liyinshu has uploaded this change for review. ( https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/548005 ) Change subject: Fix crash for used after free of res_compound4_extended when replay request ...................................................................... Fix crash for used after free of res_compound4_extended when replay request This caused by commit 5f06bd1c40b89c726ccb0f0284caace66d12a1d0, which first release_nfs4_res_compound(data->res->res_compound4_extended), then assign res_SEQUENCE4->sr_status with NFS4_OK. Because res_SEQUENCE4 is in data->res->res_compound4_extended, so heap used after free happens. Actually we did not need to assign res_SEQUENCE4->sr_status with NFS4_OK for replay request, because it will comes from slot->cached_result. Even before commit 5f06bd1c40b89c726ccb0f0284caace66d12a1d0, the res_SEQUENCE4 also will be freed in complete_op by release_nfs4_res_compound, so we did not need to assign the value of res_SEQUENCE4. Change-Id: I9e3f4823e23718bf421c5237cc78a878b6f3014e Signed-off-by: liyinshu <liyinshu(a)bytedance.com&gt; --- M src/Protocols/NFS/nfs4_op_sequence.c 1 file changed, 20 insertions(+), 1 deletion(-) git pull ssh://review.gerrithub.io:29418/ffilz/nfs-ganesha refs/changes/05/548005/1 -- To view, visit https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/548005 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: I9e3f4823e23718bf421c5237cc78a878b6f3014e Gerrit-Change-Number: 548005 Gerrit-PatchSet: 1 Gerrit-Owner: liyinshu <liyinshu(a)bytedance.com&gt; Gerrit-MessageType: newchange