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CVE-2026-43035

nvd nist
Published: May 1, 2026Modified: Oct 15, 2026

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5.5
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability: 1.8 / Impact: 3.6
Source: NVD

Description

In the Linux kernel, the following vulnerability has been resolved: net: sched: cls_api: fix tc_chain_fill_node to initialize tcm_info to zero to prevent an info-leak When building netlink messages, tc_chain_fill_node() never initializes the tcm_info field of struct tcmsg. Since the allocation is not zeroed, kernel heap memory is leaked to userspace through this 4-byte field. The fix simply zeroes tcm_info alongside the other fields that are already initialized.

Affected (13)

Products: Linux: Linux Kernel
1 product
Linux Kernel
Configuration A
13 vulnerable
Vulnerable SoftwareAffected Versions
Linux
4.19 ≤ version < 5.10.253
5.11 ≤ version < 5.15.203
5.16 ≤ version < 6.1.168
6.13 ≤ version < 6.18.22
6.19 ≤ version < 6.19.12
6.2 ≤ version < 6.6.134
6.7 ≤ version < 6.12.81
Version 7.0 rc1
Version 7.0 rc2
Version 7.0 rc3
Version 7.0 rc4
Version 7.0 rc5
Version 7.0 rc6

References (11)

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e

Timeline

No history available yet.