error in apache log

[Blisk]

I have full of these errors in log, how to fix this?

libpng warning: Interlace handling should be turned on when using png_read_image

[mghe]

It can be bug:

https://sourceforge.net/p/libpng/bugs/165/

[Blisk]

I have already see that, so I need to wait for update?

[TrevorH]

That says fixed in 1.5.1 and CentOS 7 is using 1.5.13. What's the output of rpm -q libpng

[Blisk]

libpng-1.5.13-7.el7_2.x86_64

[Blisk]

Still no solution for this problem?

[TrevorH]

Since the problem is meant to be fixed in a version of the package that's 12 point releases behind ours, perhaps whatever you are running has bundled its own copy of the library?

[Blisk]

How can I trace which application use old libraries?

[TrevorH]

If you have updatedb running nightly you could try locate -i --regex "libpng.*.so" to see what libpng files you have on the system. Then query each one of those with e.g. rpm -qf /usr/lib64/libpng15.so.15 to make sure they are owned by packages that are installed.

[avij]

lsof -n | grep libpng may also be informative.