PT-2026-43748 · Linux+3 · Linux+129

Published 2026-05-27 · Updated 2026-05-29 · CVE-2026-45881

Positive Technologies (AI Summary)

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A memory leak occurs in the svs enable debug write() function. The buf variable, which is allocated by memdup user nul(), is not properly released if the kstrtoint() function fails.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2026-45881

Affected Products

Linux

Linux-Allwinner-5.19

Linux-Aws

Linux-Aws-5.0

Linux-Aws-5.11

Linux-Aws-5.13

Linux-Aws-5.19

Linux-Aws-5.3

Linux-Aws-5.8

Linux-Aws-6.14

Linux-Aws-6.17

Linux-Aws-6.2

Linux-Aws-6.5

Linux-Aws-6.8

Linux-Aws-Fips

Linux-Azure

Linux-Azure-5.11

Linux-Azure-5.13

Linux-Azure-5.19

Linux-Azure-5.3

Linux-Azure-5.8

Linux-Azure-6.11

Linux-Azure-6.14

Linux-Azure-6.17

Linux-Azure-6.2

Linux-Azure-6.5

Linux-Azure-6.8

Linux-Azure-Edge

Linux-Azure-Fde

Linux-Azure-Fde-5.19

Linux-Azure-Fde-6.14

Linux-Azure-Fde-6.17

Linux-Azure-Fde-6.2

Linux-Azure-Fde-6.8

Linux-Azure-Fips

Linux-Azure-Nvidia

Linux-Azure-Nvidia-6.14

Linux-Bluefield

Linux-Fips

Linux-Gcp

Linux-Gcp-5.11

Linux-Gcp-5.13

Linux-Gcp-5.19

Linux-Gcp-5.3

Linux-Gcp-5.8

Linux-Gcp-6.11

Linux-Gcp-6.14

Linux-Gcp-6.17

Linux-Gcp-6.2

Linux-Gcp-6.5

Linux-Gcp-6.8

Linux-Gcp-Fips

Linux-Gke

Linux-Gke-4.15

Linux-Gkeop-5.15

Linux-Gke-5.4

Linux-Gkeop

Linux-Hwe

Linux-Hwe-5.11

Linux-Hwe-5.13

Linux-Hwe-5.19

Linux-Hwe-5.8

Linux-Hwe-6.11

Linux-Hwe-6.14

Linux-Hwe-6.17

Linux-Hwe-6.2

Linux-Hwe-6.5

Linux-Hwe-6.8

Linux-Hwe-Edge

Linux-Ibm

Linux-Ibm-6.8

Linux-Intel-5.13

Linux-Intel-Iot-Realtime

Linux-Lowlatency

Linux-Lowlatency-Hwe-5.19

Linux-Lowlatency-Hwe-6.11

Linux-Lowlatency-Hwe-6.2

Linux-Lowlatency-Hwe-6.5

Linux-Lowlatency-Hwe-6.8

Linux-Lts

Linux-Nvidia

Linux-Nvidia-6.11

Linux-Nvidia-6.17

Linux-Nvidia-6.2

Linux-Nvidia-6.5

Linux-Nvidia-6.8

Linux-Nvidia-Lowlatency

Linux-Nvidia-Tegra

Linux-Oem

Linux-Oem-5.10

Linux-Oem-5.13

Linux-Oem-5.14

Linux-Oem-5.17

Linux-Oem-5.6

Linux-Oem-6.0

Linux-Oem-6.1

Linux-Oem-6.11

Linux-Oem-6.14

Linux-Oem-6.17

Linux-Oem-6.5

Linux-Oem-6.8

Linux-Oracle

Linux-Oracle-5.0

Linux-Oracle-5.11

Linux-Oracle-5.13

Linux-Oracle-5.3

Linux-Oracle-5.8

Linux-Oracle-6.14

Linux-Oracle-6.17

Linux-Oracle-6.5

Linux-Oracle-6.8

Linux-Raspi

Linux-Raspi-Realtime

Linux-Raspi2

Linux-Realtime

Linux-Realtime-6.14

Linux-Realtime-6.17

Linux-Realtime-6.8

Linux-Riscv

Linux-Riscv-5.11

Linux-Riscv-5.19

Linux-Riscv-5.8

Linux-Riscv-6.14

Linux-Riscv-6.17

Linux-Riscv-6.5

Linux-Riscv-6.8

Linux-Starfive-5.19

Linux-Starfive-6.2

Linux-Starfive-6.5

Linux-Xilinx

References · 15

• https://osv.dev/vulnerability/UBUNTU-CVE-2026-45881 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-45881 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-45881 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-45881 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-45881 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-45881 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-45881 · Vendor Advisory
• https://docs.bell-sw.com/security/cves/CVE-2026-45881 · Note
• https://git.kernel.org/stable/c/0f6498077faa9cd89bb787bcc57063494a6f0601 · Note
• https://git.kernel.org/stable/c/47a3e372f7d68776adb749a27c0ec9058ff1b4fd · Note
• https://git.kernel.org/stable/c/6259094ee806fb813ca95894c65fb80e2ec98bf1 · Note
• https://git.kernel.org/stable/c/6bb10466e0884b4a68d4a1f3f4bb87eeb471c18a · Note
• https://git.kernel.org/stable/c/06195456c4e4de3826c4ca60eca941c472f991d0 · Note
• https://git.kernel.org/linus/6259094ee806fb813ca95894c65fb80e2ec98bf1 · Note
• https://git.kernel.org/stable/c/a58c97828911c0b6e25d6b556789da974003efda · Note