[PATCH v3] isdnloop: fix and simplify isdnloop_init()

David Miller davem at davemloft.net
Fri Aug 3 23:53:42 UTC 2012


From: Fengguang Wu <fengguang.wu at intel.com>
Date: Fri, 3 Aug 2012 17:10:01 +0800

> Fix a buffer overflow bug by removing the revision and printk.
> 
> [   22.016214] isdnloop-ISDN-driver Rev 1.11.6.7 
> [   22.097508] isdnloop: (loop0) virtual card added
> [   22.174400] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff83244972
> [   22.174400] 
> [   22.436157] Pid: 1, comm: swapper Not tainted 3.5.0-bisect-00018-gfa8bbb1-dirty #129
> [   22.624071] Call Trace:
> [   22.720558]  [<ffffffff832448c3>] ? CallcNew+0x56/0x56
> [   22.815248]  [<ffffffff8222b623>] panic+0x110/0x329
> [   22.914330]  [<ffffffff83244972>] ? isdnloop_init+0xaf/0xb1
> [   23.014800]  [<ffffffff832448c3>] ? CallcNew+0x56/0x56
> [   23.090763]  [<ffffffff8108e24b>] __stack_chk_fail+0x2b/0x30
> [   23.185748]  [<ffffffff83244972>] isdnloop_init+0xaf/0xb1
> 
> Signed-off-by: Fengguang Wu <fengguang.wu at intel.com>

Applied.



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