SB2025101786 - openEuler 22.03 LTS SP4 update for kernel

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2022-50410)

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

The vulnerability exists due to memory corruption within the nfsd_proc_read() function in fs/nfsd/nfsproc.c. A local user can escalate privileges on the system.

2) Out-of-bounds read (CVE-ID: CVE-2025-39683)

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 trace_get_user() function in kernel/trace/trace.c. A local user can perform a denial of service (DoS) attack.

3) NULL pointer dereference (CVE-ID: CVE-2025-39850)

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

The vulnerability exists due to NULL pointer dereference within the arp_reduce() and neigh_reduce() functions in drivers/net/vxlan/vxlan_core.c. A local user can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-2470