kernel/linux.git/lib/crypto/mpi/ec.c, branch v6.6.133Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v6.6.1332024-02-01T00:18:49+00:00crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init2024-02-01T00:18:49+00:00Tianjia Zhangtianjia.zhang@linux.alibaba.com2023-12-14T03:08:34+00:00urn:sha1:7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0a
commit ba3c5574203034781ac4231acf117da917efcd2a upstream.
When the mpi_ec_ctx structure is initialized, some fields are not
cleared, causing a crash when referencing the field when the
structure was released. Initially, this issue was ignored because
memory for mpi_ec_ctx is allocated with the __GFP_ZERO flag.
For example, this error will be triggered when calculating the
Za value for SM2 separately.
Fixes: d58bb7e55a8a ("lib/mpi: Introduce ec implementation to MPI library")
Cc: stable@vger.kernel.org # v6.5
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
crypto: lib - Move mpi into lib/crypto2023-08-11T11:19:27+00:00Herbert Xuherbert@gondor.apana.org.au2023-08-04T09:24:34+00:00urn:sha1:2a598d0b2800aa23ba51adcf060cec524aaa63b2
As lib/mpi is mostly used by crypto code, move it under lib/crypto
so that patches touching it get directed to the right mailing list.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>