PT-2026-61227 · Linux+1 · Linux Kernel+1

CVE-2026-63910

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Published

2026-05-28

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Updated

2026-09-07

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A use-after-free issue exists in the dma buf fd() tracepoint. This occurs because a thread sharing the file descriptor table can call close() after FD ADD() returns but before DMA BUF TRACE() executes. If the close operation drops the last reference, fput() frees the dma buf, leading to a slab-use-after-free when the tracepoint attempts to dereference dmabuf to access dmabuf->name lock.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Time Of Check To Time Of Use

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Weakness Enumeration

Related Identifiers

BDU:2026-14410
CVE-2026-63910
USN-8593-1
USN-8603-1
USN-8618-1
USN-8663-1
USN-8664-1
USN-8728-1

Affected Products

Linux Kernel
Ubuntu