CVE-2026-23141
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Record status
- Modified
Affected
- Linux Kernel < 6.6.122
- Linux Kernel < 6.12.67
- Linux Kernel < 6.18.7
- Linux Kernel 6.19
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-23141.md and follow it. Check whether this project is affected by CVE-2026-23141. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/08b096c1372cd69627f4f559fb47c9fb67a52b39
- https://git.kernel.org/stable/c/39f83f10772310ba4a77f2b5256aaf36994ef7e8
- https://git.kernel.org/stable/c/db00636643e66898d79f2530ac9c56ebd5eca369
- https://git.kernel.org/stable/c/f2dc6ab3a14c2d2eb0b14783427eb9b03bf631c9
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
- https://git.kernel.org/stable/c/f2dc6ab3a14c2d2eb0b14783427eb9b03bf631c9
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html