01 Record

CVE-2026-31507

net/smc: fix double-free of smc_spd_priv when tee() duplicates splice pipe buffer

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

net/smc: fix double-free of smc_spd_priv when tee() duplicates splice pipe buffer

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.13% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 3.1% of scored records. A rank, not a probability.
NVD base score: 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-07-14.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-04-22 13:54Z4 MO AGO

Last updated

2026-08-05 12:23Z1 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-415Double FreeVariant
CWE-911Improper Update of Reference CountBase

Data version

5.2

Document digest

7f9818ff87337cb9e35cf721a740147bc0834cdcb017bb27771230e26602a0f3

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to < 7e8916f46c2f48607f907fd401590093753a6bc5, 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to < ae5575e660410c8d2c5d38fb28a0f37aea945676, 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to < 98ba5cb274768146e25ffbfde47753652c1c20d3, 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to < 81acbd345d405994875d419d43b319fee0b9ad62, 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to < 7bcb974c771c863e8588cea0012ac204443a7126, 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to < 54c87a730157868543ebdfa0ecb21b4590ed23a5, 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to < 3cc76380fea749280c026f410af56a28aaac388a, 9014db202cb764b8e14c53e7bacc81f9a1a2ba7f to < 24dd586bb4cbba1889a50abe74143817a095c1c9, 4.18—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/7e8916f46c2f48607f907fd401590093753a6bc5
git.kernel.orghttps://git.kernel.org/stable/c/ae5575e660410c8d2c5d38fb28a0f37aea945676
git.kernel.orghttps://git.kernel.org/stable/c/98ba5cb274768146e25ffbfde47753652c1c20d3
git.kernel.orghttps://git.kernel.org/stable/c/81acbd345d405994875d419d43b319fee0b9ad62
git.kernel.orghttps://git.kernel.org/stable/c/7bcb974c771c863e8588cea0012ac204443a7126
git.kernel.orghttps://git.kernel.org/stable/c/54c87a730157868543ebdfa0ecb21b4590ed23a5
git.kernel.orghttps://git.kernel.org/stable/c/3cc76380fea749280c026f410af56a28aaac388a
git.kernel.orghttps://git.kernel.org/stable/c/24dd586bb4cbba1889a50abe74143817a095c1c9
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html

01 Record index

CVE-2026-31507

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-31507

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References