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Date: Mon, 10 Aug 2009 12:40:20 +0800
From: Eugene Teo <>
CC: "Steven M. Christey" <>
Subject: CVE request: kernel: parisc: isa-eeprom missing lower bound check

loff_t is a signed type. If userspace passes a negative ppos, the
"count" range check is weakened. If ppos is negative, the readb() later
in the function will poke in random memory. Only affects if you are
using a PA-RISC kernel with CONFIG_EISA set.

Upstream commit:


Thanks, Eugene

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