CVE-2026-23423 in Kernel

Resumen (Inglés)

In the Linux kernel, the following vulnerability has been resolved:

btrfs: free pages on error in btrfs_uring_read_extent()

In this function the 'pages' object is never freed in the hopes that it is
picked up by btrfs_uring_read_finished() whenever that executes in the
future. But that's just the happy path. Along the way previous
allocations might have gone wrong, or we might not get -EIOCBQUEUED from
btrfs_encoded_read_regular_fill_pages(). In all these cases, we go to a
cleanup section that frees all memory allocated by this function without
assuming any deferred execution, and this also needs to happen for the
'pages' allocation.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Responsable

Linux

Reservar

2026-01-13

Divulgación

2026-04-03

Estado

Confirmado

Voces

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerabilidad	CWE	Exp	Con	CVE
355096	Linux Kernel btrfs btrfs_uring_read_extent denegación de servicio	770	No está definido	Arreglo oficial	CVE-2026-23423

Fuentes

• MITRE
• NVD
• CVE Details