Use-after-free in Linux kernel - CVE-2022-48919
Published: August 22, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU96413
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-48919
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the cifs_do_mount() function in fs/cifs/cifsfs.c. A local user can escalate privileges on the system.
How to mitigate CVE-2022-48919
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/da834d6c1147c7519a9e55b510a03b7055104749
- https://git.kernel.org/stable/c/147a0e71ccf96df9fc8c2ac500829d8e423ef02c
- https://git.kernel.org/stable/c/2fe0e281f7ad0a62259649764228227dd6b2561d
- https://git.kernel.org/stable/c/e208668ef7ba23efcbf76a8200cab8deee501c4d
- https://git.kernel.org/stable/c/df9db1a2af37f39ad1653c7b9b0d275d72d0bc67
- https://git.kernel.org/stable/c/546d60859ecf13380fcabcbeace53a5971493a2b
- https://git.kernel.org/stable/c/563431c1f3c8f2230e4a9c445fa23758742bc4f0
- https://git.kernel.org/stable/c/3d6cc9898efdfb062efb74dc18cfc700e082f5d5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.270
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.233
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.305
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.104
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.27
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.183