PT-2025-28871 · Btrfs+2 · Btrfs+2

Anubis · Published 2025-06-03 · Updated 2026-03-24 · CVE-2025-38243

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Linux kernel (affected versions not specified)

Description: The Linux kernel contains a flaw where invalid inode pointer dereferences can occur during log replay within the btrfs filesystem. This issue arises from calling read one inode() which, if it receives a NULL pointer, can lead to an invalid memory access and a system crash when attempting to release the inode using iput(&inode->vfs inode).

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-09587

CVE-2025-38243

OPENSUSE-SU-2026:20287-1

SUSE-SU-2026:0447-1

SUSE-SU-2026:0471-1

SUSE-SU-2026:0472-1

SUSE-SU-2026:0587-1

SUSE-SU-2026:20477-1

SUSE-SU-2026:20498-1

SUSE-SU-2026:20555-1

SUSE-SU-2026:20599-1

SUSE-SU-2026:20615-1

SUSE-SU-2026:20845-1

SUSE-SU-2026:20876-1

Affected Products

Astra Linux

Linux Kernel

Btrfs

References · 1602

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38243.json · Exploit
• https://osv.dev/vulnerability/CVE-2025-38243 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20555-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-38243 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:20287-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20498-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20477-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20876-1 · Vendor Advisory
• https://git.kernel.org/stable/c/2dcf838cf5c2f0f4501edaa1680fcad03618d760 · Patch
• https://git.kernel.org/stable/c/ba8386d662cc51cc5382688bbf7a152b0b0b27cf · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:0471-1 · Vendor Advisory
• https://git.kernel.org/stable/c/401d098f92ea69d8a75f8b845daf343e511681ba · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-38243 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0472-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0447-1 · Vendor Advisory