SB2025102003 - Red Hat Enterprise Linux 9 update for kernel
Published: October 20, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2025-22026)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the nfsd_show() function in fs/nfsd/stats.c, within the nfsd_net_init() function in fs/nfsd/nfsctl.c. A local user can perform a denial of service (DoS) attack.
2) Use-after-free (CVE-ID: CVE-2022-50087)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the scpi_init_versions() and scpi_probe() functions in drivers/firmware/arm_scpi.c. A local user can escalate privileges on the system.
3) Incorrect calculation (CVE-ID: CVE-2025-38571)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect calculation within the xs_alloc_sparse_pages(), xs_sock_process_cmsg(), xs_sock_recvmsg() and xs_read_discard() functions in net/sunrpc/xprtsock.c. A local user can perform a denial of service (DoS) attack.
4) Resource management error (CVE-ID: CVE-2025-38566)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the svc_tcp_sock_process_cmsg(), svc_tcp_read_msg() and svc_tcp_read_marker() functions in net/sunrpc/svcsock.c. A local user can perform a denial of service (DoS) attack.
5) Buffer overflow (CVE-ID: CVE-2025-39817)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the efivarfs_d_compare() function in fs/efivarfs/super.c. A local user can perform a denial of service (DoS) attack.
6) Buffer overflow (CVE-ID: CVE-2025-39849)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the __cfg80211_connect_result() function in net/wireless/sme.c. A local user can escalate privileges on the system.
7) Use-after-free (CVE-ID: CVE-2025-39841)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the lpfc_nvmet_defer_rcv() function in drivers/scsi/lpfc/lpfc_nvmet.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.