01 Record

CVE-2026-53385

vc_screen: fix null-ptr-deref in vcs_notifier() during concurrent vcs_write

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

vc_screen: fix null-ptr-deref in vcs_notifier() during concurrent vcs_write

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: Equal to or higher than the score of 2.2% of scored records. A rank, not a probability.
NVD base score: 5.5 (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:N/I:N/A:H
NVD analysis status: Analyzed. NVD last modified this record on 2026-08-17.
Red Hat severity: Low. 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: 2026-07-19 11:59Z3 MO AGO
Last updated: 2026-08-17 04:50Z2 MO AGO
Reserved: 2026-06-09
Assigning CNA: Linux
Record state: PUBLISHED
Severity: Not rated by the issuing CNA
CNA CVSS vector: Not published by the issuing CNA
Weaknesses: No CWE assigned
Data version: 5.2
Document digest: 5ab760e1698e878e4812f4de012a6a5a8873acefbe768b7c6ac8e993cffeeecf

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux11dddfbb7a4e62489b01074d6c04d9d1b42e4047 to < 43a6281790273c1b0a9ab76609ff0245b968f1e6, e3d1adcad5b73c7ed0c7edb35ab68abcaa45cf67 to < b6bbb85cf45bf0b070e741997fe0af3a772c5ad5, 3338d0b9acde770ee588eead5cac32c25e7048fc to < ff4806202749a51938236214adc0281481a57366, 8fb9ea65c9d1338b0d2bb0a9122dc942cdd32357 to < 8232fca738011ca2ec865b46ec721d1796dc0580, 8fb9ea65c9d1338b0d2bb0a9122dc942cdd32357 to < 73049768ad57145acd337102c5aa3c788e6642c8, 8fb9ea65c9d1338b0d2bb0a9122dc942cdd32357 to < 7cc3dd79777f6ae4625ec37e84dd18a26dc88bde, 8fb9ea65c9d1338b0d2bb0a9122dc942cdd32357 to < 74be188eb2dc1c99d63986167b9a67d415fe7326, 8fb9ea65c9d1338b0d2bb0a9122dc942cdd32357 to < 09a43e81279b8da15526da09877134b8bcf618b0, 8fb9ea65c9d1338b0d2bb0a9122dc942cdd32357 to < a287620312dc6dcb9a093417a0e589bf30fcf38a, 934de9a9b659785fed3e820bc0c813a460c71fea, 0deff678157333d775af190f84696336cdcccd6d, a4e3c4c65ae8510e01352c9a4347e05c035b2ce2, 1de42e7653d6714a7507ba6696151a1fa028c69f, 5.10.181 to < 5.10.260, 5.15.113 to < 5.15.211, 6.1.30 to < 6.1.177, 4.14.327 to < 4.15, 4.19.284 to < 4.20, 5.4.244 to < 5.5, 6.3.4 to < 6.4, 6.4—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/43a6281790273c1b0a9ab76609ff0245b968f1e6
git.kernel.orghttps://git.kernel.org/stable/c/b6bbb85cf45bf0b070e741997fe0af3a772c5ad5
git.kernel.orghttps://git.kernel.org/stable/c/ff4806202749a51938236214adc0281481a57366
git.kernel.orghttps://git.kernel.org/stable/c/8232fca738011ca2ec865b46ec721d1796dc0580
git.kernel.orghttps://git.kernel.org/stable/c/73049768ad57145acd337102c5aa3c788e6642c8
git.kernel.orghttps://git.kernel.org/stable/c/7cc3dd79777f6ae4625ec37e84dd18a26dc88bde
git.kernel.orghttps://git.kernel.org/stable/c/74be188eb2dc1c99d63986167b9a67d415fe7326
git.kernel.orghttps://git.kernel.org/stable/c/09a43e81279b8da15526da09877134b8bcf618b0
git.kernel.orghttps://git.kernel.org/stable/c/a287620312dc6dcb9a093417a0e589bf30fcf38a

07 Fixed in

Debian 12

linux
Fixed in 6.1.177-1

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

Debian 13

linux
Fixed in 6.12.95-1

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

Debian 14

linux
Fixed in 7.0.14-1

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