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CVE-2022-49286

15
FAUCET Score

CVE-2022-49286 is a NULL pointer dereference vulnerability in the Linux kernel's Trusted Platform Module (TPM) driver, specifically affecting the tpm-space.c component. This flaw arises from a race condition during the removal of TPM space, where the chip can be deallocated before flushing operations are complete, leading to a system crash. Rated Medium severity with a CVSS score of 4.7, it requires local access and high attack complexity to achieve a denial-of-service. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.12, < 5.4.188CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.109CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.32CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.16.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
5.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.17:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.7MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.23%
Probability of exploitation in next 30 days
EPSS Percentile
14.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0023 is in the 57th percentile among its peer group of 1,297 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49286Moderate

kernel: tpm: use try_get_ops() in tpm-space.c

Feb 26, 2025

References

git.kernel.org / stable/c/476ddd23f818fb94cf86fb5617f3bb9a7c92113d
Patch
git.kernel.org / stable/c/5b1d2561a03e534064b51c50c774657833d3d2cf
Patch
git.kernel.org / stable/c/95193d12f10a8a088843b25e0f5fe1d83ec6b079
Patch
git.kernel.org / stable/c/ba84f9a48366dcc3cdef978599433efe101dd5bd
Patch
git.kernel.org / stable/c/eda1662cce964c8a65bb86321f8d9cfa6e9ceaab
Patch
git.kernel.org / stable/c/fb5abce6b2bb5cb3d628aaa63fa821da8c4600f9
Patch