CVE-2026-23141

MEDIUM

Linux Kernel - Denial of Service via Btrfs Send Inline Extent Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: send: check for inline extents in range_is_hole_in_parent() Before accessing the disk_bytenr field of a file extent item we need to check if we are dealing with an inline extent. This is because for inline extents their data starts at the offset of the disk_bytenr field. So accessing the disk_bytenr means we are accessing inline data or in case the inline data is less than 8 bytes we can actually cause an invalid memory access if this inline extent item is the first item in the leaf or access metadata from other items.

Scores

CVSS v3 5.5
EPSS 0.0002
EPSS Percentile 4.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (17)
linux/Kernel 4.11.0 - 6.6.122linux
linux/Kernel 6.13.0 - 6.18.7linux
linux/Kernel 6.7.0 - 6.12.67linux
Linux/Linux < 4.11
Linux/Linux 4.11
Linux/Linux 6.1.167 - 6.1.*
Linux/Linux 6.12.67 - 6.12.*
Linux/Linux 6.18.7 - 6.18.*
Linux/Linux 6.19
Linux/Linux 6.6.122 - 6.6.*
... and 7 more
Published Feb 14, 2026
Tracked Since Feb 18, 2026