SB2025063035 - Red Hat Enterprise Linux 10 update for kernel

Description

This security bulletin contains information about 3 vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2025-21999)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 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

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the proc_get_inode() function in fs/proc/inode.c, within the proc_create_reg(), proc_create_seq_private() and proc_create_single_data() functions in fs/proc/generic.c. A local user can escalate privileges on the system.

2) Use-after-free (CVE-ID: CVE-2025-23150)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 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

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the do_split() function in fs/ext4/namei.c. A local user can escalate privileges on the system.

3) Use-after-free (CVE-ID: CVE-2025-37738)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 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

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the ext4_xattr_inode_dec_ref_all() function in fs/ext4/xattr.c. A local user can escalate privileges on the system.

Remediation

Install update from vendor's website.

References

• https://access.redhat.com/errata/RHSA-2025:9348