7.8

CVE-2026-64058: netfs: Fix netfs_read_folio() to wait on writeback

Modified
AliasesUBUNTU-CVE-2026-64058DEBIAN-CVE-2026-64058
Published 19-07-2026Last modified 14-09-2026

Vulnerability summary

CVE-2026-64058 is a high (CVSS 7.8) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.13%
0%100%
Low · -0.05 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 13 · Related 13
OPENSUSE-SU-2026:22167-1SUSE-SU-2026:24386-1SUSE-SU-2026:24422-1SUSE-SU-2026:24437-1SUSE-SU-2026:24446-1USN-8593-1

Timeline

  1. 19-07-2026
    PublishedVulnerability first disclosed.
  2. 14-09-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfs_read_folio() to wait on writeback Fix netfs_read_folio() to wait for an ongoing writeback to complete so that it can trust the dirty flag and whatever is attached to folio->private (folio->private may get cleaned up by the collector before it clears the writeback flag).

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

Decrease -0.05 pp

From 0.18% 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

Affected systems

Version check

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

Ubuntu118 products
  • linux< 7.0.0-28.28
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 7.0.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.12.111-1 | < 7.0.12-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux2 products
  • linux≥ ee4cdf7ba857a894ad1650d6ab77669cbbfa329e, < 090a8aa1894b72f5b3fc18dee68d42ad45f4a2c6 | ≥ ee4cdf7ba857a894ad1650d6ab77669cbbfa329e, < f17b9121bb99f88188ec9be2db5da1d561f4c01b | ≥ ee4cdf7ba857a894ad1650d6ab77669cbbfa329e, < b8271cccdd5e43cc8d738afb8b51f6ad05b1cb4b | ≥ ee4cdf7ba857a894ad1650d6ab77669cbbfa329e, < ded0c6f1606061148c202825f7e53d711f9f84cf | 6.12
  • linux_kernel≥ 6.12, < 6.18.34 | ≥ 6.19, < 7.0.11 | 7.1:rc1 | 7.1:rc2 | 7.1:rc3 | 7.1:rc4

3 vendors · 122 products

References

16 links
Show all 16 references