Zheng Wang f56156a55e media: venus: fix use after free bug in venus_remove due to race condition ... commit c5a85ed88e043474161bbfe54002c89c1cb50ee2 upstream. in venus_probe, core->work is bound with venus_sys_error_handler, which is used to handle error. The code use core->sys_err_done to make sync work. The core->work is started in venus_event_notify. If we call venus_remove, there might be an unfished work. The possible sequence is as follows: CPU0 CPU1 |venus_sys_error_handler venus_remove | hfi_destroy | venus_hfi_destroy | kfree(hdev); | |hfi_reinit |venus_hfi_queues_reinit |//use hdev Fix it by canceling the work in venus_remove. Cc: stable@vger.kernel.org Fixes: af2c3834c8ca ("[media] media: venus: adding core part and helper functions") Signed-off-by: Zheng Wang <zyytlz.wz@163.com> Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com> Signed-off-by: Stanimir Varbanov <stanimir.k.varbanov@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-11-23 23:21:45 +01:00
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camss	media: qcom: camss: Add check for v4l2_fwnode_endpoint_parse	2024-11-23 23:21:03 +01:00
venus	media: venus: fix use after free bug in venus_remove due to race condition	2024-11-23 23:21:45 +01:00