CVE-2026-74602: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-74602DEBIAN-CVE-2026-74602
Published 22-08-2026Last modified 23-08-2026
Open JSON

Vulnerability summary

CVE-2026-74602 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.7% 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
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2026-0506OPENSUSE-SU-2026:22091-1

Timeline

  1. 22-08-2026
    PublishedVulnerability first disclosed.
  2. 23-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Initialise reader page order in rb_allocate_cpu_buffer() In rb_allocate_cpu_buffer(), bpage->order was omitted, leaving it as 0. This is an issue for a ring-buffer with subbufs bigger than PAGE_SIZE if when freed: free_buffer_page() relies on this value. Align the value with the actual allocation size (buffer::subbuf_order).

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

0.00 pp

From 0.17% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.17%

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

Ubuntu142 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)
Debian2 products
  • linux< 6.12.105-1 | < 7.1.9-1
  • linux-6.12< 6.12.107-1~deb12u1
Linux1 product
  • linux≥ f9b94daa542a8d2532f0930f01cd9aec2d19621b, < 7c620d89bae1a926ab7d626600285d3516c9f3c4 | ≥ f9b94daa542a8d2532f0930f01cd9aec2d19621b, < 2e37f2bf111429fbfa4d985b12df3ba496ca70aa | ≥ f9b94daa542a8d2532f0930f01cd9aec2d19621b, < 3b3e0a6ee5bb3ac000f135beef26b2b7ed1a771a | ≥ f9b94daa542a8d2532f0930f01cd9aec2d19621b, < 6d014e44b68ddd43f71288d2a4dbb1a259869149 | 6.8

3 vendors · 145 products

References

8 links