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Fencer Vulns
high 7.8

CVE-2025-37803 json

udmabuf: fix a buf size overflow issue during udmabuf creation

published 2025-05-08 18 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-13992

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

udmabuf: fix a buf size overflow issue during udmabuf creation

by casting size_limit_mb to u64 when calculate pglimit.

Patch / fix

  • Linux Linux 5.4.293, 5.10.237, 5.15.181, 6.1.136, 6.6.89, 6.12.57, 6.14.5, 6.15
  • linux Debian 12 6.1.137-1
  • linux Debian 13 6.12.57-1
  • linux Debian 14 6.16.3-1

debian advisories DEBIAN-CVE-2025-37803

  • linux Ubuntu 22.04 LTS 5.15.0-144.157
  • linux Ubuntu 24.04 LTS 6.8.0-100.100
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1088.95
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1046.49
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1087.96
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1047.50
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1085.91
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1043.48

ubuntu advisories UBUNTU-CVE-2025-37803

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 10.0 6.12.0-55.31.1.el10_0
  • rv RHEL 10.0 6.12.0-55.31.1.el10_0
  • perf RHEL 10.0 6.12.0-55.31.1.el10_0
  • rtla RHEL 10.0 6.12.0-55.31.1.el10_0
  • libperf RHEL 10.0 6.12.0-55.31.1.el10_0
  • kernel-rt RHEL 10.0 6.12.0-55.31.1.el10_0
  • kernel-64k RHEL 10.0 6.12.0-55.31.1.el10_0
  • kernel-core RHEL 10.0 6.12.0-55.31.1.el10_0

red hat advisories RHSA-2025:15447RHSA-2025:15429RHSA-2025:11810RHSA-2025:11571RHSA-2025:11572

  • dtb-aarch64 openSUSE Leap 15.6 6.4.0-150600.23.53.1
  • kernel-64kb SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 6.4.0-150600.23.53.1
  • kernel-syms SLE Module for Development Tools 15 SP6, openSUSE Leap 15.6 6.4.0-150600.23.53.1
  • kernel-obs-qa openSUSE Leap 15.6 6.4.0-150600.23.53.1
  • kernel-source SLE Module for Development Tools 15 SP6, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 6.4.0-150600.23.53.1
  • kernel-default SLE Workstation Extension 15 SP6, SLE Module for Legacy 15 SP6, SLE Module for Basesystem 15 SP6 +3 more 6.4.0-150600.23.53.1
  • kernel-kvmsmall openSUSE Leap 15.6 6.4.0-150600.23.53.1
  • kernel-zfcpdump SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 6.4.0-150600.23.53.1

suse advisories SUSE-SU-2025:02000-1SUSE-SU-2025:01972-1SUSE-SU-2025:20413-1SUSE-SU-2025:01967-1SUSE-SU-2025:01965-1SUSE-SU-2025:01964-1

  • kernel AlmaLinux 9 5.14.0-570.41.1.el9_6
  • rv AlmaLinux 9 5.14.0-570.41.1.el9_6
  • perf AlmaLinux 9 5.14.0-570.41.1.el9_6
  • rtla AlmaLinux 9 5.14.0-570.41.1.el9_6
  • libperf AlmaLinux 9 5.14.0-570.41.1.el9_6
  • kernel-rt AlmaLinux 9 5.14.0-570.41.1.el9_6
  • kernel-64k AlmaLinux 9 5.14.0-570.41.1.el9_6
  • kernel-core AlmaLinux 9 5.14.0-570.41.1.el9_6

almalinux advisories ALSA-2025:15429ALSA-2025:15447

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-37803 updated cvss 7.3

kernel: udmabuf: fix a buf size overflow issue during udmabuf creation

  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.79.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.79.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.79.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.79.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.79.1.el9_4
    fixed: vendor fix RHSA-2025:11810
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-570.41.1.el9_6, perf 5.14.0-570.41.1.el9_6, rtla 5.14.0-570.41.1.el9_6, python3-perf 5.14.0-570.41.1.el9_6, kernel-devel-matched 5.14.0-570.41.1.el9_6, kernel-64k-devel-matched 5.14.0-570.41.1.el9_6, +7 more
    fixed: vendor fix RHSA-2025:15429
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-55.31.1.el10_0, perf 6.12.0-55.31.1.el10_0, rtla 6.12.0-55.31.1.el10_0, python3-perf 6.12.0-55.31.1.el10_0, kernel-devel-matched 6.12.0-55.31.1.el10_0, kernel-64k-devel-matched 6.12.0-55.31.1.el10_0, +7 more
    fixed: vendor fix RHSA-2025:15447
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.126.1.el9_2, rtla 5.14.0-284.126.1.el9_2, kernel-devel-matched 5.14.0-284.126.1.el9_2, kernel-64k-devel-matched 5.14.0-284.126.1.el9_2, kernel-debug-devel-matched 5.14.0-284.126.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.126.1.el9_2, +5 more
    fixed: vendor fix RHSA-2025:11571
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.79.1.el9_4, perf 5.14.0-427.79.1.el9_4, rtla 5.14.0-427.79.1.el9_4, kernel-devel-matched 5.14.0-427.79.1.el9_4, kernel-64k-devel-matched 5.14.0-427.79.1.el9_4, kernel-debug-devel-matched 5.14.0-427.79.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:11810
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-570.41.1.el9_6, kernel-64k 5.14.0-570.41.1.el9_6, kernel-core 5.14.0-570.41.1.el9_6, kernel-tools 5.14.0-570.41.1.el9_6, kernel-modules 5.14.0-570.41.1.el9_6, kernel-64k-core 5.14.0-570.41.1.el9_6, +27 more
    fixed: vendor fix RHSA-2025:15429
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-55.31.1.el10_0, kernel-64k 6.12.0-55.31.1.el10_0, kernel-core 6.12.0-55.31.1.el10_0, kernel-tools 6.12.0-55.31.1.el10_0, kernel-modules 6.12.0-55.31.1.el10_0, kernel-64k-core 6.12.0-55.31.1.el10_0, +27 more
    fixed: vendor fix RHSA-2025:15447
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.126.1.el9_2, kernel 5.14.0-284.126.1.el9_2, kernel-64k 5.14.0-284.126.1.el9_2, kernel-core 5.14.0-284.126.1.el9_2, kernel-tools 5.14.0-284.126.1.el9_2, python3-perf 5.14.0-284.126.1.el9_2, +28 more
    fixed: vendor fix RHSA-2025:11571
show 14 more
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.79.1.el9_4, kernel 5.14.0-427.79.1.el9_4, kernel-64k 5.14.0-427.79.1.el9_4, kernel-core 5.14.0-427.79.1.el9_4, kernel-tools 5.14.0-427.79.1.el9_4, python3-perf 5.14.0-427.79.1.el9_4, +28 more
    fixed: vendor fix RHSA-2025:11810
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-570.41.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.41.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.41.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.41.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.41.1.el9_6
    fixed: vendor fix RHSA-2025:15429
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-55.31.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.31.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.31.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.31.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.31.1.el10_0
    fixed: vendor fix RHSA-2025:15447
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-570.41.1.el9_6, kernel-rt-64k 5.14.0-570.41.1.el9_6, kernel-rt-core 5.14.0-570.41.1.el9_6, kernel-rt-modules 5.14.0-570.41.1.el9_6, kernel-rt-64k-core 5.14.0-570.41.1.el9_6, kernel-rt-debug-core 5.14.0-570.41.1.el9_6, +14 more
    fixed: vendor fix RHSA-2025:15429
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-55.31.1.el10_0, kernel-rt-64k 6.12.0-55.31.1.el10_0, kernel-rt-core 6.12.0-55.31.1.el10_0, kernel-rt-modules 6.12.0-55.31.1.el10_0, kernel-rt-64k-core 6.12.0-55.31.1.el10_0, kernel-rt-debug-core 6.12.0-55.31.1.el10_0, +14 more
    fixed: vendor fix RHSA-2025:15447
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-core 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-modules 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-core 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-modules-core 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-modules 5.14.0-284.126.1.rt14.411.el9_2, +4 more
    fixed: vendor fix RHSA-2025:11572
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.79.1.el9_4, kernel-rt-core 5.14.0-427.79.1.el9_4, kernel-rt-modules 5.14.0-427.79.1.el9_4, kernel-rt-debug-core 5.14.0-427.79.1.el9_4, kernel-rt-modules-core 5.14.0-427.79.1.el9_4, kernel-rt-debug-modules 5.14.0-427.79.1.el9_4, +4 more
    fixed: vendor fix RHSA-2025:11810
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-570.41.1.el9_6, kernel-rt-kvm 5.14.0-570.41.1.el9_6, kernel-rt-core 5.14.0-570.41.1.el9_6, kernel-rt-modules 5.14.0-570.41.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.41.1.el9_6, kernel-rt-debug-core 5.14.0-570.41.1.el9_6, +6 more
    fixed: vendor fix RHSA-2025:15429
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-55.31.1.el10_0, kernel-rt-kvm 6.12.0-55.31.1.el10_0, kernel-rt-core 6.12.0-55.31.1.el10_0, kernel-rt-modules 6.12.0-55.31.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.31.1.el10_0, kernel-rt-debug-core 6.12.0-55.31.1.el10_0, +6 more
    fixed: vendor fix RHSA-2025:15447
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-kvm 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-core 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-modules 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-kvm 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-core 5.14.0-284.126.1.rt14.411.el9_2, +6 more
    fixed: vendor fix RHSA-2025:11572
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.79.1.el9_4, kernel-rt-kvm 5.14.0-427.79.1.el9_4, kernel-rt-core 5.14.0-427.79.1.el9_4, kernel-rt-modules 5.14.0-427.79.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.79.1.el9_4, kernel-rt-debug-core 5.14.0-427.79.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:11810
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more
    not affected: vulnerable code not in execute path
  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
13 mo ago

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.