CVE-2026-23282 smb: client: fix oops due to uninitialised var in smb2_unlink()

What is CVE-2026-23282?

CVE-2026-23282 is a medium-severity vulnerability in Linux kernel, published on 25 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix oops due to uninitialised var in smb2_unlink()

If SMB2_open_init() or SMB2_close_init() fails (e.g. reconnect), the iovs set @rqst will be left uninitialised, hence calling SMB2_open_free(), SMB2_close_free() or smb2_set_related() on them will oops.

Fix this by initialising @close_iov and @open_iov before setting them in @rqst.

Weakness: CWE-908

Which versions are affected by CVE-2026-23282?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-23282?

Apply the vendor's patch.

Is CVE-2026-23282 being exploited?

There is no known exploitation of CVE-2026-23282 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2026-23282, DEBIAN-CVE-2026-23282, GHSA-xc6w-xcgh-jjhw, UBUNTU-CVE-2026-23282.