SB20260202101 - Ubuntu update for linux
Published: February 2, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Race condition (CVE-ID: CVE-2025-38352)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition within the run_posix_cpu_timers() function in kernel/time/posix-cpu-timers.c. A local user can escalate privileges on the system.
Note, the vulnerability is being actively exploited in the wild against Android devices.
2) Buffer overflow (CVE-ID: CVE-2024-57850)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the jffs2_rtime_decompress() function in fs/jffs2/compr_rtime.c. A local user can escalate privileges on the system.
3) Out-of-bounds write (CVE-ID: CVE-2024-53197)
The vulnerability allows a local user to compromise the affected system.
The vulnerability exists due to an out-of-bounds write error within the snd_usb_create_quirk(), snd_usb_extigy_boot_quirk(), mbox2_setup_48_24_magic() and snd_usb_mbox2_boot_quirk() functions in sound/usb/quirks.c. A local user can trigger an out-of-bounds write and execute arbitrary code on the system.
Note, the vulnerability is being actively exploited against Android devices.
4) Use-after-free (CVE-ID: CVE-2024-26689)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the __prep_cap() and __send_cap() functions in fs/ceph/caps.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.