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NVD / CVE Program· CNA Linux

CVE-2022-50749: acct: fix potential integer overflow in encode_comp_t()

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: 0.28% (FIRST EPSS).
  • Fixed version: Linux Linux 0aac6e60c464a5f942f995428e67f8ae1c422250, 1750a0983c455a9b3badd848471fc8d58cb61f67, 2224897d8187dc22a83e05d9361efcccf67bcf12.

Low priority for now. Upgrade to Linux Linux 0aac6e60c464a5f942f995428e67f8ae1c422250, 1750a0983c455a9b3badd848471fc8d58cb61f67, 2224897d8187dc22a83e05d9361efcccf67bcf12 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: acct: fix potential integer overflow in encode_comp_t() The integer overflow is descripted with following codes: > 317 static comp_t encode_comp_t(u64 value) > 318 { > 319 int exp, rnd; ...... > 341 exp <<= MANTSIZE; > 342 exp += value; > 343 return exp; > 344 } Currently comp_t is defined as type of '__u16', but the variable 'exp' is type of 'int', so overflow would happen when variable 'exp' in line 343 is greater than 65535.

—No exploit Fix available
Published
Dec 24, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 20th 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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  • No public exploit code on record
  • A fix has been released

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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

    • 2.6.12affected
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before e93f995a591c352d35d89c518c54f790e1537754affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before cf60bbca1b83a7e0927e36dbf178328982927886affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 1750a0983c455a9b3badd848471fc8d58cb61f67affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before a815a3e019456c94b03bd183e7ac22fd29e9e6fdaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 6edd0cdee5780fd5f43356b72b29a2a6d48ef6daaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before ebe16676e1dcaa4556ec4d36ca40c82e99e88cfaaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 2224897d8187dc22a83e05d9361efcccf67bcf12affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 0aac6e60c464a5f942f995428e67f8ae1c422250affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before c5f31c655bcc01b6da53b836ac951c1556245305affected · 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
SUSE:Linux Enterprise Live Patching 12 SP5kernel-defaultbefore 4.12.14-122.293.14.12.14-122.293.1
SUSE:Linux Enterprise Live Patching 12 SP5kgraft-patch-SLE12-SP5_Update_77before 1-8.3.11-8.3.1
SUSE:Linux Enterprise Server 12 SP5-LTSSkernel-sourcebefore 4.12.14-122.293.14.12.14-122.293.1
SUSE:Linux Enterprise Server 12 SP5-LTSSkernel-symsbefore 4.12.14-122.293.14.12.14-122.293.1

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-2022-50747Dec 24, 2025 · hfs: Fix OOB Write in hfs_asc2mac
    31Monitor
  • ← EarlierCVE-2022-50748Dec 24, 2025 · ipc: mqueue: fix possible memory leak in init_mqueue_fs()
    0Monitor
  • Later →CVE-2022-50751Dec 24, 2025 · configfs: fix possible memory leak in configfs_create_dir()
    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 Linux0aac6e60c464a5f942f995428e67f8ae1c422250Vendor (CNA)
Linux Linux1750a0983c455a9b3badd848471fc8d58cb61f67Vendor (CNA)
Linux Linux2224897d8187dc22a83e05d9361efcccf67bcf12Vendor (CNA)
Linux Linux6edd0cdee5780fd5f43356b72b29a2a6d48ef6daVendor (CNA)
Linux Linuxa815a3e019456c94b03bd183e7ac22fd29e9e6fdVendor (CNA)
Linux Linuxc5f31c655bcc01b6da53b836ac951c1556245305Vendor (CNA)
Linux Linuxcf60bbca1b83a7e0927e36dbf178328982927886Vendor (CNA)
Linux Linuxe93f995a591c352d35d89c518c54f790e1537754Vendor (CNA)
Linux Linuxebe16676e1dcaa4556ec4d36ca40c82e99e88cfaVendor (CNA)
debian:linux6.1.4-1 · Debian:12Package registry (OSV)
suse:kernel-default4.12.14-122.293.1 · SUSE:Linux Enterprise Live Patching 12 SP5Package registry (OSV)
suse:kernel-source4.12.14-122.293.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)
suse:kernel-syms4.12.14-122.293.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)
suse:kgraft-patch-SLE12-SP5_Update_771-8.3.1 · 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.

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✗ → ✓

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References

Show all references (8 more)

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

All records