CVE-2026-53152: linux NULL Pointer Dereference
Vulnerability summary
CVE-2026-53152 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 18 · Related 18Timeline
- 25-06-2026PublishedVulnerability first disclosed.
Description
In the Linux kernel, the following vulnerability has been resolved: mmc: dw_mmc-rockchip: Add missing private data for very old controllers The really old controllers (rk2928, rk3066, rk3188) do not support UHS speeds at all, and thus never handled phase data. For that reason it never had a parse_dt callback and no driver private data at all. Commit ff6f0286c896 ("mmc: dw_mmc-rockchip: Add memory clock auto-gating support") makes the private data sort of mandatory, because the init function checks whether phases are configured internally or through the clock controller. This results in the old SoCs then experiencing NULL-pointer dereferences when they try to access that private-data struct. While we could have if (priv) conditionals in all places, it's way less cluttery to just give the old types their private-data struct.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.12%
Chance of exploitation in the next 30 days
Percentile
2%
Versus all other CVEs
30-day change
-0.04 pp
From 0.16% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu110 products
- linux< 7.0.0-31.31
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 7.0.0-1012.12
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Chainguard11 products
- linux-aws-6.12< 6.12.95-r0
- linux-aws-6.18< 6.18.38-r0
- linux-azure-6.18< 6.18.38-r0
- linux-gcp-6.18< 6.18.38-r0
- linux-gcp-6.18-bootc-boot-installed< 6.18.38-r0
Linux2 products
- linux≥ 7457b35afafef5195a498d13b3e05f4258beeecc, < b1180ff50cca48807893ecde7d1f81d573c88c85 | ≥ 5b58ba042e2379f4c01da3211fd17dbdc983c2ac, < 7f8007be13e6cc1e0a508fe461f9a91ba9a28b8c | ≥ ff6f0286c896f062853552097220dd93961be9c4, < 8d9eca906e76d3dd40e5f2c79701f066678f2e62 | ≥ ff6f0286c896f062853552097220dd93961be9c4, < 1e9a4850afa0ceb63984fb1a9f3e86d0fc4fd18f | ≥ 6.12.78, < 6.12.94 | ≥ 6.18.19, < 6.18.36 | 6.19
- linux_kernel≥ 6.12.78, < 6.12.94 | ≥ 6.18.19, < 6.18.36 | ≥ 6.19, < 7.0.13 | 7.1:rc1 | 7.1:rc2 | 7.1:rc3 | 7.1:rc4 | 7.1:rc5 | 7.1:rc6
Debian1 product
- linux< 6.12.94-1 | < 7.0.13-1
4 vendors · 124 products
