Gaurav has uploaded this change for review. ( https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/1199736?usp=email ) Change subject: Fix fsal not supporting fso_allocate_own_read_buffer ...................................................................... Fix fsal not supporting fso_allocate_own_read_buffer We use io_data to set release method and release_data. But it could result in use after free as pointed by valgrind. So keep copy of io_data instead of referencing original one. ==144581== Invalid read of size 8 ==144581== at 0x4E8A3D7: fsal_iov_release (fsal_helper.c:1900) ==144581== by 0x4EF705D: xdr_io_data_uio_release (rpc_tools.c:500) ==144581== by 0x530EA08: xdr_ioq_uv_release (xdr_ioq.c:568) ==144581== by 0x53100FE: xdr_ioq_release (xdr_ioq.c:1210) ==144581== by 0x53101CA: xdr_ioq_destroy (xdr_ioq.c:1228) ==144581== by 0x5310261: xdr_ioq_destroy_internal (xdr_ioq.c:1245) ==144581== by 0x531250C: svc_ioq_write (svc_ioq.c:404) ==144581== by 0x5312618: svc_ioq_write_now (svc_ioq.c:441) ==144581== by 0x5309C17: svc_vc_reply (svc_vc.c:1272) ==144581== by 0x52FD857: svc_sendreply (svc.c:509) ==144581== by 0x4EACEDC: complete_request (nfs_worker_thread.c:784) ==144581== by 0x4EAF5DE: nfs_rpc_process_request (nfs_worker_thread.c:1579) ==144581== Address 0x10d1f0d8 is 200 bytes inside a block of size 208 free'd ==144581== at 0x4C3B4CB: free (vg_replace_malloc.c:985) ==144581== by 0x4F93D70: gsh_free (abstract_mem.h:257) ==144581== by 0x4F959DE: nfs4_op_read (nfs4_op_read.c:892) ==144581== by 0x4F77BF4: process_one_op (nfs4_Compound.c:912) ==144581== by 0x4F78F8B: nfs4_Compound (nfs4_Compound.c:1394) ==144581== by 0x4EAF5A3: nfs_rpc_process_request (nfs_worker_thread.c:1558) ==144581== by 0x4EAFB36: nfs_rpc_valid_NFS (nfs_worker_thread.c:1778) ==144581== by 0x530999A: svc_vc_decode (svc_vc.c:1209) ==144581== by 0x53046B5: svc_request (svc_rqst.c:1236) ==144581== by 0x53098A3: svc_vc_recv (svc_vc.c:1182) ==144581== by 0x5304635: svc_rqst_xprt_task_recv (svc_rqst.c:1217) ==144581== by 0x53051CC: svc_rqst_epoll_loop (svc_rqst.c:1598) ==144581== Block was alloc'd at ==144581== at 0x4C3F963: calloc (vg_replace_malloc.c:1595) ==144581== by 0x4F9572F: nfs4_read (nfs4_op_read.c:783) ==144581== by 0x4F95986: nfs4_op_read (nfs4_op_read.c:875) ==144581== by 0x4F77BF4: process_one_op (nfs4_Compound.c:912) ==144581== by 0x4F78F8B: nfs4_Compound (nfs4_Compound.c:1394) ==144581== by 0x4EAF5A3: nfs_rpc_process_request (nfs_worker_thread.c:1558) ==144581== by 0x4EAFB36: nfs_rpc_valid_NFS (nfs_worker_thread.c:1778) ==144581== by 0x530999A: svc_vc_decode (svc_vc.c:1209) ==144581== by 0x53046B5: svc_request (svc_rqst.c:1236) ==144581== by 0x53098A3: svc_vc_recv (svc_vc.c:1182) ==144581== by 0x5304635: svc_rqst_xprt_task_recv (svc_rqst.c:1217) ==144581== by 0x53051CC: svc_rqst_epoll_loop (svc_rqst.c:1598) ==144581== ==144581== Invalid read of size 8 ==144581== at 0x4E8A3EA: fsal_iov_release (fsal_helper.c:1901) ==144581== by 0x4EF705D: xdr_io_data_uio_release (rpc_tools.c:500) ==144581== by 0x530EA08: xdr_ioq_uv_release (xdr_ioq.c:568) ==144581== by 0x53100FE: xdr_ioq_release (xdr_ioq.c:1210) ==144581== by 0x53101CA: xdr_ioq_destroy (xdr_ioq.c:1228) ==144581== by 0x5310261: xdr_ioq_destroy_internal (xdr_ioq.c:1245) ==144581== by 0x531250C: svc_ioq_write (svc_ioq.c:404) ==144581== by 0x5312618: svc_ioq_write_now (svc_ioq.c:441) ==144581== by 0x5309C17: svc_vc_reply (svc_vc.c:1272) ==144581== by 0x52FD857: svc_sendreply (svc.c:509) ==144581== by 0x4EACEDC: complete_request (nfs_worker_thread.c:784) ==144581== by 0x4EAF5DE: nfs_rpc_process_request (nfs_worker_thread.c:1579) ==144581== Address 0x10d1f0d8 is 200 bytes inside a block of size 208 free'd ==144581== at 0x4C3B4CB: free (vg_replace_malloc.c:985) ==144581== by 0x4F93D70: gsh_free (abstract_mem.h:257) ==144581== by 0x4F959DE: nfs4_op_read (nfs4_op_read.c:892) ==144581== by 0x4F77BF4: process_one_op (nfs4_Compound.c:912) ==144581== by 0x4F78F8B: nfs4_Compound (nfs4_Compound.c:1394) ==144581== by 0x4EAF5A3: nfs_rpc_process_request (nfs_worker_thread.c:1558) ==144581== by 0x4EAFB36: nfs_rpc_valid_NFS (nfs_worker_thread.c:1778) ==144581== by 0x530999A: svc_vc_decode (svc_vc.c:1209) ==144581== by 0x53046B5: svc_request (svc_rqst.c:1236) ==144581== by 0x53098A3: svc_vc_recv (svc_vc.c:1182) ==144581== by 0x5304635: svc_rqst_xprt_task_recv (svc_rqst.c:1217) ==144581== by 0x53051CC: svc_rqst_epoll_loop (svc_rqst.c:1598) ==144581== Block was alloc'd at ==144581== at 0x4C3F963: calloc (vg_replace_malloc.c:1595) ==144581== by 0x4F9572F: nfs4_read (nfs4_op_read.c:783) ==144581== by 0x4F95986: nfs4_op_read (nfs4_op_read.c:875) ==144581== by 0x4F77BF4: process_one_op (nfs4_Compound.c:912) ==144581== by 0x4F78F8B: nfs4_Compound (nfs4_Compound.c:1394) ==144581== by 0x4EAF5A3: nfs_rpc_process_request (nfs_worker_thread.c:1558) ==144581== by 0x4EAFB36: nfs_rpc_valid_NFS (nfs_worker_thread.c:1778) ==144581== by 0x530999A: svc_vc_decode (svc_vc.c:1209) ==144581== by 0x53046B5: svc_request (svc_rqst.c:1236) ==144581== by 0x53098A3: svc_vc_recv (svc_vc.c:1182) ==144581== by 0x5304635: svc_rqst_xprt_task_recv (svc_rqst.c:1217) ==144581== by 0x53051CC: svc_rqst_epoll_loop (svc_rqst.c:1598) ==144581== Change-Id: I8a9396006e4a3ce46a88eb6f93db6cd6c40180e0 Signed-off-by: Gaurav Gangalwar <gaurav.gangalwar(a)gmail.com&gt; --- M src/FSAL/fsal_helper.c M src/RPCAL/rpc_tools.c 2 files changed, 13 insertions(+), 7 deletions(-) git pull ssh://review.gerrithub.io:29418/ffilz/nfs-ganesha refs/changes/36/1199736/1 -- To view, visit https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/1199736?usp=email To unsubscribe, or for help writing mail filters, visit https://review.gerrithub.io/settings?usp=email Gerrit-MessageType: newchange Gerrit-Project: ffilz/nfs-ganesha Gerrit-Branch: next Gerrit-Change-Id: I8a9396006e4a3ce46a88eb6f93db6cd6c40180e0 Gerrit-Change-Number: 1199736 Gerrit-PatchSet: 1 Gerrit-Owner: Gaurav <gaurav.gangalwar(a)gmail.com&gt;