SB2025071871 - openEuler 20.03 LTS SP4 update for kernel

Description

This security bulletin contains information about 5 secuirty vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2025-38000)

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

The vulnerability exists due to a use-after-free error within the hfsc_enqueue() function in net/sched/sch_hfsc.c. A local user can escalate privileges on the system.

2) Use of uninitialized resource (CVE-ID: CVE-2025-38229)

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

The vulnerability exists due to use of uninitialized resource within the cxusb_gpio_tuner() function in drivers/media/usb/dvb-usb/cxusb.c. A local user can perform a denial of service (DoS) attack.

3) Resource management error (CVE-ID: CVE-2025-38285)

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

The vulnerability exists due to resource management error within the get_bpf_raw_tp_regs() function in kernel/trace/bpf_trace.c. A local user can perform a denial of service (DoS) attack.

4) Incorrect calculation (CVE-ID: CVE-2025-38320)

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

The vulnerability exists due to incorrect calculation within the regs_get_kernel_stack_nth() function in arch/arm64/kernel/ptrace.c. A local user can perform a denial of service (DoS) attack.

5) Use-after-free (CVE-ID: CVE-2025-38346)

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

The vulnerability exists due to a use-after-free error within the ftrace_release_mod() function in kernel/trace/ftrace.c. A local user can escalate privileges on the system.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-1871