- **status**: review --> fixed
- **assigned_to**: Vu Minh Nguyen --> nobody
- **Comment**:
changeset: 7617:a6f87948dab5
tag: tip
parent: 7614:7eda4d081769
user: Vu Minh Nguyen <[email protected]>
date: Thu May 12 10:49:03 2016 +0200
summary: log: verify logBufSize to avoid node malfunctioned [#1789]
rev: a6f87948dab5152816c2d561fbb1d749bbb8659b
changeset: 7616:48e30c0d5dfd
branch: opensaf-5.0.x
parent: 7613:0bd030fb3b90
user: Vu Minh Nguyen <[email protected]>
date: Thu May 12 10:49:03 2016 +0200
summary: log: verify logBufSize to avoid node malfunctioned [#1789]
rev: 48e30c0d5dfd66aeb0a5723a8a22e2b1a196918d
changeset: 7615:5ca256b58104
branch: opensaf-4.7.x
parent: 7612:6cd50099da92
user: Vu Minh Nguyen <[email protected]>
date: Thu May 12 10:47:16 2016 +0200
summary: log: verify logBufSize to avoid node malfunctioned [#1789]
rev: 5ca256b5810451e9d812b31bee0be83c1c56cb0a
---
** [tickets:#1789] log: not verify the logBufSize caused the node
malfunctioned**
**Status:** fixed
**Milestone:** 4.7.2
**Created:** Thu Apr 28, 2016 11:06 AM UTC by Vu Minh Nguyen
**Last Updated:** Wed May 04, 2016 06:53 PM UTC
**Owner:** nobody
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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