5.5

CVE-2025-38489: s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL again

Analyzed
AliasesUBUNTU-CVE-2025-38489DEBIAN-CVE-2025-38489
Published 28-07-2025Last modified 23-05-2026

Vulnerability summary

CVE-2025-38489 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.9% 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
0.17%
0%100%
Low · +0.02 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 41 · Related 38
DSA-5975-1MGASA-2025-0218MGASA-2025-0219OPENSUSE-SU-2025:20081-1SUSE-SU-2025:02853-1SUSE-SU-2025:02923-1

Timeline

  1. 28-07-2025
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL again Commit 7ded842b356d ("s390/bpf: Fix bpf_plt pointer arithmetic") has accidentally removed the critical piece of commit c730fce7c70c ("s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL"), causing intermittent kernel panics in e.g. perf's on_switch() prog to reappear. Restore the fix and add a comment.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

Increase +0.02 pp

From 0.15% 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.

Ubuntu121 products
  • linux< 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ c3062bdb859b6e2567e7f5c8cde20c0250bb130f, < 0c7b20f7785cfdd59403333612c90b458b12307c | ≥ 7ded842b356d151ece8ac4985940438e6d3998bb, < d5629d1af0600f8cc7c9245e8d832a66358ef889 | ≥ 7ded842b356d151ece8ac4985940438e6d3998bb, < a4f9c7846b1ac428921ce9676b1b8c80ed60093c | ≥ 7ded842b356d151ece8ac4985940438e6d3998bb, < 6a5abf8cf182f577c7ae6c62f14debc9754ec986 | d3d74e45a060d218fe4b0c9174f0a77517509d8e | ≥ 6.6.26, < 6.6.100 | ≥ 6.8.5, < 6.9 | 6.9
  • linux_kernelEOL≥ 6.6.26, < 6.6.100 | ≥ 6.8.5, < 6.9 | ≥ 6.9.1, < 6.12.40 | ≥ 6.13, < 6.15.8 | 6.9 | 6.9:rc2 | 6.9:rc3 | 6.9:rc4 | 6.9:rc5 | 6.9:rc6 | 6.9:rc7 | 6.16:rc1 | 6.16:rc2 | 6.16:rc3 | 6.16:rc4 | 6.16:rc5 | 6.16:rc6
Debian1 product
  • linux< 6.12.41-1 | < 6.16.3-1

3 vendors · 124 products

References

30 links
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