SB2025032915 - openEuler 22.03 LTS SP4 update for kernel

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2022-49266)

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

The vulnerability exists due to memory corruption within the blkcg_iolatency_done_bio() function in block/blk-iolatency.c. A local user can perform a denial of service (DoS) attack.

2) Out-of-bounds read (CVE-ID: CVE-2022-49444)

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

3) Use-after-free (CVE-ID: CVE-2022-49711)

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

The vulnerability exists due to a use-after-free error within the fsl_mc_bus_remove() function in drivers/bus/fsl-mc/fsl-mc-bus.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-2025-1338