CVE-2021-47153

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

i2c: i801: Don't generate an interrupt on bus reset

Now that the i2c-i801 driver supports interrupts, setting the KILL bit
in a attempt to recover from a timed out transaction triggers an
interrupt. Unfortunately, the interrupt handler (i801_isr) is not
prepared for this situation and will try to process the interrupt as
if it was signaling the end of a successful transaction. In the case
of a block transaction, this can result in an out-of-range memory
access.

This condition was reproduced several times by syzbot:
https://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e
https://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e
https://syzkaller.appspot.com/bug?extid=c8ff0b6d6c73d81b610e
https://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb
https://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a
https://syzkaller.appspot.com/bug?extid=b4d3fd1dfd53e90afd79

So disable interrupts while trying to reset the bus. Interrupts will
be enabled again for the following transaction.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.1 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
LinuxCNA
---
---
CISA-ADPADP
6 MEDIUM
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
VendorProductVersion
linuxlinux_kernel
3.6 ≤
𝑥
< 4.4.271
linuxlinux_kernel
4.5 ≤
𝑥
< 4.9.271
linuxlinux_kernel
4.10 ≤
𝑥
< 4.14.235
linuxlinux_kernel
4.15 ≤
𝑥
< 4.19.193
linuxlinux_kernel
4.20 ≤
𝑥
< 5.4.124
linuxlinux_kernel
5.5 ≤
𝑥
< 5.10.42
linuxlinux_kernel
5.11 ≤
𝑥
< 5.12.9
linuxlinux_kernel
5.13:rc1
linuxlinux_kernel
5.13:rc2
linuxlinux_kernel
5.13:rc3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.226-1
fixed
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
sid
6.11.5-1
fixed
trixie
6.11.5-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
noble
not-affected
mantic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-80.90
released
bionic
pending
xenial
ignored
trusty
ignored
linux-allwinner-5.19
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-aws
noble
not-affected
mantic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-1054.57
released
bionic
pending
xenial
ignored
trusty
ignored
linux-aws-5.0
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
linux-aws-5.11
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-aws-5.13
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-aws-5.15
noble
dne
mantic
dne
jammy
dne
focal
not-affected
linux-aws-5.19
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-aws-5.3
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
linux-aws-5.4
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
pending
linux-aws-5.8
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-aws-6.2
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-aws-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
linux-aws-fips
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws-hwe
noble
dne
mantic
dne
jammy
dne
focal
dne
xenial
Fixed 4.15.0-1109.116~16.04.1
released
linux-azure
noble
not-affected
mantic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-1055.57
released
bionic
ignored
xenial
Fixed 4.15.0-1121.134~16.04.1
released
trusty
Fixed 4.15.0-1121.134~14.04.1
released
linux-azure-4.15
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
pending
linux-azure-5.11
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-azure-5.13
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-azure-5.15
noble
dne
mantic
dne
jammy
dne
focal
not-affected
linux-azure-5.19
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-azure-5.3
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
linux-azure-5.4
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
pending
linux-azure-5.8
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-azure-6.2
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-azure-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
linux-azure-edge
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
linux-azure-fde
noble
dne
mantic
dne
jammy
not-affected
focal
ignored
linux-azure-fde-5.15
noble
dne
mantic
dne
jammy
dne
focal
not-affected
linux-azure-fde-5.19
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-azure-fde-6.2
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-azure-fips
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-bluefield
noble
dne
mantic
dne
jammy
dne
focal
Fixed 5.4.0-1016.19
released
linux-fips
noble
dne
mantic
dne
jammy
dne
focal
dne
linux-gcp
noble
not-affected
mantic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-1049.53
released
bionic
ignored
xenial
Fixed 4.15.0-1106.120~16.04.1
released
linux-gcp-4.15
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
pending
linux-gcp-5.11
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-gcp-5.13
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-gcp-5.15
noble
dne
mantic
dne
jammy
dne
focal
not-affected
linux-gcp-5.19
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-gcp-5.3
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
linux-gcp-5.4
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
pending
linux-gcp-5.8
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-gcp-6.2
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-gcp-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
linux-gcp-fips
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gke
noble
not-affected
mantic
dne
jammy
not-affected
focal
ignored
linux-gke-4.15
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
linux-gke-5.15
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-gke-5.4
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
linux-gkeop
noble
dne
mantic
dne
jammy
not-affected
focal
Fixed 5.4.0-1021.22
released
linux-gkeop-5.15
noble
dne
mantic
dne
jammy
dne
focal
not-affected
linux-gkeop-5.4
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
linux-hwe
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
Fixed 4.15.0-151.157~16.04.1
released
linux-hwe-5.11
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-hwe-5.13
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-hwe-5.15
noble
dne
mantic
dne
jammy
dne
focal
not-affected
linux-hwe-5.19
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-hwe-5.4
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
pending
linux-hwe-5.8
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-hwe-6.2
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-hwe-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
linux-hwe-6.8
noble
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe-edge
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
ignored
linux-ibm
noble
not-affected
mantic
ignored
jammy
not-affected
focal
not-affected
linux-ibm-5.15
noble
dne
mantic
dne
jammy
dne
focal
not-affected
linux-ibm-5.4
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
not-affected
linux-intel
noble
not-affected
mantic
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-intel-5.13
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-intel-iot-realtime
noble
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-intel-iotg
noble
dne
mantic
dne
jammy
not-affected
focal
dne
linux-intel-iotg-5.15
noble
dne
mantic
dne
jammy
dne
focal
not-affected
linux-iot
noble
dne
mantic
dne
jammy
dne
focal
not-affected
linux-kvm
noble
dne
mantic
dne
jammy
not-affected
focal
Fixed 5.4.0-1044.46
released
bionic
pending
xenial
ignored
linux-laptop
noble
dne
mantic
not-affected
jammy
dne
focal
dne
linux-lowlatency
noble
not-affected
mantic
not-affected
jammy
not-affected
focal
dne
linux-lowlatency-hwe-5.15
noble
dne
mantic
dne
jammy
dne
focal
not-affected
linux-lowlatency-hwe-5.19
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-lowlatency-hwe-6.2
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-lowlatency-hwe-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
linux-lowlatency-hwe-6.8
noble
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-xenial
noble
dne
mantic
dne
jammy
dne
focal
dne
trusty
ignored
linux-nvidia
noble
not-affected
mantic
dne
jammy
not-affected
focal
dne
linux-nvidia-6.2
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-nvidia-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-6.8
noble
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-lowlatency
noble
not-affected
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
linux-oem-5.10
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-oem-5.13
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-oem-5.14
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-oem-5.17
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-oem-5.6
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-oem-6.0
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-oem-6.1
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-oem-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
linux-oem-6.8
noble
not-affected
mantic
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oracle
noble
not-affected
mantic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-1052.56
released
bionic
pending
xenial
Fixed 4.15.0-1078.86~16.04.1
released
linux-oracle-5.0
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
linux-oracle-5.11
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-oracle-5.13
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-oracle-5.15
noble
dne
mantic
dne
jammy
dne
focal
not-affected
linux-oracle-5.3
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
ignored
linux-oracle-5.4
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
pending
linux-oracle-5.8
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-oracle-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
linux-raspi
noble
not-affected
mantic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-1041.45
released
linux-raspi-5.4
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
pending
linux-raspi-realtime
noble
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-raspi2
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-realtime
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv
noble
not-affected
mantic
not-affected
jammy
ignored
focal
ignored
linux-riscv-5.11
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-riscv-5.15
noble
dne
mantic
dne
jammy
dne
focal
not-affected
linux-riscv-5.19
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-riscv-5.8
noble
dne
mantic
dne
jammy
dne
focal
ignored
linux-riscv-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
linux-riscv-6.8
noble
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive
noble
dne
mantic
not-affected
jammy
dne
focal
dne
linux-starfive-5.19
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-starfive-6.2
noble
dne
mantic
dne
jammy
ignored
focal
dne
linux-starfive-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
linux-xilinx-zynqmp
noble
dne
mantic
dne
jammy
not-affected
focal
not-affected