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99c51064fb06146b3d494b745c947e438a10aaa7
linux/kernel/bpf
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Toke Høiland-Jørgensen 99c51064fb devmap: Use bpf_map_area_alloc() for allocating hash buckets 
Syzkaller discovered that creating a hash of type devmap_hash with a large
number of entries can hit the memory allocator limit for allocating
contiguous memory regions. There's really no reason to use kmalloc_array()
directly in the devmap code, so just switch it to the existing
bpf_map_area_alloc() function that is used elsewhere.

Fixes: 6f9d451ab1 ("xdp: Add devmap_hash map type for looking up devices by hashed index")
Reported-by: Xiumei Mu <xmu@redhat.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200616142829.114173-1-toke@redhat.com
2020-06-17 10:01:19 -07:00
..
arraymap.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-05-15 13:48:59 -07:00
bpf_iter.c
bpf: Enable bpf_iter targets registering ctx argument types
2020-05-13 12:30:50 -07:00
bpf_lru_list.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
bpf_lru_list.h
bpf: Fix a typo "inacitve" -> "inactive"
2020-04-06 21:54:10 +02:00
bpf_lsm.c
bpf: Use tracing helpers for lsm programs
2020-06-01 15:08:04 -07:00
bpf_struct_ops_types.h
bpf: tcp: Support tcp_congestion_ops in bpf
2020-01-09 08:46:18 -08:00
bpf_struct_ops.c
bpf: Implement CAP_BPF
2020-05-15 17:29:41 +02:00
btf.c
bpf: Enable bpf_iter targets registering ctx argument types
2020-05-13 12:30:50 -07:00
cgroup.c
bpf: cgroup: Allow multi-attach program to replace itself
2020-06-09 11:21:43 -07:00
core.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-06-03 16:27:18 -07:00
cpumap.c
xdp: Rename convert_to_xdp_frame in xdp_convert_buff_to_frame
2020-06-01 15:02:53 -07:00
devmap.c
devmap: Use bpf_map_area_alloc() for allocating hash buckets
2020-06-17 10:01:19 -07:00
disasm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295
2019-06-05 17:36:38 +02:00
disasm.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295
2019-06-05 17:36:38 +02:00
dispatcher.c
bpf: Remove bpf_image tree
2020-03-13 12:49:52 -07:00
hashtab.c
bpf: Implement CAP_BPF
2020-05-15 17:29:41 +02:00
helpers.c
bpf: Implement BPF ring buffer and verifier support for it
2020-06-01 14:38:22 -07:00
inode.c
bpf: Create file bpf iterator
2020-05-09 17:05:26 -07:00
local_storage.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2019-12-22 09:54:33 -08:00
lpm_trie.c
bpf: Implement CAP_BPF
2020-05-15 17:29:41 +02:00
Makefile
flow_dissector: Move out netns_bpf prog callbacks
2020-06-01 15:21:02 -07:00
map_in_map.c
bpf: Implement CAP_BPF
2020-05-15 17:29:41 +02:00
map_in_map.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
map_iter.c
bpf: Enable bpf_iter targets registering ctx argument types
2020-05-13 12:30:50 -07:00
net_namespace.c
bpf: Add link-based BPF program attachment to network namespace
2020-06-01 15:21:03 -07:00
offload.c
bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill
2020-02-17 16:53:49 +01:00
percpu_freelist.c
bpf: Dont iterate over possible CPUs with interrupts disabled
2020-02-24 16:18:20 -08:00
percpu_freelist.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
queue_stack_maps.c
bpf: Implement CAP_BPF
2020-05-15 17:29:41 +02:00
reuseport_array.c
bpf: Implement CAP_BPF
2020-05-15 17:29:41 +02:00
ringbuf.c
bpf: Implement BPF ring buffer and verifier support for it
2020-06-01 14:38:22 -07:00
stackmap.c
mmap locking API: add mmap_read_trylock_non_owner()
2020-06-09 09:39:14 -07:00
syscall.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-06-13 16:27:13 -07:00
sysfs_btf.c
bpf: Support llvm-objcopy for vmlinux BTF
2020-03-19 12:32:38 +01:00
task_iter.c
bpf: Fix bpf_iter's task iterator logic
2020-05-14 18:37:32 -07:00
tnum.c
bpf: Verifier, do explicit ALU32 bounds tracking
2020-03-30 14:59:53 -07:00
trampoline.c
bpf: lsm: Implement attach, detach and execution
2020-03-30 01:34:00 +02:00
verifier.c
bpf: Fix an error code in check_btf_func()
2020-06-04 23:38:54 +02:00