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

Deferred
AliasesUBUNTU-CVE-2022-50749DEBIAN-CVE-2022-50749
Published 24-12-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50749 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20.9% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.28%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 5
SUSE-SU-2026:0263-1SUSE-SU-2026:0317-1SUSE-SU-2026:0411-1SUSE-SU-2026:0473-1SUSE-SU-2026:0617-1

Timeline

  1. 24-12-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.28% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Ubuntu122 products
  • linuxAll versions (No fix recorded) | < 4.15.0-208.220 | < 5.4.0-144.161 | < 5.15.0-69.76
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1153.166 | < 5.4.0-1097.105 | < 5.15.0-1033.37
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.4-1
Linux1 product
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < e93f995a591c352d35d89c518c54f790e1537754 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < cf60bbca1b83a7e0927e36dbf178328982927886 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 1750a0983c455a9b3badd848471fc8d58cb61f67 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a815a3e019456c94b03bd183e7ac22fd29e9e6fd | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 6edd0cdee5780fd5f43356b72b29a2a6d48ef6da | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < ebe16676e1dcaa4556ec4d36ca40c82e99e88cfa | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 2224897d8187dc22a83e05d9361efcccf67bcf12 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 0aac6e60c464a5f942f995428e67f8ae1c422250 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < c5f31c655bcc01b6da53b836ac951c1556245305 | 2.6.12

3 vendors · 124 products

References

12 links
Show all 12 references