twx-linux

Files

T

Mahesh Salgaonkar 2dc310f837 powerpc/pseries: Avoid using the size greater than RTAS_ERROR_LOG_MAX.

[ Upstream commit 74e96bf44f ]

The global mce data buffer that used to copy rtas error log is of 2048
(RTAS_ERROR_LOG_MAX) bytes in size. Before the copy we read
extended_log_length from rtas error log header, then use max of
extended_log_length and RTAS_ERROR_LOG_MAX as a size of data to be copied.
Ideally the platform (phyp) will never send extended error log with
size > 2048. But if that happens, then we have a risk of buffer overrun
and corruption. Fix this by using min_t instead.

Fixes: d368514c30 ("powerpc: Fix corruption when grabbing FWNMI data")
Reported-by: Michal Suchanek <msuchanek@suse.com>
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-09-15 09:40:39 +02:00

boot

powerpc/corenet: explicitly disable the SDHC controller on kmcoge4

2017-11-15 17:13:09 +01:00

configs

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crypto

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include

powerpc/fadump: handle crash memory ranges array index overflow

2018-09-09 20:04:32 +02:00

kernel