7.8
HIGH CVSS 3.1
CVE-2026-46178
RDMA/mlx4: Fix resource leak on error in mlx4_ib_create_srq()
Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx4: Fix resource leak on error in mlx4_ib_create_srq() Sashiko points out that mlx4_srq_alloc() was not undone during error unwind, add the missing call to mlx4_srq_free().

INFO

Published Date :

May 28, 2026, 10:16 a.m.

Last Modified :

June 11, 2026, 2:59 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2026-46178 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Fix a resource leak in the RDMA/mlx4 driver by adding a missing call to free allocated resources on error.
  • Apply the patch to the Linux kernel.
  • Update the RDMA/mlx4 driver.
  • Ensure mlx4_srq_free() is called on error.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-46178 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-46178 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-46178 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-46178 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Jun. 11, 2026

    Action Type Old Value New Value
    Added CWE CWE-401
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.30 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.175 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.209 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.7 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.88 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.140 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.22 up to (excluding) 5.10.258
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/0be6ae614ca7fa53e7389e3c7462ed20abbd4192 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/0dbd619716fb07b7de1acd64fec673ee6e1adde7 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/388617f44d81604a760742a0b5de292d411e63e3 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/53fd4c03558672ccb167754fbacbf045c7ab335c Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/5b3b220d54e6a3d77380cb7caa1ef79cb8f4fc94 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/c54c7e4cb679c0aaa1cb489b9c3f2cd98e63a44c Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/c5dc30da990045105c9762248d23076223e7878a Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/e01b8c9286c470b71a38acd320106f2c4f2826a1 Types: Patch
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 01, 2026

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/0be6ae614ca7fa53e7389e3c7462ed20abbd4192
    Added Reference https://git.kernel.org/stable/c/53fd4c03558672ccb167754fbacbf045c7ab335c
    Added Reference https://git.kernel.org/stable/c/5b3b220d54e6a3d77380cb7caa1ef79cb8f4fc94
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 30, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 28, 2026

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx4: Fix resource leak on error in mlx4_ib_create_srq() Sashiko points out that mlx4_srq_alloc() was not undone during error unwind, add the missing call to mlx4_srq_free().
    Added Reference https://git.kernel.org/stable/c/0dbd619716fb07b7de1acd64fec673ee6e1adde7
    Added Reference https://git.kernel.org/stable/c/388617f44d81604a760742a0b5de292d411e63e3
    Added Reference https://git.kernel.org/stable/c/c54c7e4cb679c0aaa1cb489b9c3f2cd98e63a44c
    Added Reference https://git.kernel.org/stable/c/c5dc30da990045105c9762248d23076223e7878a
    Added Reference https://git.kernel.org/stable/c/e01b8c9286c470b71a38acd320106f2c4f2826a1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.