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Possible crash on Linux with large stack size #13

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ip1981 opened this issue May 14, 2014 · 0 comments
Open

Possible crash on Linux with large stack size #13

ip1981 opened this issue May 14, 2014 · 0 comments

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@ip1981
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ip1981 commented May 14, 2014

You can try to malloc a large amount of memory, malloc will return NULL and pxz will crash in snprintf:
https://github.com/jnovy/pxz/blob/master/pxz.c#L244

As far as I remember ARG_MAX in glibc depends on stack size:
https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/sysconf.c;h=25208cdc539233c9a6d86380bdc283b9e2cb6247;hb=HEAD#l90

# getconf ARG_MAX
2097152
# ulimit -s unlimited
# getconf ARG_MAX
4611686018427387903
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