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Herbert Xu c8ea9fce2b lib/mpi: Fix karactx leak in mpi_powm 
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>
2019-07-03 22:11:55 +08:00
..
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 2017-12-22 19:39:09 +11:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mpi-bit.c
mpi-cmp.c MPILIB: Fix comparison of negative MPIs 2015-01-14 16:10:12 +00:00
mpi-inline.h lib/mpi: use "static inline" instead of "extern inline" 2016-02-28 03:26:34 +08:00
mpi-internal.h lib/mpi: headers cleanup 2018-06-07 17:34:39 -07:00
mpi-pow.c lib/mpi: Fix karactx leak in mpi_powm 2019-07-03 22:11:55 +08:00
mpicoder.c lib/mpi: kunmap after finishing accessing buffer 2017-08-22 14:45:01 +08:00
mpih-cmp.c
mpih-div.c
mpih-mul.c
mpiutil.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00