This set plugs a kernel address leak that occurs if kallsyms symbol look up fails. This set was prompted by a leaking address found using scripts/leaking_addresses.pl on a PowerPC machine in the wild.
Patch set does not change behaviour when KALLSYMS is not defined (suggested by Linus). RFC has been in flight for 3 weeks with no negative response. Patch 1 - return error code if symbol look up fails. Patch 2 - print <no-symbol> to buffer if symbol look up returns an error. Patch 3 - maintain current behaviour in ftrace. Patch 3 (the ftrace stuff) is untested. thanks, Tobin. Tobin C. Harding (3): kallsyms: don't leak address when symbol not found vsprintf: print <no-symbol> if symbol not found trace: print address if symbol not found include/linux/kernel.h | 2 ++ kernel/kallsyms.c | 6 ++++-- kernel/trace/trace.h | 24 ++++++++++++++++++++++++ kernel/trace/trace_events_hist.c | 6 +++--- lib/vsprintf.c | 18 +++++++++++++++--- 5 files changed, 48 insertions(+), 8 deletions(-) -- 2.7.4
