In mmc_blk_read_single of block.c, there is a possible way to read kernel heap memory due to uninitialized data
Published May 10, 2022
4.6
MEDIUMCVSS 3.1
EPSS 0.38%
Description
In mmc_blk_read_single of block.c, there is a possible way to read kernel heap memory due to uninitialized data. This could lead to local information disclosure if reading from an SD card that triggers errors, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-216481035References: Upstream kernel
Affected products
- Vendor n/a Product Android Defaultn/a
- Version Android kernelStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Android | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.38% (0.00379) | 29.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.36% (0.00357) | 27.35th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00036) | 7.76th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00045) | 17.96th | v3 (v2023.03.01) |
| May 11, 2024 | 0.04% (0.00045) | 14.83th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00046) | 12.82th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.04% (0.01036) | 43.31th | v2 (v2022.01.01) |
| Oct 22, 2022 | 1.04% (0.01036) | 41.82th | v2 (v2022.01.01) |
| May 17, 2022 | 1.04% (0.01036) | 39.79th | v2 (v2022.01.01) |
| May 11, 2022 | 2.56% (0.02559) | 80.41th | v2 (v2022.01.01) |
References (1)
- https://source.android.com/security/bulletin/2022-05-01 x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://source.android.com/security/bulletin/2022-05-01 | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.