[OpenWrt-Devel] Fwd: Fixed bug

Daniel F. Dickinson cshored at thecshore.com
Wed Jul 11 15:17:18 EDT 2018


On 2018-07-11 11:52 AM, Voina Alex wrote:
> 
> 
> Dear OpenWRT/LEDE buddy,
> 
> I have found a bug in the Chaos Calmer (15.05.1 , 448532) release that 
> has been fixed since the lede-17.01.3 release for x86 targets. The bug 
> is related to ubusd or libubox but I'm not really sure which one it is. 
> It is a file descriptor leak rooted in the logread ubus method. Every 
> call to logread whether is logread -f, logread, logread -l 1 or ubus 
> call log read '{ }' opens a file of the following format which is not 
> closed anymore.
> 
> ubusd   2918 root   41r   CHR                1,3      0t0    3934 /dev/null
> ubusd   2918 root   42r   CHR                1,3      0t0    3934 /dev/null
> ubusd   2918 root   43r   CHR                1,3      0t0    3934 /dev/null
> ubusd   2918 root   44r   CHR                1,3      0t0    3934 /dev/null
> ubusd   2918 root   45r   CHR                1,3      0t0    3934 /dev/null
> ubusd   2918 root   46r   CHR                1,3      0t0    3934 /dev/null
> ubusd   2918 root   47r   CHR                1,3      0t0    3934 /dev/null
> 
> I saw this issue is mitigated in lede-17.01.3 but I don't know where 
> exactly along the releases it happened. Can you point me to the 
> patch/commit that fixes this ?
> 


This is perhaps a silly question but did you look at the ubus repo at 
git.openwrt.org (ubus source code is maintained separate from the main 
tree; the main tree is primarily packaging/build and kernel concerns.

Regards,

Daniel

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