CVE-2026-43378
9.8 CRITICALIn the Linux kernel, the following vulnerability has been resolved: smb: server: fix use-after-free in smb2_open() The opinfo pointer o...
Published: 2026-05-08 · Last updated: 2026-05-20
Severity and scoring
- CVSS
- 9.8 CRITICAL
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-416
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
Description
In the Linux kernel, the following vulnerability has been resolved: smb: server: fix use-after-free in smb2_open() The opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is dereferenced after rcu_read_unlock(), creating a use-after-free window.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-43378
- [Patch]https://git.kernel.org/stable/c/190e5f808e8058640b408ccfed25440b441a718a
- [Patch]https://git.kernel.org/stable/c/1e689a56173827669a35da7cb2a3c78ed5c53680
- [Patch]https://git.kernel.org/stable/c/54b48ae83de8bb06e65079d96368efe359d4909c
- [Patch]https://git.kernel.org/stable/c/8f5b1a7cb009a93c48e9e334a2f59a660f9afc07
- [Patch]https://git.kernel.org/stable/c/b720c84087cb547f23ce03eab93568c1769e4556
- [Patch]https://git.kernel.org/stable/c/e1b21e6066615e7d3d3a7aa2677e415e563fd7cc
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