CVE-2026-23434High· 7.1▾ TwilightIn 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 devi…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.1 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
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.
Linux >= 92270086b7e5ada7ab381c06cc3da2e95ed17088 < 28ea836cc44cb8b89c1c174707ead0c1133c60e9Linux >= 92270086b7e5ada7ab381c06cc3da2e95ed17088 < fe4a73c3dd48308149d57a10c2761e1d36ced7baLinux >= 92270086b7e5ada7ab381c06cc3da2e95ed17088 < ce5229e78078e437704157eb542f43a6f83b429bLinux >= 92270086b7e5ada7ab381c06cc3da2e95ed17088 < a80291e577b44593a724d6cd64c14337c78f194dLinux >= 92270086b7e5ada7ab381c06cc3da2e95ed17088 < f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2Linux >= 92270086b7e5ada7ab381c06cc3da2e95ed17088 < 5fd5c078af23cb353507aa522e09d557d7eaef04Linux >= 92270086b7e5ada7ab381c06cc3da2e95ed17088 < f25446e2c28939753d3b62d34dfda49952b2557dLinux >= 92270086b7e5ada7ab381c06cc3da2e95ed17088 < bab2bc6e850a697a23b9e5f0e21bb8c187615e95Linux 5.7Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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