In the Linux kernel, the following vulnerability has been resolved:
fs/buffer: add alert in try_to_free_buffers() for folios without buffers
try_to_free_buffers() can be called on folios with no buffers attached
when filemap_release_folio() is invoked on a folio belonging to a mapping
with AS_RELEASE_ALWAYS set but no release_folio operation defined.
In such cases, folio_needs_release() returns true because of the
AS_RELEASE_ALWAYS flag, but the folio has no private buffer data. This
causes try_to_free_buffers() to call drop_buffers() on a folio with no
buffers, leading to a null pointer dereference.
Adding a check in try_to_free_buffers() to return early if the folio has no
buffers attached, with WARN_ON_ONCE() to alert about the misconfiguration.
This provides defensive hardening.
References
Configurations
Configuration 1 (hide)
|
History
12 May 2026, 21:21
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | CWE-476 | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/1b111a69a6e33a922622bf9870e4e63fb2b649c8 - Patch | |
| References | () https://git.kernel.org/stable/c/42c32d7571ccd8ef32351cac506f00b0fae99fd2 - Patch | |
| References | () https://git.kernel.org/stable/c/727e5140e0cf83b4ce6a11b89bb73bff5d96f8f3 - Patch | |
| References | () https://git.kernel.org/stable/c/b68f91ef3b3fe82ad78c417de71b675699a8467c - Patch | |
| References | () https://git.kernel.org/stable/c/c1b6227555c52781178132b7a06466711855795c - Patch | |
| References | () https://git.kernel.org/stable/c/c6246ca15999053d2632fbcc7b86e6eef7f077cb - Patch |
06 May 2026, 12:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-06 12:16
Updated : 2026-05-12 21:21
NVD link : CVE-2025-71295
Mitre link : CVE-2025-71295
CVE.ORG link : CVE-2025-71295
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference