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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-89721

phy: rockchip-samsung-dcphy: fix out-of-range max_register

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • b2a1a2ae7818c9d8da12bf7b1983c8b9f5fb712b to < 14afe18655c0951f4f85898f761bf92264e65ccdaffected
  • b2a1a2ae7818c9d8da12bf7b1983c8b9f5fb712b to < c1a62f9dcf531d56c56da2e4435386b6d264c69faffected
  • b2a1a2ae7818c9d8da12bf7b1983c8b9f5fb712b to < 4486e75ba647bd8b98fc1f053101b40caceeed4baffected

Linux Linux

Default version status: affected

  • 6.15affected
  • 0 to < 6.15unaffected
  • 6.18.50 to ≤ 6.18.*unaffected
  • 7.2.4 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References