This series addresses use-after-free of faultable syscall tracepoints reported by test bots using Syzkaller. This applies on linux-next 20241022. Thanks, Mathieu Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Michael Jeanson <mjeanson@xxxxxxxxxxxx> Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Alexei Starovoitov <ast@xxxxxxxxxx> Cc: Yonghong Song <yhs@xxxxxx> Cc: Paul E. McKenney <paulmck@xxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> Cc: Namhyung Kim <namhyung@xxxxxxxxxx> Cc: Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx> Cc: bpf@xxxxxxxxxxxxxxx Cc: Joel Fernandes <joel@xxxxxxxxxxxxxxxxx> Cc: Jordan Rife <jrife@xxxxxxxxxx> Mathieu Desnoyers (4): tracing: Introduce tracepoint extended structure tracing: Introduce tracepoint_is_faultable() tracing: Fix syscall tracepoint use-after-free tracing: Add might_fault() check in __DECLARE_TRACE_SYSCALL include/linux/tracepoint-defs.h | 10 ++++++-- include/linux/tracepoint.h | 44 ++++++++++++++++++++++++++++----- include/trace/define_trace.h | 2 +- kernel/tracepoint.c | 20 ++++++++------- 4 files changed, 58 insertions(+), 18 deletions(-) -- 2.39.5
