CVE-2026-23434

HIGH 7.1

mtd: rawnand: serialize lock/unlock against other NAND operations

CVSS Score

7.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	linux
Product	linux
Ecosystems	Linux Kernel
Industries	Technology
Published	Apr 3, 2026
Last Updated	May 11, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Linux / Linux

92270086b7e5ada7ab381c06cc3da2e95ed17088 < 28ea836cc44cb8b89c1c174707ead0c1133c60e9 92270086b7e5ada7ab381c06cc3da2e95ed17088 < fe4a73c3dd48308149d57a10c2761e1d36ced7ba 92270086b7e5ada7ab381c06cc3da2e95ed17088 < ce5229e78078e437704157eb542f43a6f83b429b 92270086b7e5ada7ab381c06cc3da2e95ed17088 < a80291e577b44593a724d6cd64c14337c78f194d 92270086b7e5ada7ab381c06cc3da2e95ed17088 < f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2 92270086b7e5ada7ab381c06cc3da2e95ed17088 < 5fd5c078af23cb353507aa522e09d557d7eaef04 92270086b7e5ada7ab381c06cc3da2e95ed17088 < f25446e2c28939753d3b62d34dfda49952b2557d 92270086b7e5ada7ab381c06cc3da2e95ed17088 < bab2bc6e850a697a23b9e5f0e21bb8c187615e95

Linux / Linux

5.7

References

NVD ↗ CVE.org ↗ EPSS Data ↗