get glibc free method call stack

赵爱南 zhaoainan163@163.com
Fri Oct 18 08:38:49 GMT 2024


Hello:


Now there is a error in glibc2.34:


free():invalid size


Through debugging, it was found that when libc_malloc is allocated from tcache_get, but the size size is negative, causing an error in determining the size when free. May I ask if there is always a value for size when allocating from tcache.








thanks.


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