5.5

CVE-2022-48730: dma-buf: heaps: Fix potential spectre v1 gadget

Analyzed
AliasesUBUNTU-CVE-2022-48730DEBIAN-CVE-2022-48730
Published 20-06-2024Last modified 11-05-2026

Vulnerability summary

CVE-2022-48730 is a medium (CVSS 5.5) Observable Discrepancy vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.4% 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
0.26%
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 9 · Related 9
SUSE-SU-2024:2362-1SUSE-SU-2024:2372-1SUSE-SU-2024:2384-1SUSE-SU-2024:2394-1SUSE-SU-2024:2894-1SUSE-SU-2024:2902-1

Timeline

  1. 20-06-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: dma-buf: heaps: Fix potential spectre v1 gadget It appears like nr could be a Spectre v1 gadget as it's supplied by a user and used as an array index. Prevent the contents of kernel memory from being leaked to userspace via speculative execution by using array_index_nospec. [sumits: added fixes and cc: stable tags]

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.26%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.26% 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.

Ubuntu68 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ c02a81fba74fe3488ad6b08bfb5a1329005418f8, < 5d40f1bdad3dd1a177f21a90ad4353c1ed40ba3a | ≥ c02a81fba74fe3488ad6b08bfb5a1329005418f8, < 24f8e12d965b24f8aea762589e0e9fe2025c005e | ≥ c02a81fba74fe3488ad6b08bfb5a1329005418f8, < cc8f7940d9c2d45f67b3d1a2f2b7a829ca561bed | ≥ c02a81fba74fe3488ad6b08bfb5a1329005418f8, < 92c4cfaee6872038563c5b6f2e8e613f9d84d47d | 5.6
  • linux_kernel≥ 5.6, < 5.10.99 | ≥ 5.11, < 5.15.22 | ≥ 5.16, < 5.16.8 | 5.17:rc1 | 5.17:rc2
Debian1 product
  • linux< 5.16.10-1

3 vendors · 71 products

References

8 links