Read the docs
TI-2025-25154 Aliases CVE-2025-37803GHSA-42fq-x79v-5vv5

udmabuf: fix a buf size overflow issue during udmabuf creation

Priority LOW 36CWE-120Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-120 and the CVSS impact.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0025 16th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.4.293, 5.10.237, 5.15.181 +5Red Hat: 5 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux4.20 and later5.4.293, 5.10.237, 5.15.181, 6.1.136, 6.6.89, 6.12.57, 6.14.5, 6.15Patch availableCNA
  • Linux VendorLinux Affected 4.20 and later Fixed in 5.4.293, 5.10.237, 5.15.181, 6.1.136, 6.6.89, 6.12.57, 6.14.5, 6.15 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 5.4.293; 5.5 to before 5.10.237; 5.11 to before 5.15.181; 5.16 to before 6.1.136; 6.2 to before 6.6.89; 6.7 to before 6.14.5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*6.15 rc1VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 5.4.293; 5.5 to before 5.10.237; 5.11 to before 5.15.181; 5.16 to before 6.1.136; 6.2 to before 6.6.89; 6.7 to before 6.14.5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:* Versions 6.15 rc1 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.4.293, 5.10.237, 5.15.181, 6.1.136, 6.6.89, 6.12.57, 6.14.5, 6.15

Red Hat 5 advisories

  • RHSA-2025:15447 Released 2025-09-08 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-55.31.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.31.1.el10_0, kernel-64k-devel-6.12.0-55.31.1.el10_0 +12
    • 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-64k-core-6.12.0-55.31.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-55.31.1.el10_0, libperf-6.12.0-55.31.1.el10_0
    • 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-64k-core-6.12.0-55.31.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-55.31.1.el10_0, kernel-rt-core-6.12.0-55.31.1.el10_0, kernel-rt-debug-6.12.0-55.31.1.el10_0 +11
  • RHSA-2025:15429 Released 2025-09-08 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.41.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.41.1.el9_6, kernel-64k-devel-5.14.0-570.41.1.el9_6 +12
    • 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-64k-core-5.14.0-570.41.1.el9_6 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.41.1.el9_6, libperf-5.14.0-570.41.1.el9_6
    • 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-64k-core-5.14.0-570.41.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.41.1.el9_6, kernel-rt-core-5.14.0-570.41.1.el9_6, kernel-rt-debug-5.14.0-570.41.1.el9_6 +11
  • RHSA-2025:11810 Released 2025-07-28 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.79.1.el9_4, libperf-5.14.0-427.79.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.79.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.79.1.el9_4, kernel-64k-devel-5.14.0-427.79.1.el9_4 +11
    • 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 +29
    • 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-debug-5.14.0-427.79.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV 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-debug-5.14.0-427.79.1.el9_4 +11
Show 2 more Red Hat advisories
  • RHSA-2025:11571 Released 2025-07-23 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.126.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.126.1.el9_2, kernel-64k-devel-5.14.0-284.126.1.el9_2 +10
    • 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 +29
  • RHSA-2025:11572 Released 2025-07-23 · Red Hat rating Important
    kernel-rt security update
    • 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-debug-5.14.0-284.126.1.rt14.411.el9_2 +9
    • 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-core-5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-5.14.0-284.126.1.rt14.411.el9_2 +11

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2025:11810
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:15447
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:15429
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2025:11571
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:11810
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2025:15447
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:15429
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2025:11571
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2025:11810
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:15447
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:15429
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2025:15447
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2025:15429
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2025:11572
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2025:11810
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2025:15447
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2025:15429
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2025:11572
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2025:11810
Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-37803
  2. 2026-10-03 Alias added: GHSA-42fq-x79v-5vv5

References

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources