- **status**: assigned --> accepted
---
** [tickets:#1789] log: not verify the logBufSize caused the node
malfunctioned**
**Status:** accepted
**Milestone:** 4.6.2
**Created:** Thu Apr 28, 2016 11:06 AM UTC by Vu Minh Nguyen
**Last Updated:** Fri Apr 29, 2016 09:04 AM UTC
**Owner:** Vu Minh Nguyen
Normally, the log clients pass `logBufSize` value which is calculated based on
the data in `logBuf` to `safLogWriteLogAsync()` LOG API.
But when accidentally passing an invalid value of `logBufSize` to
`saLogWriteLogAsync()` such as a very large number which is caused by not using
`strlen()` on `logBuf`, it will cause a lot of troubles:
E.g:
1) The safLog will be flooded by zero and has very big size (e.g 4GB)
2) Eat lots of RAM
3) Consume much CPU
4) Other things
---
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