kernel-ark/kernel/bpf
Rabin Vincent 229394e8e6 net: bpf: reject invalid shifts
On ARM64, a BUG() is triggered in the eBPF JIT if a filter with a
constant shift that can't be encoded in the immediate field of the
UBFM/SBFM instructions is passed to the JIT.  Since these shifts
amounts, which are negative or >= regsize, are invalid, reject them in
the eBPF verifier and the classic BPF filter checker, for all
architectures.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-12 17:06:53 -05:00
..
arraymap.c bpf: fix allocation warnings in bpf maps and integer overflow 2015-12-02 23:36:00 -05:00
core.c bpf: move clearing of A/X into classic to eBPF migration prologue 2015-12-18 16:04:51 -05:00
hashtab.c bpf: hash: use per-bucket spinlock 2015-12-29 15:13:44 -05:00
helpers.c bpf: split state from prandom_u32() and consolidate {c, e}BPF prngs 2015-10-08 05:26:39 -07:00
inode.c bpf, inode: allow for rename and link ops 2015-12-12 18:44:23 -05:00
Makefile bpf: add support for persistent maps/progs 2015-11-02 22:48:39 -05:00
syscall.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-03 21:09:12 -05:00
verifier.c net: bpf: reject invalid shifts 2016-01-12 17:06:53 -05:00