[erofs-utils] Report two resource leak issues and submit patches

[刘金宝]

Hello,
There are two resource leak problems and patches here.
Problem 1: Resource leakage
File: erofs-utils/lib/xattr.c
Function: erofs_get_selabel_xattr
Statement: ret = asprintf(&fspath, "/%s", erofs_fspath(srcpath));
if (ret <= 0)
return ERR_PTR(-ENOMEM);
Analysis: When the asprintf function fails, it returns -1, so the judgment condition should be ret<0. Return when ret=0, the storage pointed to by fspath will be leaked
Patch: if (ret < 0)

Problem 2: Resource leakage
File: erofs-utils/lib/inode.c
Function: erofs_droid_inode_fsconfig
Statement: if (asprintf(&decorated, "%s/%s", cfg.mount_point, erofs_fspath(path)) <= 0)
return -ENOMEM;
Analysis: When the asprintf function fails, it returns -1, so the judgment condition should be ret<0. Return when asprintf(&decorated, "%s/%s", cfg.mount_point, erofs_fspath(path)) = 0, the storage pointed to by decorated will be leaked
Patch: if (asprintf(&decorated, "%s/%s", cfg.mount_point, erofs_fspath(path)) < 0)

Thank you!
Jinbao Liu



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