CVE-2024-38618

CVE Details

Release Date:2024-06-19

Description


In the Linux kernel, the following vulnerability has been resolved:\nALSA: timer: Set lower bound of start tick time\nCurrently ALSA timer doesn't have the lower limit of the start tick\ntime, and it allows a very small size, e.g. 1 tick with 1ns resolution\nfor hrtimer. Such a situation may lead to an unexpected RCU stall,\nwhere the callback repeatedly queuing the expire update, as reported\nby fuzzer.\nThis patch introduces a sanity check of the timer start tick time, so\nthat the system returns an error when a too small start size is set.\nAs of this patch, the lower limit is hard-coded to 100us, which is\nsmall enough but can still work somehow.

See more information about CVE-2024-38618 from MITRE CVE dictionary and NIST NVD


CVSS Scoring


NOTE: The following CVSS v3.1 metrics and score provided are preliminary and subject to review.

Base Score: 4.4 CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack Vector: Local network Attack Complexity: Low
Privileges Required: High User Interaction: None
Scope: Unchanged Confidentiality Impact: None
Integrity Impact: None Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 7 (kernel-uek)ELSA-2024-125812024-08-12
Oracle Linux version 7 (kernel-uek)ELSA-2024-126112024-09-11
Oracle Linux version 7 (kernel-uek-container)ELSA-2024-125852024-08-12
Oracle Linux version 8 (kernel-uek)ELSA-2024-125812024-08-12
Oracle Linux version 8 (kernel-uek-container)ELSA-2024-125842024-08-12
Oracle Linux version 9 (kernel)ELSA-2024-93152024-11-14


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