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Marking subscriptions complete can cause a crash with realm::KeyNotFound after a client reset #7090

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sync-by-unito bot opened this issue Oct 30, 2023 · 0 comments

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sync-by-unito bot commented Oct 30, 2023 •

edited by danieltabacaru

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SessionWrapper reads the state of the SubscriptionStore when it is created, but this state can change after a client reset (when then state of existing subscription may change, in addition to new subscriptions being created and old subscriptions being removed). This can cause a crash with realm::KeyNotFound when trying to update a subscription which does not exist anymore (https://evergreen.mongodb.com/task_log_raw/realm_core_stable_ubuntu2004_arm64_baas_integration_tests_patch_0857dbdf5a6c063df776790cccba4a57fdb25e2d_653d959a2fbabe3ddbb485a2_23_10_28_23_14_53/0?type=T&text=true).

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Fix race in send_upload_message #7088

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