Malahal has uploaded this change for review. ( https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/496199 ) Change subject: Fix ACL refcount leak ...................................................................... Fix ACL refcount leak mdcache_is_referral() takes attrs parameter. This is probably to aid in detecting an object has a referral or not, and the caller doesn't care to release the passed in attr. mdcache_is_referral() fills in attrs with ACL by calling fsal_copy_attrs() and no one releases such an ACL ref. mdcache_is_referral() doesn't need attrs parameter as it is the custodian of attribute cache but sub-FSALs may need it. Made it as unused parameter for mdcache_is_referral(). Also... mdcache_readdir_chunked() calls populate_dirent (via cb()) with 'entry->attrs' without holding any lock. populate_dirent() calls nfs4_readdir_callback(via state->cb) which inturn calls mdcache_is_referral() which may call fsal_common_is_referral() which could change attributes and the acl pointer without holding any lock! Change-Id: I4f15acbcd4b2c0bb049f19c29346d4248085df20 Signed-off-by: Malahal Naineni <malahal(a)us.ibm.com&gt; --- M src/FSAL/FSAL_GPFS/fsal_convert.c M src/FSAL/Stackable_FSALs/FSAL_MDCACHE/mdcache_handle.c M src/FSAL/Stackable_FSALs/FSAL_MDCACHE/mdcache_helpers.c M src/include/fsal.h 4 files changed, 11 insertions(+), 3 deletions(-) git pull ssh://review.gerrithub.io:29418/ffilz/nfs-ganesha refs/changes/99/496199/1 -- To view, visit https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/496199 To unsubscribe, or for help writing mail filters, visit https://review.gerrithub.io/settings Gerrit-Project: ffilz/nfs-ganesha Gerrit-Branch: next Gerrit-Change-Id: I4f15acbcd4b2c0bb049f19c29346d4248085df20 Gerrit-Change-Number: 496199 Gerrit-PatchSet: 1 Gerrit-Owner: Malahal <malahal(a)gmail.com&gt; Gerrit-MessageType: newchange