CVE-2026-45972
Critical
Description
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF and double free in smb2_open_file() Zero out @err_iov and @err_buftype before retrying SMB2_open() to prevent an UAF bug if @data != NULL, otherwise a double free.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Linux Kernel
PublishedMay 27, 2026
First seenMay 27, 2026
Weakness typeCWE-825CWE-825
How to fix
Update
- linux linux_kernel6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.1.163 ≤ v < 6.1.165, 6.6.124 ≤ v < 6.6.128, 6.12.70 ≤ v < 6.12.75, 6.18.10 ≤ v < 6.18.14, 6.19.1 ≤ v < 6.19.4, 6.19 | 6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4 |
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