CVE-2026-43124

MEDIUM EPSS 2.8%
Published May 6, 20261mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 6, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: pstore: ram_core: fix incorrect success return when vmap() fails In persistent_ram_vmap(), vmap() may return NULL on failure. If offset is non-zero, adding offset_in_page(start) causes the function to return a non-NULL pointer even though the mapping failed. persistent_ram_buffer_map() therefore incorrectly returns success. Subsequent access to prz->buffer may dereference an invalid address and cause crashes. Add proper NULL checking for vmap() failures.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥3.16.62  –  <5.10.252
linuxlinux_kernel*≥5.11  –  <5.15.202
linuxlinux_kernel*≥5.16  –  <6.1.165
linuxlinux_kernel*≥6.2  –  <6.6.128
linuxlinux_kernel*≥6.7  –  <6.12.75
linuxlinux_kernel*≥6.13  –  <6.18.16
linuxlinux_kernel*≥6.19  –  <6.19.6

References 8

  • git.kernel.org https://git.kernel.org/stable/c/05363abc7625cf18c96e67f50673cd07f11da5e9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1da904e84de608907662ad8a51ba9c571d61e003
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2c99326dc1c79b7ce3c8dd92929b5ce724ff70eb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/49918dd52615097529811d21ec6074dd02ebe77c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/88d5b28f63c7aac1271784e3b800ed405d1cde75
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8baa234181f632cabacf73e4834a910859e9fcc9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8d849adfbc3e98417fb541620568db1a759ef441
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d47234840aeb4182ed3ee795c578b1dfa9cbd25b
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/05363abc7625cf18c96e67f50673cd07f11da5e9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1da904e84de608907662ad8a51ba9c571d61e003
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2c99326dc1c79b7ce3c8dd92929b5ce724ff70eb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/49918dd52615097529811d21ec6074dd02ebe77c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/88d5b28f63c7aac1271784e3b800ed405d1cde75
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8baa234181f632cabacf73e4834a910859e9fcc9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8d849adfbc3e98417fb541620568db1a759ef441
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d47234840aeb4182ed3ee795c578b1dfa9cbd25b
    Patch