CVE-2025-38051 — Use After Free in Linux

CWE-416 — Use After FreeCWE-825 — Expired Pointer Dereference67 documents8 sources
Severity
7.0HIGHNVD
OSV5.5OSV3.2
EPSS
0.1%
top 75.93%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedJun 18
Latest updateMar 25

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free in cifs_fill_dirent There is a race condition in the readdir concurrency process, which may access the rsp buffer after it has been released, triggering the following KASAN warning. BUG: KASAN: slab-use-after-free in cifs_fill_dirent+0xb03/0xb60 [cifs] Read of size 4 at addr ffff8880099b819c by task a.out/342975 CPU: 2 UID: 0 PID: 342975 Comm: a.out Not tainted 6.15.0-rc6+ #240 PREEMPT(full) H…

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9

Affected Packages4 packages

▶NVDlinux/linux_kernel2.6.27.4 — 5.4.294+7
▶Debianlinux/linux_kernel< 5.10.244-1+3
▶Ubuntulinux/linux_kernel< 5.15.0-152.162+1
▶CVEListV5linux/linuxa364bc0b37f14ffd66c1f982af42990a9d77fa43 — aee067e88d61eb72e966f094e4749c6b14e7008f+9

Also affects: Debian Linux 11.0

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

34
OSV
linux-azure-6.8 vulnerabilities↗2026-03-25
▶
OSV
linux-azure-fips vulnerabilities↗2026-03-04
▶
OSV
linux-azure vulnerabilities↗2026-03-04
▶
OSV
linux-ibm, linux-ibm-6.8 vulnerabilities↗2026-02-24
▶
OSV
linux-xilinx vulnerabilities↗2026-02-24
▶

📋Vendor Advisories

32
Ubuntu
Linux kernel (Azure) vulnerabilities↗2026-03-25
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2026-03-04
▶
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities↗2026-03-04
▶
Ubuntu
Linux kernel (Xilinx) vulnerabilities↗2026-02-24
▶
Ubuntu
Linux kernel (IBM) vulnerabilities↗2026-02-24
▶
CVE-2025-38051 — Use After Free in Linux | cvebase