Alexei Starovoitov c3de6317d7 bpf: fix verifier memory corruption ... Due to missing bounds check the DAG pass of the BPF verifier can corrupt the memory which can cause random crashes during program loading: [8.449451] BUG: unable to handle kernel paging request at ffffffffffffffff [8.451293] IP: [<ffffffff811de33d>] kmem_cache_alloc_trace+0x8d/0x2f0 [8.452329] Oops: 0000 [#1] SMP [8.452329] Call Trace: [8.452329] [<ffffffff8116cc82>] bpf_check+0x852/0x2000 [8.452329] [<ffffffff8116b7e4>] bpf_prog_load+0x1e4/0x310 [8.452329] [<ffffffff811b190f>] ? might_fault+0x5f/0xb0 [8.452329] [<ffffffff8116c206>] SyS_bpf+0x806/0xa30 Fixes: f1bca824da ("bpf: add search pruning optimization to verifier") Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-04-16 12:06:11 -04:00
..
arraymap.c	ebpf: constify various function pointer structs	2015-03-01 14:05:18 -05:00
core.c	ebpf: add helper for obtaining current processor id	2015-03-15 21:57:25 -04:00
hashtab.c	ebpf: constify various function pointer structs	2015-03-01 14:05:18 -05:00
helpers.c	ebpf: add helper for obtaining current processor id	2015-03-15 21:57:25 -04:00
Makefile	ebpf: remove kernel test stubs	2015-03-01 14:05:18 -05:00
syscall.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-04-15 09:00:47 -07:00
verifier.c	bpf: fix verifier memory corruption	2015-04-16 12:06:11 -04:00