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CVE-2022-41849

Published: 30 September 2022

drivers/video/fbdev/smscufx.c in the Linux kernel through 5.19.12 has a race condition and resultant use-after-free if a physically proximate attacker removes a USB device while calling open(), aka a race condition between ufx_ops_open and ufx_usb_disconnect.

From the Ubuntu Security Team

It was discovered that a race condition existed in the SMSC UFX USB driver implementation in the Linux kernel, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Notes

AuthorNote
sbeattie
requires removing the USB device which usually requires
physical proximity, therefore marking the priority of this issue as
low.

Priority

Low

Cvss 3 Severity Score

4.2

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-204.215)
focal
Released (5.4.0-139.156)
jammy
Released (5.15.0-60.66)
kinetic
Released (5.19.0-28.29)
trusty Ignored
(was needed ESM criteria)
upstream
Released (6.1~rc1)
xenial Ignored
(was needed ESM criteria)
Patches:
Introduced by

3c8a63e22a0802fd56380f6ab305b419f18eb6f5

Fixed by 5610bcfe8693c02e2e4c8b31427f1bdbdecc839c
linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1150.163)
focal
Released (5.4.0-1096.104)
jammy
Released (5.15.0-1030.34)
kinetic
Released (5.19.0-1016.17)
trusty Ignored
(was needed ESM criteria)
upstream
Released (6.1~rc1)
xenial Ignored
(was needed ESM criteria)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.3)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-aws-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-aws-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-aws-5.13)
xenial Does not exist

linux-aws-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-aws-5.15)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-aws-5.15)
xenial Does not exist

linux-aws-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1030.34~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-aws-5.4)
xenial Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1096.104~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-aws-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-aws-5.11)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-aws-5.11)
xenial Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Pending
(4.15.0-1151.164~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
focal
Released (5.4.0-1103.109)
jammy
Released (5.15.0-1033.40)
kinetic
Released (5.19.0-1016.17)
trusty
Released (4.15.0-1162.177~14.04.1)
upstream
Released (6.1~rc1)
xenial
Released (4.15.0-1162.177~16.04.1)
linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1161.176)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-azure-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-azure-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-azure-5.13)
xenial Does not exist

linux-azure-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-azure-5.15)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-azure-5.15)
xenial Does not exist

linux-azure-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1033.40~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-azure-5.19
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Not vulnerable
(5.19.0-1020.21~22.04.1)
kinetic Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-azure-5.4)
xenial Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1103.109~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-azure-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-azure-5.11)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-azure-5.11)
xenial Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-azure-fde
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1103.109)
jammy
Released (5.15.0-1033.40)
trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-azure-fde-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1033.40~20.04.1)
jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-bluefield
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1058.64)
jammy Pending

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-dell300x
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1060.65)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-fips
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

trusty Ignored
(out of standard support)
upstream
Released (6.1~rc1)
xenial Ignored
(out of standard support)
linux-gcp
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.3)
focal
Released (5.4.0-1100.109)
jammy
Released (5.15.0-1029.36)
kinetic
Released (5.19.0-1014.15)
trusty Does not exist

upstream
Released (6.1~rc1)
xenial
Released (4.15.0-1146.162~16.04.1)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1145.161)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-gcp-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-gcp-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gcp-5.13)
xenial Does not exist

linux-gcp-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-gcp-5.15)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gcp-5.15)
xenial Does not exist

linux-gcp-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1029.36~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gcp-5.4)
xenial Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1100.109~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-gcp-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-gcp-5.11)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gcp-5.11)
xenial Does not exist

linux-gke
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1094.101)
jammy
Released (5.15.0-1027.32)
kinetic Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Ignored
(reached end of standard support)
linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gke-5.3)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-gke-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1027.32~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gke-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gke-5.4)
xenial Does not exist

linux-gke-5.4
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-gkeop
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1064.68)
jammy
Released (5.15.0-1015.19)
trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial
Released (4.15.0-206.217~16.04.1)
linux-hwe-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-hwe-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-hwe-5.13)
xenial Does not exist

linux-hwe-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-hwe-5.15)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-hwe-5.15)
xenial Does not exist

linux-hwe-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-60.66~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-hwe-5.19
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Not vulnerable
(5.19.0-28.29~22.04.1)
kinetic Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-139.156~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-hwe-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-hwe-5.11)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-hwe-5.11)
xenial Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-hwe-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Ignored
(superseded by linux-hwe)
linux-ibm
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1044.49)
jammy
Released (5.15.0-1025.28)
kinetic
Released (5.19.0-1014.15)
trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-ibm-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1044.49~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-intel-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-intel-iotg
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy
Released (5.15.0-1025.30)
kinetic Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-intel-iotg-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Pending
(5.15.0-1025.30~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1135.140)
focal
Released (5.4.0-1086.92)
jammy
Released (5.15.0-1028.33)
kinetic
Released (5.19.0-1015.16)
trusty Does not exist

upstream
Released (6.1~rc1)
xenial Ignored
(was needed ESM criteria)
linux-lowlatency
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy
Released (5.15.0-60.66)
kinetic
Released (5.19.0-1014.15)
trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-lowlatency-hwe-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-60.66~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-lowlatency-hwe-5.19
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Not vulnerable
(5.19.0-1017.18~22.04.1)
kinetic Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

trusty Ignored
(was needed ESM criteria)
upstream
Released (6.1~rc1)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Ignored
(superseded by linux-hwe)
linux-oem-5.10
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-oem-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-oem-5.14)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-oem-5.14)
xenial Does not exist

linux-oem-5.14
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Needed

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-oem-5.17
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Needed

kinetic Ignored
(was needs-triage now end-of-life)
trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-oem-6.0
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Pending
(6.0.0-1007.7)
kinetic Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-oem-6.1
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Not vulnerable
(6.1.0-1004.4)
kinetic Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1114.125)
focal
Released (5.4.0-1093.102)
jammy
Released (5.15.0-1029.35)
kinetic
Released (5.19.0-1014.16)
trusty Does not exist

upstream
Released (6.1~rc1)
xenial Pending
(4.15.0-1115.126~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-oracle-5.3)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-oracle-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-oracle-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-oracle-5.13)
xenial Does not exist

linux-oracle-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-oracle-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1029.35~20.04.1)
jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-oracle-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-oracle-5.4)
xenial Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1093.102~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-oracle-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-oracle-5.11)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-oracle-5.11)
xenial Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1080.91)
jammy
Released (5.15.0-1024.26)
kinetic
Released (5.19.0-1011.18)
trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1080.91~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1127.135)
focal Ignored
(replaced by linux-raspi)
jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Ignored
(end of standard support)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-raspi-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-raspi2-5.4)
xenial Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-riscv-5.8)
jammy Ignored
(was needs-triage now end-of-life)
kinetic Pending
(5.19.0-1011.12)
trusty Does not exist

upstream
Released (6.1~rc1)
xenial Does not exist

linux-riscv-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-riscv-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-riscv-5.13)
xenial Does not exist

linux-riscv-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-riscv-5.11)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-riscv-5.11)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1145.155)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (6.1~rc1)
xenial Ignored
(end of standard support)

Severity score breakdown

Parameter Value
Base score 4.2
Attack vector Physical
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H