Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Bui Quang Minh f6f1d19114 bpf: Fix integer overflow in argument calculation for bpf_map_area_alloc ... commit 7dd5d437c258bbf4cc15b35229e5208b87b8b4e0 upstream. In 32-bit architecture, the result of sizeof() is a 32-bit integer so the expression becomes the multiplication between 2 32-bit integer which can potentially leads to integer overflow. As a result, bpf_map_area_alloc() allocates less memory than needed. Fix this by casting 1 operand to u64. Fixes: 0d2c4f964050 ("bpf: Eliminate rlimit-based memory accounting for sockmap and sockhash maps") Fixes: 99c51064fb06 ("devmap: Use bpf_map_area_alloc() for allocating hash buckets") Fixes: 546ac1ffb7 ("bpf: add devmap, a map for storing net device references") Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210613143440.71975-1-minhquangbui99@gmail.com Signed-off-by: Connor O'Brien <connoro@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-12-17 10:12:24 +01:00
..
arraymap.c
bpf_lru_list.c	bpf_lru_list: Read double-checked variable once without lock	2021-03-04 10:26:16 +01:00
bpf_lru_list.h
btf.c
cgroup.c	bpf, cgroup: Fix problematic bounds check	2021-02-10 09:25:27 +01:00
core.c	bpf: Prevent increasing bpf_jit_limit above max	2021-11-17 09:48:20 +01:00
cpumap.c
devmap.c	bpf: Fix integer overflow in argument calculation for bpf_map_area_alloc	2021-12-17 10:12:24 +01:00
disasm.c	bpf: Introduce BPF nospec instruction for mitigating Spectre v4	2021-09-15 09:47:38 +02:00
disasm.h
hashtab.c
helpers.c
inode.c
local_storage.c
lpm_trie.c
Makefile
map_in_map.c
map_in_map.h
offload.c
percpu_freelist.c
percpu_freelist.h
queue_stack_maps.c
reuseport_array.c
stackmap.c	bpf: Fix integer overflow in prealloc_elems_and_freelist()	2021-10-13 10:08:18 +02:00
syscall.c
sysfs_btf.c
tnum.c
verifier.c	bpf: Fix the off-by-two error in range markings	2021-12-14 14:48:59 +01:00
xskmap.c