In the Linux kernel, the following vulnerability has been resolved:
mm: call ->free_folio() directly in folio_unmap_invalidate()
We can only call filemap_free_folio() if we have a reference to (or hold a
lock on) the mapping. Otherwise, we've already removed the folio from the
mapping so it no longer pins the mapping and the mapping can be removed,
causing a use-after-free when accessing mapping->a_ops.
Follow the same pattern as __remove_mapping() and load the free_folio
function pointer before dropping the lock on the mapping. That lets us
make filemap_free_folio() static as this was the only caller outside
filemap.c.
References
Configurations
Configuration 1 (hide)
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History
28 Apr 2026, 20:40
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux
Linux linux Kernel |
|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-416 | |
| References | () https://git.kernel.org/stable/c/615d9bb2ccad42f9e21d837431e401db2e471195 - Patch | |
| References | () https://git.kernel.org/stable/c/b667df39d98a7a24be7c2a40ff0863dac1ad2cd7 - Patch | |
| References | () https://git.kernel.org/stable/c/c330e65ea59c4805d6ab6757c4ddfe8c63acef31 - Patch |
27 Apr 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 9.8 |
27 Apr 2026, 12:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
24 Apr 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-24 15:16
Updated : 2026-04-28 20:40
NVD link : CVE-2026-31589
Mitre link : CVE-2026-31589
CVE.ORG link : CVE-2026-31589
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-416
Use After Free