5.5

CVE-2022-49190: kernel/resource: fix kfree() of bootmem memory again

Modified
AliasesUBUNTU-CVE-2022-49190DEBIAN-CVE-2022-49190
Published 26-02-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-49190 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.27%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
DLA-4178-1SUSE-SU-2025:01983-1

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: kernel/resource: fix kfree() of bootmem memory again Since commit ebff7d8f270d ("mem hotunplug: fix kfree() of bootmem memory"), we could get a resource allocated during boot via alloc_resource(). And it's required to release the resource using free_resource(). Howerver, many people use kfree directly which will result in kernel BUG. In order to fix this without fixing every call site, just leak a couple of bytes in such corner case.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.27% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu107 products
  • linuxAll versions (No fix recorded) | < 5.15.0-37.39
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1011.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ ebff7d8f270d045338d9f4796014f4db429a17f9, < 3379a60f6bb4afcd9c456e340ac525ae649d3ce7 | ≥ ebff7d8f270d045338d9f4796014f4db429a17f9, < a9e88c2618d228d7a4e7e515cf30dc0d0d813f27 | ≥ ebff7d8f270d045338d9f4796014f4db429a17f9, < d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8 | ≥ ebff7d8f270d045338d9f4796014f4db429a17f9, < ab86020070999e758ce2e60c4348f20bf7ddba56 | ≥ ebff7d8f270d045338d9f4796014f4db429a17f9, < 0cbcc92917c5de80f15c24d033566539ad696892 | 3.10
  • linux_kernel≥ 3.10, < 5.15.33 | ≥ 5.16, < 5.16.19 | ≥ 5.17, < 5.17.2
Debian1 product
  • linux< 5.17.3-1

3 vendors · 110 products

References

10 links