CVE-2026-43457

mctp: i2c: fix skb memory leak in receive path

MEDIUM

5.5

CVSS Score

Published: May 8, 2026 at 02:22 PM UTC

Updated: June 17, 2026 at 10:49 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: mctp: i2c: fix skb memory leak in receive path When 'midev->allow_rx' is false, the newly allocated skb isn't consumed by netif_rx(), it needs to free the skb directly.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

5.18 ≤ v < 6.1.1675.18 ≤ v < 6.12.785.18 ≤ v < 6.18.195.18 ≤ v < 6.19.95.18 ≤ v < 6.6.1305.18 ≤ v < 7.06.13 ≤ v < 6.18.196.19 ≤ v < 6.19.96.2 ≤ v < 6.6.1306.7 ≤ v < 6.12.785.18 7.0 rc1 7.0 rc2 7.0 rc3f5b8abf9fc3dacd7529d363e26fe8230935d65f8

Vendor states this is fixed in 0fb2adbdd5c03e8c9ebcdc48afd414b2724c85eb (fixed)

Vendor states this is fixed in 1b1be322342a6b0085bf6ee52235e5ac9834ec25 (fixed)

Vendor states this is fixed in 1ec54187e1aa40a4cfa2b265e9a311179f24b98d (fixed)

Vendor states this is fixed in 9f81be2ab9d8e4744871bfb3e868ef413413829f (fixed)

Vendor states this is fixed in d7900a43b0a314a645ca0a2adf45928dbc7001f4 (fixed)

Vendor states this is fixed in e3f5e0f22cfc2371e7471c9fd5b4da78f9df7c69 (fixed)

Vendor states this is fixed in 5.18 (unaffected)

Vendor states this is fixed in 6.1.167 (unaffected)

Vendor states this is fixed in 6.12.78 (unaffected)

Vendor states this is fixed in 6.18.19 (unaffected)

Vendor states this is fixed in 6.19.9 (unaffected)

Vendor states this is fixed in 6.6.130 (unaffected)