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nvd416baaa9-dc9f-4396-8d5f-8c081fb06d67NVD:CVE-2024-40977
HistoryJul 12, 2024 - 1:15 p.m.

CVE-2024-40977

2024-07-1213:15:19
CWE-667
416baaa9-dc9f-4396-8d5f-8c081fb06d67
web.nvd.nist.gov
2
linux kernel
mt7921s
wifi
vulnerability fix
chip recovery
deadlock

CVSS3

5.5

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

EPSS

0

Percentile

5.1%

In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7921s: fix potential hung tasks during chip recovery

During chip recovery (e.g. chip reset), there is a possible situation that
kernel worker reset_work is holding the lock and waiting for kernel thread
stat_worker to be parked, while stat_worker is waiting for the release of
the same lock.
It causes a deadlock resulting in the dumping of hung tasks messages and
possible rebooting of the device.

This patch prevents the execution of stat_worker during the chip recovery.

Affected configurations

Nvd
Node
linuxlinux_kernelRange<6.1.96
OR
linuxlinux_kernelRange6.26.6.36
OR
linuxlinux_kernelRange6.76.9.7
VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS3

5.5

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

EPSS

0

Percentile

5.1%