SB2026011484 - Red Hat Enterprise Linux 9 update for kernel-rt

Description

This security bulletin contains information about 11 vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2025-38724)

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 nfsd4_setclientid_confirm() function in fs/nfsd/nfs4state.c. A local user can escalate privileges on the system.

2) Race condition (CVE-ID: CVE-2025-39825)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/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 race condition within the cifs_rename2() function in fs/smb/client/inode.c. A local user can escalate privileges on the system.

3) Resource management error (CVE-ID: CVE-2025-39925)

CWE-ID: CWE-399 - Resource Management Errors

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the j1939_sk_netdev_event_netdown() function in net/can/j1939/socket.c. A local user can perform a denial of service (DoS) attack.

4) Race condition (CVE-ID: CVE-2022-50447)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a race condition within the hci_create_cis_sync() function in net/bluetooth/hci_conn.c. A local user can perform a denial of service (DoS) attack.

5) Buffer overflow (CVE-ID: CVE-2023-53539)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the save_state() and rxe_requester() functions in drivers/infiniband/sw/rxe/rxe_req.c. A local user can perform a denial of service (DoS) attack.

6) Out-of-bounds read (CVE-ID: CVE-2023-53680)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an out-of-bounds read error within the nfsd4_decode_compound() function in fs/nfsd/nfs4xdr.c. A local user can perform a denial of service (DoS) attack.

7) Out-of-bounds read (CVE-ID: CVE-2023-53675)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an out-of-bounds read error within the ses_enclosure_data_process() function in drivers/scsi/ses.c. A local user can perform a denial of service (DoS) attack.

8) Use-after-free (CVE-ID: CVE-2025-39982)

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 hci_conn_complete_evt() and le_conn_complete_evt() functions in net/bluetooth/hci_event.c. A local user can escalate privileges on the system.

9) Use-after-free (CVE-ID: CVE-2025-40176)

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 tls_decrypt_sg() function in net/tls/tls_sw.c. A local user can escalate privileges on the system.

10) Use-after-free (CVE-ID: CVE-2025-68287)

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 dwc3_gadget_giveback() function in drivers/usb/dwc3/gadget.c. A local user can escalate privileges on the system.

11) Use-after-free (CVE-ID: CVE-2025-68285)

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 monmap_show() and osdmap_show() functions in net/ceph/debugfs.c. A local user can escalate privileges on the system.

Remediation

Install update from vendor's website.

References

• https://access.redhat.com/errata/RHSA-2026:0534