Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L N U N N H 5.5 .0013 2.5 —
AFFECTED Product Versions Fixed Linux 92270086b7e5ada7ab381c06cc3da2e95ed17088 – — Linux 5.7 – 5.10.253
TIMELINE Jan 13 Reserved by Linux Apr 3 Published (CNA: Linux) Oct 15 RESCORED — CVE-2026-23434 (Linux). CVSS 7.1 → 5.5 (NVD).
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.
| Date | Event | Detail |
|---|---|---|
| January 13, 2026 | Reserved | Reserved by Linux |
| April 3, 2026 | Published | Published (CNA: Linux) |
| October 15, 2026 | RESCORED | RESCORED — CVE-2026-23434 (Linux). CVSS 7.1 → 5.5 (NVD). |
Authoritative record: CVE-2026-23434 at cve.org
Vendors: linux
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-23434 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
