CVE-2026-53152Medium· 5.5▾ SunlitIn 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 …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 1.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.1%
0.1% → 0.2%
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.
linux_kernel >= 6.12.78, < 6.12.94linux_kernel >= 6.18.19, < 6.18.36linux_kernel >= 6.19, < 7.0.13linux_kernel = 7.1Upgrade past the affected range:
linux_kernel 7.0.13Connected by shared product, vendor, weakness, or advisory.
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