Bui Quang Minh 7dd5d437c2 bpf: Fix integer overflow in argument calculation for bpf_map_area_alloc ... 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: 0d2c4f9640 ("bpf: Eliminate rlimit-based memory accounting for sockmap and sockhash maps") Fixes: 99c51064fb ("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		2021-06-22 10:14:29 -07:00
..
preload	bpf: Fix umd memory leak in copy_process()	2021-03-19 22:23:19 +01:00
arraymap.c	bpf: Add batched ops support for percpu array	2021-04-28 01:17:45 +02:00
bpf_inode_storage.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-03-25 15:31:22 -07:00
bpf_iter.c	bpf: Add bpf_for_each_map_elem() helper	2021-02-26 13:23:52 -08:00
bpf_local_storage.c	bpf: Prevent deadlock from recursive bpf_task_storage_[get|delete]	2021-02-26 11:51:48 -08:00
bpf_lru_list.c	bpf_lru_list: Read double-checked variable once without lock	2021-02-10 15:54:26 -08:00
bpf_lru_list.h	bpf: Fix a typo "inacitve" -> "inactive"	2020-04-06 21:54:10 +02:00
bpf_lsm.c	bpf: Fix BPF_LSM kconfig symbol dependency	2021-05-25 21:16:23 +02:00
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: Fix fexit trampoline.	2021-03-18 00:22:51 +01:00
bpf_task_storage.c	bpf: Make symbol 'bpf_task_storage_busy' static	2021-03-16 12:24:20 -07:00
btf.c	bpf: Forbid trampoline attach for functions with variable arguments	2021-05-07 01:28:28 +02:00
cgroup.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2021-02-16 13:14:06 -08:00
core.c	bpf: Remove unused parameter from ___bpf_prog_run	2021-04-03 01:38:52 +02:00
cpumap.c	bpf, cpumap: Bulk skb using netif_receive_skb_list	2021-04-27 17:13:49 +02:00
devmap.c	bpf: Fix integer overflow in argument calculation for bpf_map_area_alloc	2021-06-22 10:14:29 -07:00
disasm.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-04-09 20:48:35 -07:00
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	kernel/bpf/: Fix misspellings using codespell tool	2021-03-16 12:22:20 -07:00
helpers.c	bpf, lockdown, audit: Fix buggy SELinux lockdown permission checks	2021-06-02 21:59:22 +02:00
inode.c	bpf: Fix regression on BPF_OBJ_GET with non-O_RDWR flags	2021-06-22 14:57:43 +02:00
Kconfig	bpf: Fix BPF_JIT kconfig symbol dependency	2021-05-20 23:48:37 +02:00
local_storage.c	bpf: Fix NULL pointer dereference in bpf_get_local_storage() helper	2021-03-25 18:31:36 -07:00
lpm_trie.c	bpf: Add support for batched ops in LPM trie maps	2021-03-25 18:51:08 -07:00
Makefile	bpf: Enable task local storage for tracing programs	2021-02-26 11:51:47 -08:00
map_in_map.c	bpf: Relax max_entries check for most of the inner map types	2020-08-28 15:41:30 +02:00
map_in_map.h	bpf: Add map_meta_equal map ops	2020-08-28 15:41:30 +02:00
map_iter.c	bpf: Implement link_query callbacks in map element iterators	2020-08-21 14:01:39 -07:00
net_namespace.c	bpf: Add support for forced LINK_DETACH command	2020-08-01 20:38:28 -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: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI	2020-10-06 00:04:11 +02:00
percpu_freelist.h	bpf: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI	2020-10-06 00:04:11 +02:00
prog_iter.c	bpf: Refactor bpf_iter_reg to have separate seq_info member	2020-07-25 20:16:32 -07:00
queue_stack_maps.c	bpf: Eliminate rlimit-based memory accounting for queue_stack_maps maps	2020-12-02 18:32:46 -08:00
reuseport_array.c	bpf: Eliminate rlimit-based memory accounting for reuseport_array maps	2020-12-02 18:32:47 -08:00
ringbuf.c	bpf: Prevent writable memory-mapping of read-only ringbuf pages	2021-05-11 13:31:10 +02:00
stackmap.c	bpf: Refcount task stack in bpf_get_task_stack	2021-04-01 13:58:07 -07:00
syscall.c	bpf: Add kconfig knob for disabling unpriv bpf by default	2021-05-11 13:56:16 -07:00
sysfs_btf.c	bpf: Load and verify kernel module BTFs	2020-11-10 15:25:53 -08:00
task_iter.c	bpf: Introduce task_vma bpf_iter	2021-02-12 12:56:53 -08:00
tnum.c	bpf: Verifier, do explicit ALU32 bounds tracking	2020-03-30 14:59:53 -07:00
trampoline.c	bpf: Allow trampoline re-attach for tracing and lsm programs	2021-04-25 21:09:01 -07:00
verifier.c	bpf: Fix leakage under speculation on mispredicted branches	2021-06-14 23:06:10 +02:00