[v1.1] backport: bpf: use CORE for execve hook #2468
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[ upstream commit 8100230 ] Users reported an issue on RHEL 9 with binary names being wrong. Looking at the sched/sched_process_exec tracepoint we hook into: $ cat /sys/kernel/debug/tracing/events/sched/sched_process_exec/format name: sched_process_exec ID: 310 format: field:unsigned short common_type; offset:0; size:2; signed:0; field:unsigned char common_flags; offset:2; size:1; signed:0; field:unsigned char common_preempt_count; offset:3; size:1; signed:0; field:int common_pid; offset:4; size:4; signed:1; field:unsigned char common_preempt_lazy_count; offset:8; size:1; signed:0; field:__data_loc char[] filename; offset:12; size:4; signed:1; field:pid_t pid; offset:16; size:4; signed:1; field:pid_t old_pid; offset:20; size:4; signed:1; There is an additional argument: common_preempt_lazy_count, which means that the struct we use (sched_execve_args) is no longer valid. This patch removes the above struct, and instead, uses CORE and the trace_event_raw_sched_process_exec struct. Reproduced and patch tested locally on a Rocky Linux 5.3 with a 5.14.0-362.24.1.el9_3.0.1.x86_64 kernel. Signed-off-by: Kornilios Kourtis <[email protected]>
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[ upstream commit 8100230 ]
Users reported an issue on RHEL 9 with binary names being wrong.
Looking at the sched/sched_process_exec tracepoint we hook into:
$ cat /sys/kernel/debug/tracing/events/sched/sched_process_exec/format
name: sched_process_exec
ID: 310
format:
field:unsigned short common_type; offset:0; size:2; signed:0;
field:unsigned char common_flags; offset:2; size:1; signed:0;
field:unsigned char common_preempt_count; offset:3; size:1; signed:0;
field:int common_pid; offset:4; size:4; signed:1;
field:unsigned char common_preempt_lazy_count; offset:8; size:1; signed:0;
There is an additional argument: common_preempt_lazy_count, which means that the struct we use (sched_execve_args) is no longer valid.
This patch removes the above struct, and instead, uses CORE and the trace_event_raw_sched_process_exec struct.
Reproduced and patch tested locally on a Rocky Linux 5.3 with a 5.14.0-362.24.1.el9_3.0.1.x86_64 kernel.