CVE-2026-23141

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.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-25)

Published

2026-02-14

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/08b096c1372cd69627f4f559fb47c9fb67a52b39
• https://git.kernel.org/stable/c/39f83f10772310ba4a77f2b5256aaf36994ef7e8
• https://git.kernel.org/stable/c/901e581bfc44d181f7d9c3f11880dac3e89deb2e
• https://git.kernel.org/stable/c/d948055bd46a9c14d1d4217aed65c5c258c32903
• https://git.kernel.org/stable/c/db00636643e66898d79f2530ac9c56ebd5eca369

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