bpf: Add bpf_get_task_cmdline kfunc #10327
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added 2 commits
November 20, 2025 14:13
Add the bpf_get_task_cmdline kfunc. One use case is as follows: In production environments, there are often short-lived script tasks executed, and sometimes these tasks may cause stability issues. It is desirable to detect these script tasks via eBPF. The common approach is to check the process name, but it can be difficult to distinguish specific tasks in some cases. Take the shell as an example: some tasks are started via bash xxx.sh – their process name is bash, but the script name of the task can be obtained through the cmdline. Additionally, myabe this is helpful for security auditing purposes. Signed-off-by: Tao Chen <[email protected]>
Create a task, call bpf_get_task_cmdline to retrieve the cmdline, and check if it succeeds. Signed-off-by: Tao Chen <[email protected]>
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Pull request for series with
subject: bpf: Add bpf_get_task_cmdline kfunc
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=1024855