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| author | Holger Dengler <dengler@linux.ibm.com> | 2024-05-07 17:03:18 +0200 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2024-05-14 20:16:33 +0200 |
| commit | 1d8c270de5eb74245d72325d285894a577a945d9 (patch) | |
| tree | d84c99b82c883cbd5be1d316d275244352349b3d /drivers/s390 | |
| parent | 22e6824622e8a8889df0f8fc4ed5aea0e702a694 (diff) | |
| download | linux-stable-1d8c270de5eb74245d72325d285894a577a945d9.tar.gz linux-stable-1d8c270de5eb74245d72325d285894a577a945d9.tar.bz2 linux-stable-1d8c270de5eb74245d72325d285894a577a945d9.zip | |
s390/pkey: Wipe sensitive data on failure
Wipe sensitive data from stack also if the copy_to_user() fails.
Suggested-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ingo Franzki <ifranzki@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/crypto/pkey_api.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/s390/crypto/pkey_api.c b/drivers/s390/crypto/pkey_api.c index 933894065623..179287157c2f 100644 --- a/drivers/s390/crypto/pkey_api.c +++ b/drivers/s390/crypto/pkey_api.c @@ -1377,7 +1377,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd, if (rc) break; if (copy_to_user(ucs, &kcs, sizeof(kcs))) - return -EFAULT; + rc = -EFAULT; memzero_explicit(&kcs, sizeof(kcs)); break; } @@ -1412,7 +1412,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd, if (rc) break; if (copy_to_user(ucp, &kcp, sizeof(kcp))) - return -EFAULT; + rc = -EFAULT; memzero_explicit(&kcp, sizeof(kcp)); break; } |