Eric Dumazet 6eca013bef bpf: fix divides by zero ...

[ upstream commit c366287ebd ]

Divides by zero are not nice, lets avoid them if possible.

Also do_div() seems not needed when dealing with 32bit operands,
but this seems a minor detail.

Fixes: bd4cf0ed33 ("net: filter: rework/optimize internal BPF interpreter's instruction set")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-01-31 14:03:50 +01:00

..

arraymap.c

bpf, array: fix overflow in max_entries and undefined behavior in index_mask

2018-01-17 09:45:25 +01:00

bpf_lru_list.c

bpf: lru: Lower the PERCPU_NR_SCANS from 16 to 4

2017-04-17 13:55:52 -04:00

bpf_lru_list.h

bpf: Only set node->ref = 1 if it has not been set

2017-09-01 09:57:39 -07:00

cgroup.c

bpf: BPF support for sock_ops

2017-07-01 16:15:13 -07:00

core.c

bpf: fix divides by zero

2018-01-31 14:03:50 +01:00

devmap.c

bpf: devmap fix arithmetic overflow in bitmap_size calculation

2017-10-22 00:54:09 +01:00

hashtab.c

bpf: do not test for PCPU_MIN_UNIT_SIZE before percpu allocations

2017-10-19 13:13:50 +01:00

helpers.c

bpf: rename ARG_PTR_TO_STACK

2017-01-09 16:56:27 -05:00

inode.c

netfilter: xt_bpf: Fix XT_BPF_MODE_FD_PINNED mode of 'xt_bpf_info_v1'

2017-10-09 15:18:04 +02:00

lpm_trie.c

bpf: Allow selecting numa node during map creation

2017-08-19 21:35:43 -07:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

map_in_map.c

bpf: Add syscall lookup support for fd array and htab

2017-06-29 13:13:25 -04:00

map_in_map.h

bpf: Add syscall lookup support for fd array and htab

2017-06-29 13:13:25 -04:00

percpu_freelist.c

bpf: fix lockdep splat

2017-12-14 09:53:11 +01:00

percpu_freelist.h

bpf: introduce percpu_freelist

2016-03-08 15:28:31 -05:00

sockmap.c

bpf: remove SK_REDIRECT from UAPI

2017-11-01 11:43:50 +09:00

stackmap.c

bpf: Allow selecting numa node during map creation

2017-08-19 21:35:43 -07:00

syscall.c

bpf: do not disable/enable BH in bpf_map_free_id()

2017-09-19 15:42:54 -07:00

tnum.c

bpf/verifier: track signed and unsigned min/max values

2017-08-08 17:51:34 -07:00

verifier.c

bpf: arsh is not supported in 32 bit alu thus reject it

2018-01-17 09:45:25 +01:00