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linux/kernel/bpf
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Stanislav Fomichev 4be34f3d07 bpf: Don't leak memory in bpf getsockopt when optlen == 0 
optlen == 0 indicates that the kernel should ignore BPF buffer
and use the original one from the user. We, however, forget
to free the temporary buffer that we've allocated for BPF.

Fixes: d8fe449a9c51 ("bpf: Don't return EINVAL from {get,set}sockopt when optlen > PAGE_SIZE")
Reported-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210112162829.775079-1-sdf@google.com
2021-01-12 21:05:07 +01:00
..
preload
bpf: BPF_PRELOAD depends on BPF_SYSCALL
2020-11-05 18:49:29 -08:00
arraymap.c
bpf: Eliminate rlimit-based memory accounting for arraymap maps
2020-12-02 18:32:46 -08:00
bpf_inode_storage.c
bpf: Fix typo in bpf_inode_storage.c
2021-01-12 16:07:57 +01:00
bpf_iter.c
bpf: Permit cond_resched for some iterators
2020-10-28 14:54:31 -07:00
bpf_local_storage.c
bpf: Eliminate rlimit-based memory accounting for bpf local storage maps
2020-12-02 18:32:47 -08:00
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: Add a BPF helper for getting the IMA hash of an inode
2020-11-26 00:04:04 +01:00
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: Eliminate rlimit-based memory accounting for bpf_struct_ops maps
2020-12-02 18:32:46 -08:00
bpf_task_storage.c
bpf: Local storage helpers should check nullness of owner ptr passed
2021-01-12 16:07:56 +01:00
btf.c
bpf: Allow to specify kernel module BTFs when attaching BPF programs
2020-12-03 17:38:21 -08:00
cgroup.c
bpf: Don't leak memory in bpf getsockopt when optlen == 0
2021-01-12 21:05:07 +01:00
core.c
bpf: Eliminate rlimit-based memory accounting for bpf progs
2020-12-02 18:32:47 -08:00
cpumap.c
bpf: Eliminate rlimit-based memory accounting for cpumap maps
2020-12-02 18:32:46 -08:00
devmap.c
bpf: Eliminate rlimit-based memory accounting for devmap maps
2020-12-02 18:32:46 -08:00
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: Add schedule point in htab_init_buckets()
2020-12-22 00:14:31 +01:00
helpers.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-12-11 22:29:38 -08:00
inode.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-09-22 16:45:34 -07:00
local_storage.c
bpf: Eliminate rlimit-based memory accounting for cgroup storage maps
2020-12-02 18:32:46 -08:00
lpm_trie.c
bpf: Eliminate rlimit-based memory accounting for lpm_trie maps
2020-12-02 18:32:46 -08:00
Makefile
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2020-11-14 09:13:41 -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: Eliminate rlimit-based memory accounting for bpf ringbuffer
2020-12-02 18:32:47 -08:00
stackmap.c
Networking updates for 5.11
2020-12-15 13:22:29 -08:00
syscall.c
bpf: Prevent double bpf_prog_put call from bpf_tracing_prog_attach
2021-01-12 00:17:34 +01:00
sysfs_btf.c
bpf: Load and verify kernel module BTFs
2020-11-10 15:25:53 -08:00
task_iter.c
bpf: Fix a task_iter bug caused by a merge conflict resolution
2021-01-03 01:41:32 +01:00
tnum.c
bpf: Verifier, do explicit ALU32 bounds tracking
2020-03-30 14:59:53 -07:00
trampoline.c
bpf: Move prog->aux->linked_prog and trampoline into bpf_link on attach
2020-09-29 13:09:23 -07:00
verifier.c
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2020-12-14 15:34:36 -08:00