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authorYang Xu2020-02-28 12:41:51 +0800
committerJarkko Sakkinen2020-03-15 20:59:50 +0200
commit2e356101e72ab1361821b3af024d64877d9a798d (patch)
treeacb6e134ca1b89783de19a23a6786bc262a7686a /drivers/i3c/master
parent18b3670d79ae9948a5839f0956a47e4eb4130a63 (diff)
KEYS: reaching the keys quotas correctly
Currently, when we add a new user key, the calltrace as below: add_key() key_create_or_update() key_alloc() __key_instantiate_and_link generic_key_instantiate key_payload_reserve ...... Since commit a08bf91ce28e ("KEYS: allow reaching the keys quotas exactly"), we can reach max bytes/keys in key_alloc, but we forget to remove this limit when we reserver space for payload in key_payload_reserve. So we can only reach max keys but not max bytes when having delta between plen and type->def_datalen. Remove this limit when instantiating the key, so we can keep consistent with key_alloc. Also, fix the similar problem in keyctl_chown_key(). Fixes: 0b77f5bfb45c ("keys: make the keyring quotas controllable through /proc/sys") Fixes: a08bf91ce28e ("KEYS: allow reaching the keys quotas exactly") Cc: stable@vger.kernel.org # 5.0.x Cc: Eric Biggers <ebiggers@google.com> Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/i3c/master')
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