01 Record

CVE-2026-89540

sunrpc: init gssp_lock before publishing proc entry

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

sunrpc: init gssp_lock before publishing proc entry

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 2026-10-19.

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

2026-09-11 19:44Z1 MO AGO

Last updated

2026-10-19 08:48Z10 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-909Missing Initialization of ResourceClass
CWE-416Use After FreeVariant

Data version

5.2

Document digest

4ead932ba56c9a8fd21d77a03d1dc2eefc8e06906c05d29bc60e074280b7bc22

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux030d794bf49855f5e2a9e8dfbfad34211d1eb08b to < 159a4fab7170badd6c4a553aef81cac079d6f4ee, 030d794bf49855f5e2a9e8dfbfad34211d1eb08b to < b3526ae3351968f6726bcbe25d8d09973ad79109, 030d794bf49855f5e2a9e8dfbfad34211d1eb08b to < 7f5bcdc8da15077ebe846c2756a5a17741021410, 030d794bf49855f5e2a9e8dfbfad34211d1eb08b to < 89c8e0733e8c46b7973503f15b1b31a8587d8030, 030d794bf49855f5e2a9e8dfbfad34211d1eb08b to < f15b87521168c2a92cb1931f532cba422f856f01, 030d794bf49855f5e2a9e8dfbfad34211d1eb08b to < edeefb111d6181a4aa278f415b005efe284b9489, 030d794bf49855f5e2a9e8dfbfad34211d1eb08b to < 3f019571928b269feebcff59926ec13294215e0e, 030d794bf49855f5e2a9e8dfbfad34211d1eb08b to < 5ce1ed6159731a41fdd0b03eedbed4e147036a5a, 3.10—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/159a4fab7170badd6c4a553aef81cac079d6f4ee
git.kernel.orghttps://git.kernel.org/stable/c/b3526ae3351968f6726bcbe25d8d09973ad79109
git.kernel.orghttps://git.kernel.org/stable/c/7f5bcdc8da15077ebe846c2756a5a17741021410
git.kernel.orghttps://git.kernel.org/stable/c/89c8e0733e8c46b7973503f15b1b31a8587d8030
git.kernel.orghttps://git.kernel.org/stable/c/f15b87521168c2a92cb1931f532cba422f856f01
git.kernel.orghttps://git.kernel.org/stable/c/edeefb111d6181a4aa278f415b005efe284b9489
git.kernel.orghttps://git.kernel.org/stable/c/3f019571928b269feebcff59926ec13294215e0e
git.kernel.orghttps://git.kernel.org/stable/c/5ce1ed6159731a41fdd0b03eedbed4e147036a5a

07 Fixed in

Debian 12

linux
Fixed in 6.1.190-1
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.