crypto: pcrypt - Fix user-after-free on module unload
commit07bfd9bdf5
upstream. On module unload of pcrypt we must unregister the crypto algorithms first and then tear down the padata structure. As otherwise the crypto algorithms are still alive and can be used while the padata structure is being freed. Fixes:5068c7a883
("crypto: pcrypt - Add pcrypt crypto...") Cc: <stable@vger.kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -362,11 +362,12 @@ err:
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static void __exit pcrypt_exit(void)
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{
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crypto_unregister_template(&pcrypt_tmpl);
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pcrypt_fini_padata(pencrypt);
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pcrypt_fini_padata(pdecrypt);
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kset_unregister(pcrypt_kset);
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crypto_unregister_template(&pcrypt_tmpl);
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}
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subsys_initcall(pcrypt_init);
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