CVE-2022-49411

EUVD-2022-54818

26.02.2025, 07:01

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

bfq: Make sure bfqg for which we are queueing requests is online

Bios queued into BFQ IO scheduler can be associated with a cgroup that
was already offlined. This may then cause insertion of this bfq_group
into a service tree. But this bfq_group will get freed as soon as last
bio associated with it is completed leading to use after free issues for
service tree users. Fix the problem by making sure we always operate on
online bfq_group. If the bfq_group associated with the bio is not
online, we pick the first online parent.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	7.8 HIGH	LOCAL	LOW	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 24%

Affected Products (NVD)

Vendor	Product	Version
linux	linux_kernel	4.12 ≤ 𝑥 < 5.4.198
linux	linux_kernel	5.5 ≤ 𝑥 < 5.10.121
linux	linux_kernel	5.11 ≤ 𝑥 < 5.15.46
linux	linux_kernel	5.16 ≤ 𝑥 < 5.17.14
linux	linux_kernel	5.18 ≤ 𝑥 < 5.18.3

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

linux

bookworm	6.1.123-1 fixed
bookworm (security)	6.1.128-1 fixed
bullseye	5.10.223-1 fixed
bullseye (security)	5.10.234-1 fixed
sid	6.12.16-1 fixed
trixie	6.12.12-1 fixed

openSUSE / SLES Releases

openSUSE Product

Release

cluster-md-kmp-default

suse enterprise server 12 SP5	4.12.14-122.258.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

dlm-kmp-default

suse enterprise server 12 SP5	4.12.14-122.258.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

gfs2-kmp-default

suse enterprise server 12 SP5	4.12.14-122.258.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

kernel-64kb

suse enterprise server 15 SP3	5.3.18-150300.59.201.1 fixed
suse enterprise server 15 SP4	5.14.21-150400.24.158.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

kernel-default

suse enterprise server 12 SP5	4.12.14-122.258.1 fixed
suse enterprise server 15 SP3	5.3.18-150300.59.201.1 fixed
suse enterprise server 15 SP4	5.14.21-150400.24.158.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

kernel-default-base

suse enterprise server 12 SP5	4.12.14-122.258.1 fixed
suse enterprise server 15 SP3	5.3.18-150300.59.201.1.150300.18.120.1 fixed
suse enterprise server 15 SP4	5.14.21-150400.24.158.1.150400.24.78.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1.150500.6.47.1 fixed

kernel-default-man

suse enterprise server 12 SP5

4.12.14-122.258.1

fixed

kernel-docs

suse enterprise server 15 SP3	5.3.18-150300.59.201.1 fixed
suse enterprise server 15 SP4	5.14.21-150400.24.158.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

kernel-macros

suse enterprise server 12 SP5	4.12.14-122.258.1 fixed
suse enterprise server 15 SP3	5.3.18-150300.59.201.1 fixed
suse enterprise server 15 SP4	5.14.21-150400.24.158.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

kernel-obs-build

suse enterprise server 15 SP3	5.3.18-150300.59.201.1 fixed
suse enterprise server 15 SP4	5.14.21-150400.24.158.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

kernel-preempt

suse enterprise server 15 SP3

5.3.18-150300.59.201.1

fixed

kernel-source

suse enterprise server 12 SP5	4.12.14-122.258.1 fixed
suse enterprise server 15 SP3	5.3.18-150300.59.201.1 fixed
suse enterprise server 15 SP4	5.14.21-150400.24.158.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

kernel-syms

suse enterprise server 12 SP5	4.12.14-122.258.1 fixed
suse enterprise server 15 SP3	5.3.18-150300.59.201.1 fixed
suse enterprise server 15 SP4	5.14.21-150400.24.158.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

kernel-zfcpdump

suse enterprise server 15 SP3	5.3.18-150300.59.201.1 fixed
suse enterprise server 15 SP4	5.14.21-150400.24.158.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

ocfs2-kmp-default

suse enterprise server 12 SP5	4.12.14-122.258.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

reiserfs-kmp-default

suse enterprise server 15 SP3	5.3.18-150300.59.201.1 fixed
suse enterprise server 15 SP4	5.14.21-150400.24.158.1 fixed
suse enterprise server 15 SP5	5.14.21-150500.55.100.1 fixed

Red Hat Enterprise Linux Releases

Red Hat Product

Release

bpftool

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-abi-stablelists

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-core

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-debug

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-debug-core

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-debug-devel

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-debug-devel-matched

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-debug-modules

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-debug-modules-extra

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-devel

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-devel-matched

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-doc

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-modules

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-modules-extra

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-tools

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-tools-libs

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-tools-libs-devel

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-zfcpdump

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-zfcpdump-core

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-zfcpdump-devel

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-zfcpdump-devel-matched

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-zfcpdump-modules

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

kernel-zfcpdump-modules-extra

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

perf

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

python3-perf

RHEL 9

0:5.14.0-162.6.1.el9_1

fixed

Common Weakness Enumeration

CWE-416 - Use After Free
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

References

https://git.kernel.org/stable/c/075a53b78b815301f8d3dd1ee2cd99554e34f0dd

https://git.kernel.org/stable/c/51f724bffa3403a5236597e6b75df7329c1ec6e9

https://git.kernel.org/stable/c/6ee0868b0c3ccead5907685fcdcdd0c08dfe4b0b

https://git.kernel.org/stable/c/7781c38552e6cc54ed8e9040279561340516b881

https://git.kernel.org/stable/c/97bd6c56bdcb41079e488e31df56809e3b2ce628

https://git.kernel.org/stable/c/ccddf8cd411c1800863ed357064e56ceffd356bb