CVE-2024-46745

MEDIUM

Linux Kernel < 4.19.322, 4.20.0-6.10.10 DoS via uinput Slot Allocation

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: Input: uinput - reject requests with unreasonable number of slots When exercising uinput interface syzkaller may try setting up device with a really large number of slots, which causes memory allocation failure in input_mt_init_slots(). While this allocation failure is handled properly and request is rejected, it results in syzkaller reports. Additionally, such request may put undue burden on the system which will try to free a lot of memory for a bogus request. Fix it by limiting allowed number of slots to 100. This can easily be extended if we see devices that can track more than 100 contacts.

Scores

CVSS v3 5.5
EPSS 0.0028
EPSS Percentile 19.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (27)
linux/Kernel 2.6.36 - 4.19.322linux
linux/Kernel 4.20.0 - 5.4.284linux
linux/Kernel 5.11.0 - 5.15.167linux
linux/Kernel 5.16.0 - 6.1.110linux
linux/Kernel 5.5.0 - 5.10.226linux
linux/Kernel 6.2.0 - 6.6.51linux
linux/Kernel 6.7.0 - 6.10.10linux
Linux/Linux < 2.6.36
Linux/Linux 2.6.36
Linux/Linux 38e7afe96c7c0ad900824911c61fdb04078033dc - 206f533a0a7c683982af473079c4111f4a0f9f5e
... and 17 more
Published Sep 18, 2024
Tracked Since Feb 18, 2026