01 Record

CVE-2026-89580

bpf: Disable preemption in __bpf_get_stack

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

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02 Description

bpf: Disable preemption in __bpf_get_stack

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 2.1% 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

Received. NVD last modified this record on 2026-10-21.

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

2026-09-11 19:44Z1 MO AGO

Last updated

2026-10-21 12:47Z7 DAYS AGO

Reserved

2026-09-11

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-787Out-of-bounds WriteBase

Data version

5.2

Document digest

cc5c8203bbee7493f4b626089cb6db59f648b1ea24e1b6093a47d4339c5de4cb

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxc195651e565ae7f41a68acb7d4aa7390ad215de1 to < 719e69421de28829c72bf8a2722ab48a1c5a59ad, c195651e565ae7f41a68acb7d4aa7390ad215de1 to < 8c5ba022f2085ea42d011497a6e92e527d123b9b, c195651e565ae7f41a68acb7d4aa7390ad215de1 to < dbfecc8a6631c0d3626c14ba1f1a485a4498445a, c195651e565ae7f41a68acb7d4aa7390ad215de1 to < 9a23747909fcae707990c8466c381a0e7acfaa4e, c195651e565ae7f41a68acb7d4aa7390ad215de1 to < b1a47b2708d4e95dbd23aee2ec83752190897b3f, 4.18—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/719e69421de28829c72bf8a2722ab48a1c5a59ad
git.kernel.orghttps://git.kernel.org/stable/c/8c5ba022f2085ea42d011497a6e92e527d123b9b
git.kernel.orghttps://git.kernel.org/stable/c/dbfecc8a6631c0d3626c14ba1f1a485a4498445a
git.kernel.orghttps://git.kernel.org/stable/c/9a23747909fcae707990c8466c381a0e7acfaa4e
git.kernel.orghttps://git.kernel.org/stable/c/b1a47b2708d4e95dbd23aee2ec83752190897b3f

07 Fixed in

Debian 12

linux
No fix yet
linux-6.12
Fixed in 6.12.111-1~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.111-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.2.6-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.