SB2025042543 - openEuler 20.03 LTS SP4 update for kernel

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2022-49493)

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

The vulnerability exists due to a use-after-free error within the rt5645_i2c_remove() function in sound/soc/codecs/rt5645.c. A local user can escalate privileges on the system.

2) NULL pointer dereference (CVE-ID: CVE-2022-49538)

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

The vulnerability exists due to NULL pointer dereference within the snd_jack_dev_disconnect(), snd_jack_dev_register(), snd_jack_new(), EXPORT_SYMBOL() and snd_jack_report() functions in sound/core/jack.c. A local user can perform a denial of service (DoS) attack.

3) Input validation error (CVE-ID: CVE-2025-21863)

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

The vulnerability exists due to improper input validation within the io_init_req() function in io_uring/io_uring.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-2025-1447