Alexei Starovoitov daaf427c6a bpf: fix arraymap NULL deref and missing overflow and zero size checks ... - fix NULL pointer dereference: kernel/bpf/arraymap.c:41 array_map_alloc() error: potential null dereference 'array'. (kzalloc returns null) kernel/bpf/arraymap.c:41 array_map_alloc() error: we previously assumed 'array' could be null (see line 40) - integer overflow check was missing in arraymap (hashmap checks for overflow via kmalloc_array()) - arraymap can round_up(value_size, 8) to zero. check was missing. - hashmap was missing zero size check as well, since roundup_pow_of_two() can truncate into zero - found a typo in the arraymap comment and unnecessary empty line Fix all of these issues and make both overflow checks explicit U32 in size. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-11-19 15:40:00 -05:00
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arraymap.c	bpf: fix arraymap NULL deref and missing overflow and zero size checks	2014-11-19 15:40:00 -05:00
core.c	bpf: split eBPF out of NET	2014-10-27 19:09:59 -04:00
hashtab.c	bpf: fix arraymap NULL deref and missing overflow and zero size checks	2014-11-19 15:40:00 -05:00
helpers.c	bpf: allow eBPF programs to use maps	2014-11-18 13:44:00 -05:00
Makefile	bpf: allow eBPF programs to use maps	2014-11-18 13:44:00 -05:00
syscall.c	bpf: fix BPF_MAP_LOOKUP_ELEM command return code	2014-11-18 13:43:59 -05:00
test_stub.c	bpf: remove test map scaffolding and user proper types	2014-11-18 13:44:00 -05:00
verifier.c	bpf: reduce verifier memory consumption	2014-10-30 15:44:37 -04:00