Information disclosure in Linux kernel - CVE-2024-35956
Published: June 8, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91343
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-35956
CWE-ID: CWE-200
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 gain access to sensitive information.
The vulnerability exists due to information disclosure within the btrfs_subvolume_reserve_metadata() function in fs/btrfs/root-tree.c, within the create_subvol() and create_snapshot() functions in fs/btrfs/ioctl.c, within the btrfs_delete_subvolume() and btrfs_end_transaction() functions in fs/btrfs/inode.c. A local user can gain access to sensitive information.
How to mitigate CVE-2024-35956
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/14431815a4ae4bcd7c7a68b6a64c66c7712d27c9
- https://git.kernel.org/stable/c/6c95336f5d8eb9ab79cd7306d71b6d0477363f8c
- https://git.kernel.org/stable/c/74e97958121aa1f5854da6effba70143f051b0cd
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.120
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.28
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.7