CVE-2026-89721Medium· 5.5▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: phy: rockchip-samsung-dcphy: fix out-of-range max_register The PHY register block is 64KB, so with a register stride of 4 the last accessible register sits at offset 0…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
— → 4.1
none → medium
— → 4.1
none → medium
— → 4.1
none → medium
4.1 → 5.5
0.2% → 0.2%
Last analysed / modified upstream
In the Linux kernel, the following vulnerability has been resolved:
phy: rockchip-samsung-dcphy: fix out-of-range max_register
The PHY register block is 64KB, so with a register stride of 4 the last accessible register sits at offset 0xfffc. max_register names 0x10000, one register past the end of the mapping: dumping the registers through the regmap debugfs interface reads beyond the ioremapped region and oopses on the unmapped page. The oops fires with the regmap lock held, so later PHY operations deadlock.
Linux >= b2a1a2ae7818c9d8da12bf7b1983c8b9f5fb712b < 14afe18655c0951f4f85898f761bf92264e65ccdLinux >= b2a1a2ae7818c9d8da12bf7b1983c8b9f5fb712b < c1a62f9dcf531d56c56da2e4435386b6d264c69fLinux >= b2a1a2ae7818c9d8da12bf7b1983c8b9f5fb712b < 4486e75ba647bd8b98fc1f053101b40caceeed4bLinux 6.15Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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