CVE-2026-23434

MEDIUM EPSS 2.6%
Published Apr 3, 20262mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 3, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: serialize lock/unlock against other NAND operations nand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area without holding the NAND device lock. On controllers that implement SET_FEATURES via multiple low-level PIO commands, these can race with concurrent UBI/UBIFS background erase/write operations that hold the device lock, resulting in cmd_pending conflicts on the NAND controller. Add nand_get_device()/nand_release_device() around the lock/unlock operations to serialize them against all other NAND controller access.

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
2.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 15

VendorProductVersionRange
linuxlinux_kernel*≥5.7.1  –  <5.10.253
linuxlinux_kernel*≥5.11  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.167
linuxlinux_kernel*≥6.2  –  <6.6.130
linuxlinux_kernel*≥6.7  –  <6.12.78
linuxlinux_kernel*≥6.13  –  <6.18.20
linuxlinux_kernel*≥6.19  –  <6.19.10
linuxlinux_kernel5.7any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/28ea836cc44cb8b89c1c174707ead0c1133c60e9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5fd5c078af23cb353507aa522e09d557d7eaef04
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a80291e577b44593a724d6cd64c14337c78f194d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bab2bc6e850a697a23b9e5f0e21bb8c187615e95
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ce5229e78078e437704157eb542f43a6f83b429b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f25446e2c28939753d3b62d34dfda49952b2557d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fe4a73c3dd48308149d57a10c2761e1d36ced7ba
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/28ea836cc44cb8b89c1c174707ead0c1133c60e9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5fd5c078af23cb353507aa522e09d557d7eaef04
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a80291e577b44593a724d6cd64c14337c78f194d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bab2bc6e850a697a23b9e5f0e21bb8c187615e95
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ce5229e78078e437704157eb542f43a6f83b429b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f25446e2c28939753d3b62d34dfda49952b2557d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fe4a73c3dd48308149d57a10c2761e1d36ced7ba
    Patch