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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2021-46932
HistoryFeb 27, 2024 - 10:15 a.m.

CVE-2021-46932

2024-02-2710:15:07
Debian Security Bug Tracker
security-tracker.debian.org
9
linux kernel
appletouch
input initialization
vulnerability
syzbot
work initialization
input device

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

7 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

5.1%

In the Linux kernel, the following vulnerability has been resolved: Input: appletouch - initialize work before device registration Syzbot has reported warning in __flush_work(). This warning is caused by work->func == NULL, which means missing work initialization. This may happen, since input_dev->close() calls cancel_work_sync(&dev->work), but dev->work initalization happens after input_register_device() call. So this patch moves dev->work initialization before registering input device

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

7 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

5.1%