SB2025110329 - Red Hat Enterprise Linux 10 update for kernel
Published: November 3, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Resource management error (CVE-ID: CVE-2025-39702)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the seg6_hmac_validate_skb() function in net/ipv6/seg6_hmac.c. A local user can perform a denial of service (DoS) attack.
2) Use-after-free (CVE-ID: CVE-2025-39881)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the of_on(), kernfs_seq_stop_active(), kernfs_seq_start(), kernfs_file_read_iter(), kernfs_fop_write_iter(), kernfs_vma_open(), kernfs_vma_fault(), kernfs_vma_page_mkwrite(), kernfs_vma_access(), kernfs_fop_mmap() and kernfs_fop_poll() functions in fs/kernfs/file.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.