7.8

CVE-2025-40118: linux

CVSS: 7.8v3.1HighDeferred
AliasesUBUNTU-CVE-2025-40118DEBIAN-CVE-2025-40118
Published 12-11-2025Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2025-40118 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.4% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.17%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 46 · Related 44
DLA-4379-1DLA-4404-1OPENSUSE-SU-2025:20172-1SUSE-SU-2025:4393-1SUSE-SU-2025:4422-1SUSE-SU-2025:4505-1

Timeline

  1. 12-11-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: pm80xx: Fix array-index-out-of-of-bounds on rmmod Since commit f7b705c238d1 ("scsi: pm80xx: Set phy_attached to zero when device is gone") UBSAN reports: UBSAN: array-index-out-of-bounds in drivers/scsi/pm8001/pm8001_sas.c:786:17 index 28 is out of range for type 'pm8001_phy [16]' on rmmod when using an expander. For a direct attached device, attached_phy contains the local phy id. For a device behind an expander, attached_phy contains the remote phy id, not the local phy id. I.e. while pm8001_ha will have pm8001_ha->chip->n_phy local phys, for a device behind an expander, attached_phy can be much larger than pm8001_ha->chip->n_phy (depending on the amount of phys of the expander). E.g. on my system pm8001_ha has 8 phys with phy ids 0-7. One of the ports has an expander connected. The expander has 31 phys with phy ids 0-30. The pm8001_ha->phy array only contains the phys of the HBA. It does not contain the phys of the expander. Thus, it is wrong to use attached_phy to index the pm8001_ha->phy array for a device behind an expander. Thus, we can only clear phy_attached for devices that are directly attached.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

+0.01 pp

From 0.15% 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

Ubuntu138 products
  • linux< 5.15.0-170.180 | < 6.8.0-106.106 | < 6.17.0-14.14
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1100.107 | < 6.8.0-1050.53 | < 6.17.0-1007.7
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.158-1 | < 6.12.57-1 | < 6.17.6-1
Linux1 product
  • linux≥ 05b512879eab41faa515b67fa3896d0005e97909, < d94be0a6ae9ade706d4270e740bdb4f79953a7fc | ≥ bc2140c8136200b4437e1abc0fb659968cb9baab, < 45acbf154befedd9bc135f5e031fe7855d1e6493 | ≥ 1d8f9378cb4800c18e20d80ecd605b2b93e87a03, < eef5ef400893f8e3dbb09342583be0cdc716d566 | ≥ 30e482dfb8f27d22f518695d4bcb5e7f4c6cb08a, < 9c671d4dbfbfb0d73cfdfb706afb36d9ad60a582 | ≥ a862d24e1fc3ab1b5e5f20878d2898cea346d0ec, < e62251954a128a2d0fcbc19e5fa39e08935bb628 | ≥ 0f9802f174227f553959422f844eeb9ba72467fe, < 9326a1541e1b7ed3efdbab72061b82cf01c6477a | ≥ f7b705c238d1483f0a766e2b20010f176e5c0fb7, < 83ced3c206c292458e47c7fac54223abc7141585 | ≥ f7b705c238d1483f0a766e2b20010f176e5c0fb7, < 251be2f6037fb7ab399f68cd7428ff274133d693 | 722026c010fa75bcf9e2373aff1d7930a3d7e3cf | ≥ 5.4.293, < 5.4.301 | ≥ 5.10.237, < 5.10.246 | ≥ 5.15.181, < 5.15.195 | ≥ 6.1.136, < 6.1.156 | ≥ 6.6.89, < 6.6.112 | ≥ 6.12.26, < 6.12.53 | ≥ 6.14.5, < 6.15 | 6.15

3 vendors · 140 products

References

41 links
Show all 41 references