This is a note to let you know that I've just added the patch titled s390/pkey: fix missing length of protected key on return to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: s390-pkey-fix-missing-length-of-protected-key-on-return.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From aab73d278d49c718b722ff5052e16c9cddf144d4 Mon Sep 17 00:00:00 2001 From: Harald Freudenberger <freude@xxxxxxxxxxxxx> Date: Fri, 31 Jan 2020 12:08:31 +0100 Subject: s390/pkey: fix missing length of protected key on return From: Harald Freudenberger <freude@xxxxxxxxxxxxx> commit aab73d278d49c718b722ff5052e16c9cddf144d4 upstream. The pkey ioctl call PKEY_SEC2PROTK updates a struct pkey_protkey on return. The protected key is stored in, the protected key type is stored in but the len information was not updated. This patch now fixes this and so the len field gets an update to refrect the actual size of the protected key value returned. Fixes: efc598e6c8a9 ("s390/zcrypt: move cca misc functions to new code file") Cc: Stable <stable@xxxxxxxxxxxxxxx> Signed-off-by: Harald Freudenberger <freude@xxxxxxxxxxxxx> Reported-by: Christian Rund <RUNDC@xxxxxxxxxx> Suggested-by: Ingo Franzki <ifranzki@xxxxxxxxxxxxx> Signed-off-by: Vasily Gorbik <gor@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/s390/crypto/pkey_api.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/s390/crypto/pkey_api.c +++ b/drivers/s390/crypto/pkey_api.c @@ -794,7 +794,7 @@ static long pkey_unlocked_ioctl(struct f return -EFAULT; rc = cca_sec2protkey(ksp.cardnr, ksp.domain, ksp.seckey.seckey, ksp.protkey.protkey, - NULL, &ksp.protkey.type); + &ksp.protkey.len, &ksp.protkey.type); DEBUG_DBG("%s cca_sec2protkey()=%d\n", __func__, rc); if (rc) break; Patches currently in stable-queue which might be from freude@xxxxxxxxxxxxx are queue-5.4/s390-pkey-fix-missing-length-of-protected-key-on-return.patch