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| author | Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2014-07-30 10:30:28 +0530 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-08-08 16:07:25 +1000 |
| commit | 14296103ae8afb7d38a8b24274f29dd0cc89fb4c (patch) | |
| tree | 64c5cc343c023ec486a37a10eed45594526479be /hw/fsp | |
| parent | e810dcbc09c375a39ce36f461eb0cc2f7e9a1aed (diff) | |
| download | skiboot-14296103ae8afb7d38a8b24274f29dd0cc89fb4c.zip skiboot-14296103ae8afb7d38a8b24274f29dd0cc89fb4c.tar.gz skiboot-14296103ae8afb7d38a8b24274f29dd0cc89fb4c.tar.bz2 | |
ELOG: Make sure we do not cross read buffer size
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'hw/fsp')
| -rw-r--r-- | hw/fsp/fsp-elog-read.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/hw/fsp/fsp-elog-read.c b/hw/fsp/fsp-elog-read.c index 571e79a..14babdf 100644 --- a/hw/fsp/fsp-elog-read.c +++ b/hw/fsp/fsp-elog-read.c @@ -416,6 +416,13 @@ static bool fsp_elog_msg(uint32_t cmd_sub_mod, struct fsp_msg *msg) printf("ELOG: Notified of log 0x%08x (size: %d)\n", log_id, log_size); + /* Make sure we don't cross read buffer size */ + if (log_size > ELOG_READ_BUFFER_SIZE) { + log_size = ELOG_READ_BUFFER_SIZE; + printf("ELOG: Truncated log (0x%08x) to 0x%x\n", + log_id, log_size); + } + /* take a lock until we take out the node from elog_read_free */ lock(&elog_read_lock); if (!list_empty(&elog_read_free)) { |