diff options
| author | Tejun Heo <htejun@gmail.com> | 2008-02-14 10:32:07 +0900 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-26 07:42:37 -0800 |
| commit | cf3680b90c7842cf91ed857ac4528f4e057da366 (patch) | |
| tree | f73af36b208fab34620808f0075cc54f51cfdfb0 /kernel/mutex-debug.h | |
| parent | bfa274e2436fc7ef72ef51c878083647f1cfd429 (diff) | |
printk: fix possible printk overrun
printk recursion detection prepends message to printk_buf and offsets
printk_buf when actual message is printed but it forgets to trim buffer
length accordingly. This can result in overrun in extreme cases. Fix it.
[ mingo@elte.hu:
bug was introduced by me via:
commit 32a76006683f7b28ae3cc491da37716e002f198e
Author: Ingo Molnar <mingo@elte.hu>
Date: Fri Jan 25 21:07:58 2008 +0100
printk: make printk more robust by not allowing recursion
]
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/mutex-debug.h')
0 files changed, 0 insertions, 0 deletions