01 Record

CVE-2026-64374

sched/rt: Have RT_PUSH_IPI be default off for non PREEMPT_RT

HighPUBLISHEDCNA: Linux

CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

View raw JSON

02 Description

sched/rt: Have RT_PUSH_IPI be default off for non PREEMPT_RT

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.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpactpartialSuccessful exploitation gives limited 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

0.38% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 32.4% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-10-19.

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

2026-07-25 08:50Z3 MO AGO

Last updated

2026-10-19 20:38Z9 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base
CWE-667Improper LockingClass

Data version

5.2

Document digest

c918da5e498a5d25b9e4351e2ee6a3661a8d44debe444b0cf0446269551fb6f5

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxb6366f048e0caff28af5335b7af2031266e1b06b to < b99f04ae3d200d2f8844aa29145bd18eccbeecde, b6366f048e0caff28af5335b7af2031266e1b06b to < d8312a56d9a162e3ec76476aa487e7d20bc602e9, b6366f048e0caff28af5335b7af2031266e1b06b to < 44aae426dbfd51286f7eb601cfa14bc32164812a, b6366f048e0caff28af5335b7af2031266e1b06b to < 860aaff72c8446fed5e576249e19952883a18885, b6366f048e0caff28af5335b7af2031266e1b06b to < 89237c8fc15d8016a194076e648ccb57d75e65ae, b6366f048e0caff28af5335b7af2031266e1b06b to < 4bd0da48fbc1dbef6774175129107fbbdd353e26, b6366f048e0caff28af5335b7af2031266e1b06b to < a18f80bf5359238c4f067d691b96af00286fdd89, b6366f048e0caff28af5335b7af2031266e1b06b to < dd29c017aed628076e915fe4cdfb5392fd4c5cab, 4.1—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/b99f04ae3d200d2f8844aa29145bd18eccbeecde
git.kernel.orghttps://git.kernel.org/stable/c/d8312a56d9a162e3ec76476aa487e7d20bc602e9
git.kernel.orghttps://git.kernel.org/stable/c/44aae426dbfd51286f7eb601cfa14bc32164812a
git.kernel.orghttps://git.kernel.org/stable/c/860aaff72c8446fed5e576249e19952883a18885
git.kernel.orghttps://git.kernel.org/stable/c/89237c8fc15d8016a194076e648ccb57d75e65ae
git.kernel.orghttps://git.kernel.org/stable/c/4bd0da48fbc1dbef6774175129107fbbdd353e26
git.kernel.orghttps://git.kernel.org/stable/c/a18f80bf5359238c4f067d691b96af00286fdd89
git.kernel.orghttps://git.kernel.org/stable/c/dd29c017aed628076e915fe4cdfb5392fd4c5cab

07 Fixed in

Debian 12

linux
Fixed in 6.1.180-1
linux-6.12
Fixed in 6.12.100-1~deb12u1

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

Debian 13

linux
Fixed in 6.12.96-1

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

Debian 14

linux
Fixed in 7.1.4-1

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