00000000bde26724>] __kmalloc_node_track_caller+0x4e/0x150 [<000000003c32b416>] kvasprintf+0xb0/0x130 [<000000001f7a8f15>] kobject_set_name_vargs+0x2f/0xb0 [<000000006e781163>] dev_set_name+0xab/0xe0 [<00000000e30d0c78>] add_mtd_device+0x4bb/0x700 [<00000000f3d34de7>] mtd_device_parse_register+0x2ac/0x3f0 [<00000000c0d88488>] 0xffffffffa0238457 [<00000000b40d0922>] 0xffffffffa02a008f [<0000000023d17b9d>] do_one_initcall+0x87/0x2a0 [<00000000770f6ca6>] do_init_module+0xdf/0x320 [<000000007b6768fe>] load_module+0x2f98/0x3330 [<00000000346bed5a>] __do_sys_finit_module+0x113/0x1b0 [<00000000674c2290>] do_syscall_64+0x35/0x80 [<000000004c6a8d97>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 If register device failed, should call put_device() to give up the reference.

—No exploit Fix available
Published
Oct 22, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 16th 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%

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Noroxi analysis

What does it mean in your environment?

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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

    • 2.6.30affected
    • 1f24b5a8ecbb2a3c7080f418974d40e3ffedb221 and later · before a75f45afa932bfb24a2603ebcea5efd2e7cdcfd6affected · git
    • 1f24b5a8ecbb2a3c7080f418974d40e3ffedb221 and later · before 2302e2dc42b1f84f951c725ce742fc21c5a1e151affected · git
    • 1f24b5a8ecbb2a3c7080f418974d40e3ffedb221 and later · before db07fe76df01f40cb897d6e9066b84e46957beb3affected · git
    • 1f24b5a8ecbb2a3c7080f418974d40e3ffedb221 and later · before fa0d32ab8407d7481450c664fd0de64f2dae9489affected · git
    • 1f24b5a8ecbb2a3c7080f418974d40e3ffedb221 and later · before 330bc5533e8a8ed69cb951d5a8edce9bddb9db21affected · git
    • 1f24b5a8ecbb2a3c7080f418974d40e3ffedb221 and later · before 71212d73184845c944ef1b43f092e643e5bde003affected · git
    • 1f24b5a8ecbb2a3c7080f418974d40e3ffedb221 and later · before 1b172fb05d6315ecec082fd7544a3390e96f0d7eaffected · git
    • 1f24b5a8ecbb2a3c7080f418974d40e3ffedb221 and later · before bcabe1dc2a344adbb3382930a23e273ba9382277affected · git
    • 1f24b5a8ecbb2a3c7080f418974d40e3ffedb221 and later · before 895d68a39481a75c680aa421546931fb11942fa6affected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.4-16.1.4-1

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-2022-50564Oct 22, 2025 · s390/netiucv: Fix return type of netiucv_tx()
    0Monitor
  • ← EarlierCVE-2022-50565Oct 22, 2025 · wifi: plfxlc: fix potential memory leak in __lf_x_usb_enable_rx()
    0Monitor
  • Later →CVE-2022-50567Oct 22, 2025 · fs: jfs: fix shift-out-of-bounds in dbAllocAG
    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 Linux1b172fb05d6315ecec082fd7544a3390e96f0d7eVendor (CNA)
Linux Linux2302e2dc42b1f84f951c725ce742fc21c5a1e151Vendor (CNA)
Linux Linux330bc5533e8a8ed69cb951d5a8edce9bddb9db21Vendor (CNA)
Linux Linux71212d73184845c944ef1b43f092e643e5bde003Vendor (CNA)
Linux Linux895d68a39481a75c680aa421546931fb11942fa6Vendor (CNA)
Linux Linuxa75f45afa932bfb24a2603ebcea5efd2e7cdcfd6Vendor (CNA)
Linux Linuxbcabe1dc2a344adbb3382930a23e273ba9382277Vendor (CNA)
Linux Linuxdb07fe76df01f40cb897d6e9066b84e46957beb3Vendor (CNA)
Linux Linuxfa0d32ab8407d7481450c664fd0de64f2dae9489Vendor (CNA)
debian:linux6.1.4-1 · 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

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 (8 more)

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

All records