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Re: [BUGFIX] NULL pointer dereference in __vm_enough_memory()
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From: WU Fengguang
Subject:
Re: [BUGFIX] NULL pointer dereference in __vm_enough_memory()
Date: Sunday, August 12, 2007 - 5:23 pm
On Sun, Aug 12, 2007 at 08:21:43PM +0400, Cyrill Gorcunov wrote:
quoted text
> [Alan Cox - Sun, Aug 12, 2007 at 04:17:44PM +0100] > | Try this (it compiles but isnt tested). Its a weekend here, the sun is > | shining, the beach is a short walk, and I have more interesting things to > | do right now 8) > | > |
[...]
quoted text
> | -int __vm_enough_memory(long pages, int cap_sys_admin) > | +int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin) > | { > | unsigned long free, allowed; > | > | @@ -166,7 +166,7 @@ > | > | /* Don't let a single process grow too big: > | leave 3% of the size of this process for other processes */ > | - allowed -= current->mm->total_vm / 32; > | + allowed -= mm->total_vm / 32; > > So mm->total_vm is 0 for __bprm_mm_init case. Is that ok? Or I miss > something?
Yeah, Alan adds mm to the interfaces and leaves us the question of "what mm to pass in when current->mm == NULL?" ;) -
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Messages in current thread:
Re: [BUGFIX] NULL pointer dereference in __vm_enough_memory()
, WU Fengguang
, (Sun Aug 12, 5:27 am)
Re: [BUGFIX] NULL pointer dereference in __vm_enough_memory()
, Alan Cox
, (Sun Aug 12, 6:19 am)
Re: [BUGFIX] NULL pointer dereference in __vm_enough_memory()
, WU Fengguang
, (Sun Aug 12, 7:09 am)
Re: [BUGFIX] NULL pointer dereference in __vm_enough_memory()
, Alan Cox
, (Sun Aug 12, 8:17 am)
Re: [BUGFIX] NULL pointer dereference in __vm_enough_memory()
, Cyrill Gorcunov
, (Sun Aug 12, 9:21 am)
Re: [BUGFIX] NULL pointer dereference in __vm_enough_memory()
, Rene Herman
, (Sun Aug 12, 5:14 pm)
Re: [BUGFIX] NULL pointer dereference in __vm_enough_memory()
, WU Fengguang
, (Sun Aug 12, 5:23 pm)
Re: [BUGFIX] NULL pointer dereference in __vm_enough_memory()
, WU Fengguang
, (Mon Aug 13, 12:38 am)
[PATCH] fix NULL pointer dereference in __vm_enough_memory()
, Alan Cox
, (Mon Aug 13, 6:01 am)
Re: [PATCH] fix NULL pointer dereference in __vm_enough_me ...
, Andrew Morton
, (Mon Aug 13, 10:01 pm)
Re: [PATCH] fix NULL pointer dereference in __vm_enough_me ...
, Tobias Diedrich
, (Tue Aug 14, 10:50 am)
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