← CVE Intelligence

CVE-2026-23434

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 92270086b7e5ada7ab381c06cc3da2e95ed17088 before 28ea836cc44cb8b89c1c174707ead0c1133c60e9; affected 92270086b7e5ada7ab381c06cc3da2e95ed17088 before fe4a73c3dd48308149d57a10c2761e1d36ced7ba; affected 92270086b7e5ada7ab381c06cc3da2e95ed17088 before ce5229e78078e437704157eb542f43a6f83b429b; affected 92270086b7e5ada7ab381c06cc3da2e95ed17088 before a80291e577b44593a724d6cd64c14337c78f194d; affected 92270086b7e5ada7ab381c06cc3da2e95ed17088 before f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2; affected 92270086b7e5ada7ab381c06cc3da2e95ed17088 before 5fd5c078af23cb353507aa522e09d557d7eaef04; affected 92270086b7e5ada7ab381c06cc3da2e95ed17088 before f25446e2c28939753d3b62d34dfda49952b2557d; affected 92270086b7e5ada7ab381c06cc3da2e95ed17088 before bab2bc6e850a697a23b9e5f0e21bb8c187615e95
Linux / Linuxaffected 5.7; unaffected 0 before 5.7; unaffected 5.10.253 through 5.10.*; unaffected 5.15.203 through 5.15.*; unaffected 6.1.167 through 6.1.*; unaffected 6.6.130 through 6.6.*; unaffected 6.12.78 through 6.12.*; unaffected 6.18.20 through 6.18.*; unaffected 6.19.10 through 6.19.*; unaffected 7.0 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

siemens-SADP

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.