CVE-2026-23434
Last modified
CVE-2026-23434 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.13% chance of exploitation in the next 30 days.
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.
Metrics
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 5.7.1, < 5.10.253 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.203 | — |
| Linux | Linux Kernel | >= 5.16, < 6.1.167 | — |
| Linux | Linux Kernel | >= 6.2, < 6.6.130 | — |
| Linux | Linux Kernel | >= 6.7, < 6.12.78 | — |
| Linux | Linux Kernel | >= 6.13, < 6.18.20 | — |
| Linux | Linux Kernel | >= 6.19, < 6.19.10 | — |
| Linux | Linux Kernel | 5.7 | — |
| Linux | Linux Kernel | 7.0 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2026-23434?
How severe is CVE-2026-23434?
How do I fix CVE-2026-23434?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-23429In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-2343The PeproDev Ultimate Invoice WordPress plugin through 2.2.5…5.3
- CVE-2026-23430In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-23431In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-23432In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-23433In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-23435In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-23436In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-23437In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-23438In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-23439In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-2344A vulnerability in Plunet Plunet BusinessManager allows unau…8.6
Are you affected by CVE-2026-23434?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST