CVE-2026-97415

In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate names in ROOT_REF and ROOT_BACKREF ROOT_REF and ROOT_BACKREF items contain a struct btrfs_root_ref followed by the subvolume name. Several readers assume that this layout is already valid and then use the on-disk name length directly. A corrupted item can therefore make those readers address bytes outside the item, and BTRFS_IOC_GET_SUBVOL_INFO can copy too many bytes into its fixed-size UAPI name buffer. Validate ROOT_REF and ROOT_BACKREF items in tree-checker before any reader uses them. Reject records that do not contain a non-empty name, whose name_len does not exactly describe the remaining item payload, or whose name exceeds BTRFS_NAME_LEN. For BTRFS_IOC_GET_SUBVOL_INFO, copy only the validated on-disk name_len instead of deriving the copy length from the item size. The ioctl result is zeroed when allocated. That leaves the existing trailing zero byte untouched.

• https://git.kernel.org/stable/c/0af37c217edf15fa21dac1c40822086df356c6bb
• https://git.kernel.org/stable/c/74f577c722c99248d804eca18e7de7c5e47549d7
• https://git.kernel.org/stable/c/9154542070ca7eadb3c764a882f39a127677854b

Published

Sep 24, 2026

Last Modified

Sep 25, 2026

Status

Received

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-9741A bug in query analysis processing of the $vectorSearch aggr…7.1
• CVE-2026-97410In the Linux kernel, the following vulnerability has been re…
• CVE-2026-97411In the Linux kernel, the following vulnerability has been re…
• CVE-2026-97412In the Linux kernel, the following vulnerability has been re…
• CVE-2026-97413In the Linux kernel, the following vulnerability has been re…9.8
• CVE-2026-97414In the Linux kernel, the following vulnerability has been re…
• CVE-2026-97416In the Linux kernel, the following vulnerability has been re…
• CVE-2026-97417In the Linux kernel, the following vulnerability has been re…7.5
• CVE-2026-97418In the Linux kernel, the following vulnerability has been re…
• CVE-2026-97419In the Linux kernel, the following vulnerability has been re…
• CVE-2026-9742When OIDC authentication is enabled in configuration, client…5.9
• CVE-2026-97420In the Linux kernel, the following vulnerability has been re…