CVE-2024-50086 — Use After Free in Linux

CWE-416 — Use After Free61 documents6 sources
Severity
7.0HIGHNVD
OSV8.8OSV7.8OSV5.5
EPSS
0.0%
top 95.90%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
LinuxLinux KernelDebian Linux+1 more
Timeline
PublishedOct 29
Latest updateMay 26

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix user-after-free from session log off There is racy issue between smb2 session log off and smb2 session setup. It will cause user-after-free from session log off. This add session_lock when setting SMB2_SESSION_EXPIRED and referece count to session struct not to free session while it is being used.

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 Packages6 packages

▶NVDlinux/linux_kernel6.2 — 6.6.58+3
▶Debianlinux/linux_kernel< 6.1.115-1+2
▶Ubuntulinux/linux_kernel< 5.15.0-133.144+2
▶CVEListV5linux/linux0626e6641f6b467447c81dd7678a69c66f7746cf — 0f62358ce85b2d4c949ef1b648be01b29cec667a+5
▶debiandebian/linux< linux 6.1.115-1 (bookworm)

Patches

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

🔴Vulnerability Details

30
OSV
linux-raspi vulnerabilities↗2025-05-26
▶
OSV
linux-raspi-realtime vulnerabilities↗2025-05-20
▶
OSV
linux-azure-nvidia vulnerabilities↗2025-04-28
▶
OSV
linux-ibm-5.15 vulnerabilities↗2025-04-24
▶
OSV
linux-aws-6.8 vulnerabilities↗2025-04-23
▶

📋Vendor Advisories

30
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities↗2025-05-26
▶
Ubuntu
Linux kernel (Raspberry Pi Real-time) vulnerabilities↗2025-05-20
▶
Ubuntu
Linux kernel (Azure, N-Series) vulnerabilities↗2025-04-28
▶
Ubuntu
Linux kernel (IBM) vulnerabilities↗2025-04-24
▶
Ubuntu
Linux kernel vulnerabilities↗2025-04-23
▶