CVE-2025-40118

scsi: pm80xx: Fix array-index-out-of-of-bounds on rmmod

HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.16 % · centile 6 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Deferred

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.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected 05b512879eab41faa515b67fa3896d0005e97909 < d94be0a6ae9ade706d4270e740bdb4f79953a7fc ; affected bc2140c8136200b4437e1abc0fb659968cb9baab < 45acbf154befedd9bc135f5e031fe7855d1e6493 ; affected 1d8f9378cb4800c18e20d80ecd605b2b93e87a03 < eef5ef400893f8e3dbb09342583be0cdc716d566 ; affected 30e482dfb8f27d22f518695d4bcb5e7f4c6cb08a < 9c671d4dbfbfb0d73cfdfb706afb36d9ad60a582 ; affected a862d24e1fc3ab1b5e5f20878d2898cea346d0ec < e62251954a128a2d0fcbc19e5fa39e08935bb628 ; affected 0f9802f174227f553959422f844eeb9ba72467fe < 9326a1541e1b7ed3efdbab72061b82cf01c6477a
Linux · Linuxaffected 6.15 ; unaffected 0 < 6.15 ; unaffected 5.4.301 ≤ 5.4.* ; unaffected 5.10.246 ≤ 5.10.* ; unaffected 5.15.195 ≤ 5.15.* ; unaffected 6.1.156 ≤ 6.1.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD