5.5

CVE-2022-50313: erofs: fix order >= MAX_ORDER warning due to crafted negative i_size

Analyzed
AliasesUBUNTU-CVE-2022-50313DEBIAN-CVE-2022-50313
Published 15-09-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50313 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
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 1
RHSA-2024:2394

Timeline

  1. 15-09-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: erofs: fix order >= MAX_ORDER warning due to crafted negative i_size As syzbot reported [1], the root cause is that i_size field is a signed type, and negative i_size is also less than EROFS_BLKSIZ. As a consequence, it's handled as fast symlink unexpectedly. Let's fall back to the generic path to deal with such unusual i_size. [1] https://lore.kernel.org/r/000000000000ac8efa05e7feaa1f@google.com

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.16% 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: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu116 products
  • linux< 5.4.0-211.231 | < 5.15.0-67.74
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1142.152 | < 5.15.0-1031.35
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 431339ba90423a038914c6032bfd71f0ba7ef2f2, < 17a0cdbd7b0cf0fc0d7ca4187a67f8f1c18c291f | ≥ 431339ba90423a038914c6032bfd71f0ba7ef2f2, < 0ab621fcdff1a58ff4de51a8590fa92a0ecd34be | ≥ 431339ba90423a038914c6032bfd71f0ba7ef2f2, < acc2f40b980c61a9178b72cdedd150b829064997 | ≥ 431339ba90423a038914c6032bfd71f0ba7ef2f2, < b6c8330f5b0f22149957a2e4977fd0f01a9db7cd | ≥ 431339ba90423a038914c6032bfd71f0ba7ef2f2, < 6235fb899b25fd287d5e42635ff82196395708cc | ≥ 431339ba90423a038914c6032bfd71f0ba7ef2f2, < 1dd73601a1cba37a0ed5f89a8662c90191df5873 | 4.19
  • linux_kernel≥ 4.19, < 5.4.289 | ≥ 5.5, < 5.10.233 | ≥ 5.11, < 5.15.82 | ≥ 5.16, < 5.19.17 | ≥ 6.0, < 6.0.3
Debian1 product
  • linux< 6.0.3-1

3 vendors · 119 products

References

10 links