CVE-2022-49944

published 2025-06-18

CVE-2022-49944: In the Linux kernel, the following vulnerability has been resolved: Revert "usb: typec: ucsi: add a common function ucsi_unregister_connectors()" The recent…

Priority P4 18 medium 5.5 CVSS 3.1

AV L AC L PR L UI N S U C N I N A H

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

Revert "usb: typec: ucsi: add a common function ucsi_unregister_connectors()"

The recent commit 87d0e2f41b8c ("usb: typec: ucsi: add a common
function ucsi_unregister_connectors()") introduced a regression that
caused NULL dereference at reading the power supply sysfs. It's a
stale sysfs entry that should have been removed but remains with NULL
ops. The commit changed the error handling to skip the entries after
a NULL con->wq, and this leaves the power device unreleased.

For addressing the regression, the straight revert is applied here.
Further code improvements can be done from the scratch again.

Affected

11 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 6.0.2-1 (bookworm)	linux 6.0.2-1 (bookworm)
linux	linux	—	—
linux	linux	>= 87d0e2f41b8cc2018499be4e8003fa8c09b6f2fb < 3d4044c9e6d2e3f11f1f8b5e0ee8647d3eb1afad	3d4044c9e6d2e3f11f1f8b5e0ee8647d3eb1afad
linux	linux	>= 87d0e2f41b8cc2018499be4e8003fa8c09b6f2fb < 5f73aa2cf8bef4a39baa1591c3144ede4788826e	5f73aa2cf8bef4a39baa1591c3144ede4788826e
linux	linux_kernel	—	—
linux	linux_kernel	—	—
linux	linux_kernel	—	—
linux	linux_kernel	>= 0 < 6.0.2-1	6.0.2-1
linux	linux_kernel	>= 0 < 6.0.2-1	6.0.2-1
linux	linux_kernel	>= 0 < 6.0.2-1	6.0.2-1
linux	linux_kernel	>= 5.19 < 5.19.8	5.19.8

CVSS provenance

nvd v3.1 5.5 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

osv 5.5 MEDIUM

vendor_debian 5.5 MEDIUM

vendor_redhat 5.5 MEDIUM

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