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Commit 4a33691c authored by Zeng Tao's avatar Zeng Tao Committed by Greg Kroah-Hartman
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cpu-topology: Fix the potential data corruption



Currently there are only 10 bytes to store the cpu-topology 'name'
information. Only 10 bytes copied into cluster/thread/core names.

If the cluster ID exceeds 2-digit number, it will result in the data
corruption, and ending up in a dead loop in the parsing routines. The
same applies to the thread names with more that 3-digit number.

This issue was found using the boundary tests under virtualised
environment like QEMU.

Let us increase the buffer to fix such potential issues.

Reviewed-by: default avatarSudeep Holla <sudeep.holla@arm.com>
Signed-off-by: default avatarZeng Tao <prime.zeng@hisilicon.com>

Link: https://lore.kernel.org/r/1583294092-5929-1-git-send-email-prime.zeng@hisilicon.com
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b8fe128d
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