CVE-2026-97534: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-97534DEBIAN-CVE-2026-97534
Published 25-09-2026Last modified 21-10-2026
Open JSON

Vulnerability summary

CVE-2026-97534 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.3% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.20%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:12074-1

Timeline

  1. 25-09-2026
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: accurately adjust free_sections during free_segment_range In free_segment_range(), MAIN_SECS(sbi) is temporarily reduced by `secs` to restrict block allocation to the safe remaining main area while valid blocks in the truncated range are evacuated by GC. However, FREE_I(sbi)->free_sections tracks the total number of free sections across the whole filesystem. If any sections within the truncated range were already free upon entering free_segment_range(), failing to deduct them from free_sections causes the filesystem to overestimate available free sections in the active, reduced main area. This leads to inconsistent free section accounting during GC data migration and can trigger unexpected allocation failures or assertion errors when space is tight. Fix this by calculating the number of already-free sections in the truncated range, deducting them from free_sections upon entering free_segment_range(), and restoring them on exit.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

26-09-202621-10-2026
EPSS score
0.20%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu157 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.12.113-1 | < 7.2.7-1
Linux1 product
  • linux≥ b4b10061ef98c583bcf82a4200703fbaa98c18dc, < 64a7ed42e9766886dd7300597d90366dfb7a1e53 | ≥ b4b10061ef98c583bcf82a4200703fbaa98c18dc, < faeb0a20bdd113311519b598dcc075af3b6fb366 | ≥ b4b10061ef98c583bcf82a4200703fbaa98c18dc, < ca31116fad0954c61a0d38163cc51c48e4981b75 | ≥ b4b10061ef98c583bcf82a4200703fbaa98c18dc, < 8a123a10770d2132d046748f20f02baa8d5539a1 | ≥ b4b10061ef98c583bcf82a4200703fbaa98c18dc, < 8c963d1738fdca400082ff5f9d99e083de4f4e70 | 5.8

3 vendors · 159 products

References

8 links