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authorRabin Vincent <rabin@rab.in>2016-01-12 20:17:08 +0100
committerDavid S. Miller <davem@davemloft.net>2016-01-12 21:55:39 +0100
commit06928b3870d213cb42b00e2949419f2d44b9d45f (patch)
treed1427c587b190b02f7d2e5b842c1804f38386128 /drivers/media/usb
parentbonding: Prevent IPv6 link local address on enslaved devices (diff)
downloadlinux-06928b3870d213cb42b00e2949419f2d44b9d45f.tar.xz
linux-06928b3870d213cb42b00e2949419f2d44b9d45f.zip
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>
Diffstat (limited to 'drivers/media/usb')
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