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selinux: hooks: use __getname() to allocate path buffer

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selinux_genfs_get_sid() allocates memory for a path with __get_free_page()
although there is a dedicated helper for allocation of file paths:
__getname().

Replace __get_free_page() for allocation of a path buffer with __getname().

Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Mike Rapoport (Microsoft)
2026-05-20 11:18:56 +03:00
committed by Paul Moore
parent bc3f08d1ef
commit 54067bacb4
1 changed files with 2 additions and 2 deletions
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4
security/selinux/hooks.c
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@@ -1336,7 +1336,7 @@ static int selinux_genfs_get_sid(struct dentry *dentry,
struct super_block *sb = dentry->d_sb;
char *buffer, *path;
buffer = (char *)__get_free_page(GFP_KERNEL);
buffer = __getname();
if (!buffer)
return -ENOMEM;
@@ -1361,7 +1361,7 @@ static int selinux_genfs_get_sid(struct dentry *dentry,
rc = 0;
}
}
free_page((unsigned long)buffer);
__putname(buffer);
return rc;
}