Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2025-38546

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
16/08/2025
Last modified:
07/01/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> atm: clip: Fix memory leak of struct clip_vcc.<br /> <br /> ioctl(ATMARP_MKIP) allocates struct clip_vcc and set it to<br /> vcc-&gt;user_back.<br /> <br /> The code assumes that vcc_destroy_socket() passes NULL skb<br /> to vcc-&gt;push() when the socket is close()d, and then clip_push()<br /> frees clip_vcc.<br /> <br /> However, ioctl(ATMARPD_CTRL) sets NULL to vcc-&gt;push() in<br /> atm_init_atmarp(), resulting in memory leak.<br /> <br /> Let&amp;#39;s serialise two ioctl() by lock_sock() and check vcc-&gt;push()<br /> in atm_init_atmarp() to prevent memleak.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 2.6.13 (including) 5.4.296 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.5 (including) 5.10.240 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.189 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.1.146 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.99 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.12.39 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.13 (including) 6.15.7 (excluding)
cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools