diff options
| author | Josh Poimboeuf <jpoimboe@redhat.com> | 2017-09-18 22:42:11 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-09-20 12:42:38 +0300 |
| commit | 8f182f845d0fa26ecc18d3bdcc3d1077a0ea3a31 (patch) | |
| tree | d8161aeaa48bc2f93de4eee69cfa9d535fbf5f18 /tools/lib/api/debug.c | |
| parent | ca04c823763e5b82c237cabe0c17f547ecdc6271 (diff) | |
| download | linux-8f182f845d0fa26ecc18d3bdcc3d1077a0ea3a31.tar.xz | |
crypto: x86/twofish - Fix RBP usage
Using RBP as a temporary register breaks frame pointer convention and
breaks stack traces when unwinding from an interrupt in the crypto code.
Use R13 instead of RBP. Both are callee-saved registers, so the
substitution is straightforward.
Reported-by: Eric Biggers <ebiggers@google.com>
Reported-by: Peter Zijlstra <peterz@infradead.org>
Tested-by: Eric Biggers <ebiggers@google.com>
Acked-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'tools/lib/api/debug.c')
0 files changed, 0 insertions, 0 deletions