Messages in this thread | | | Date | Tue, 17 Feb 2009 19:26:15 +0100 | From | Johannes Weiner <> | Subject | [patch 0/7] kzfree() v2 |
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This series introduces kzfree() and converts callsites which do memset() + kzfree() explicitely.
The caller intention is to ensure that security-sensitive data are cleared from slab objects before they are passed back to the allocator.
This also removes the last modular ksize() user (crypto/api.c) again by converting it to kzfree() which figures out the length of the memory region to zero internally.
I left out drivers/w1/w1{,_int}.c and dropped the conversion of drivers/atm/mpoa_caches.c in this iteration as I think they don't strictly need the zeroeing and the memsetting should probably be removed [ added Chas Williams and Evgeniy Polyakov to Cc ].
v2: - EXPORT_SYMBOL(kzfree), thanks linker - remove superfluous NULL checks, thanks Pekka - mention `security' in the description
Hannes
arch/s390/crypto/prng.c | 3 +-- crypto/api.c | 5 +---- drivers/md/dm-crypt.c | 6 ++---- drivers/s390/crypto/zcrypt_pcixcc.c | 3 +-- drivers/usb/host/hwa-hc.c | 3 +-- drivers/usb/wusbcore/cbaf.c | 3 +-- fs/cifs/connect.c | 6 +----- fs/cifs/misc.c | 10 ++-------- fs/ecryptfs/keystore.c | 3 +-- fs/ecryptfs/messaging.c | 3 +-- include/linux/slab.h | 1 + mm/util.c | 20 ++++++++++++++++++++ 12 files changed, 33 insertions(+), 33 deletions(-)
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