Herbert Xu adbf2b44e8 lib/mpi: Fix karactx leak in mpi_powm ... commit c8ea9fce2baf7b643384f36f29e4194fa40d33a6 upstream. Sometimes mpi_powm will leak karactx because a memory allocation failure causes a bail-out that skips the freeing of karactx. This patch moves the freeing of karactx to the end of the function like everything else so that it can't be skipped. Reported-by: syzbot+f7baccc38dcc1e094e77@syzkaller.appspotmail.com Fixes: cdec9cb516 ("crypto: GnuPG based MPI lib - source files...") Cc: <stable@vger.kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-07-10 09:56:43 +02:00
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generic_mpih-add1.c
generic_mpih-lshift.c
generic_mpih-mul1.c
generic_mpih-mul2.c
generic_mpih-mul3.c
generic_mpih-rshift.c
generic_mpih-sub1.c
longlong.h	lib/mpi: Fix umul_ppmm() for MIPS64r6	2018-03-03 10:19:42 +01:00
Makefile	MPILIB: Reinstate mpi_cmp[_ui]() and export for RSA signature verification	2012-10-08 13:50:15 +10:30
mpi-bit.c	MPILIB: Provide count_leading/trailing_zeros() based on arch functions	2012-10-08 13:50:11 +10:30
mpi-cmp.c	MPILIB: Fix comparison of negative MPIs	2015-01-14 16:10:12 +00:00
mpi-inline.h
mpi-internal.h	MPILIB: Fix obvious but harmless typo	2015-01-14 15:16:00 +00:00
mpi-pow.c	lib/mpi: Fix karactx leak in mpi_powm	2019-07-10 09:56:43 +02:00
mpicoder.c	lib/mpi: mpi_write_sgl(): fix skipping of leading zero limbs	2016-09-15 08:27:54 +02:00
mpih-cmp.c
mpih-div.c	Remove unused code from MPI library	2012-05-26 11:51:03 +10:00
mpih-mul.c	Remove unused code from MPI library	2012-05-26 11:51:03 +10:00
mpiutil.c	MPILIB: add mpi_read_buf() and mpi_get_size() helpers	2015-06-16 14:35:06 +08:00