Hou Tao c421c12586 bpf: Add more WARN_ON_ONCE checks for mismatched alloc and free ...

There are two possible mismatched alloc and free cases in BPF memory
allocator:

1) allocate from cache X but free by cache Y with a different unit_size
2) allocate from per-cpu cache but free by kmalloc cache or vice versa

So add more WARN_ON_ONCE checks in free_bulk() and __free_by_rcu() to
spot these mismatched alloc and free early.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20231021014959.3563841-1-houtao@huaweicloud.com

2023-10-26 14:23:33 +02:00

..

preload

bpf: make preloaded map iterators to display map elements count

2023-07-06 12:42:25 -07:00

arraymap.c

bpf: return long from bpf_map_ops funcs

2023-03-22 15:11:30 -07:00

bloom_filter.c

bpf: Centralize permissions checks for all BPF map types

2023-06-19 14:04:04 +02:00

bpf_cgrp_storage.c

bpf: Teach verifier that certain helpers accept NULL pointer.

2023-04-04 16:57:16 -07:00

bpf_inode_storage.c

Merge tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2023-04-26 16:07:23 -07:00

bpf_iter.c

bpf: Don't explicitly emit BTF for struct btf_iter_num

2023-10-13 15:48:58 -07:00

bpf_local_storage.c

bpf: bpf_sk_storage: Fix the missing uncharge in sk_omem_alloc

2023-09-06 11:08:14 +02:00

bpf_lru_list.c

bpf: Address KCSAN report on bpf_lru_list

2023-05-12 12:01:03 -07:00

bpf_lru_list.h

bpf: lru: Remove unused declaration bpf_lru_promote()

2023-08-08 17:21:42 -07:00

bpf_lsm.c

bpf: Fix the kernel crash caused by bpf_setsockopt().

2023-01-26 23:26:40 -08:00

bpf_struct_ops_types.h

…

bpf_struct_ops.c

bpf: Charge modmem for struct_ops trampoline

2023-09-14 15:30:45 -07:00

bpf_task_storage.c

bpf: Teach verifier that certain helpers accept NULL pointer.

2023-04-04 16:57:16 -07:00

btf.c

bpf: Add bpf_sock_addr_set_sun_path() to allow writing unix sockaddr from bpf

2023-10-11 16:29:25 -07:00

cgroup_iter.c

bpf: Introduce css open-coded iterator kfuncs

2023-10-19 17:02:46 -07:00

cgroup.c

bpf: Implement cgroup sockaddr hooks for unix sockets

2023-10-11 17:27:47 -07:00

core.c

Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

2023-09-17 15:12:06 +01:00

cpumap.c

net, bpf: Add a warning if NAPI cb missed xdp_do_flush().

2023-10-17 15:02:03 +02:00

cpumask.c

bpf: Convert bpf_cpumask to bpf_mem_cache_free_rcu.

2023-07-12 23:45:23 +02:00

devmap.c

net, bpf: Add a warning if NAPI cb missed xdp_do_flush().

2023-10-17 15:02:03 +02:00

disasm.c

bpf: change bpf_alu_sign_string and bpf_movsx_string to static

2023-08-04 16:15:50 -07:00

disasm.h

…

dispatcher.c

bpf: Synchronize dispatcher update with bpf_dispatcher_xdp_func

2022-12-14 12:02:14 -08:00

hashtab.c

bpf: Fix unnecessary -EBUSY from htab_lock_bucket

2023-10-24 14:25:55 +02:00

helpers.c

bpf: Use bpf_global_percpu_ma for per-cpu kptr in __bpf_obj_drop_impl()

2023-10-20 14:15:13 -07:00

inode.c

bpf: convert to ctime accessor functions

2023-07-24 10:30:07 +02:00

Kconfig

bpf: Add fd-based tcx multi-prog infra with link support

2023-07-19 10:07:27 -07:00

link_iter.c

…

local_storage.c

Merge tag 'cgroup-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2023-04-29 10:05:22 -07:00

log.c

bpf: drop unnecessary user-triggerable WARN_ONCE in verifierl log

2023-05-16 22:34:50 -07:00

lpm_trie.c

bpf: Centralize permissions checks for all BPF map types

2023-06-19 14:04:04 +02:00

Makefile

bpf: Add fd-based tcx multi-prog infra with link support

2023-07-19 10:07:27 -07:00

map_in_map.c

bpf: Fix elem_size not being set for inner maps

2023-06-02 16:22:12 -07:00

map_in_map.h

…

map_iter.c

bpf: allow any program to use the bpf_map_sum_elem_count kfunc

2023-07-19 09:48:53 -07:00

memalloc.c

bpf: Add more WARN_ON_ONCE checks for mismatched alloc and free

2023-10-26 14:23:33 +02:00

mmap_unlock_work.h

…

mprog.c

bpf: Handle bpf_mprog_query with NULL entry

2023-10-06 17:11:20 -07:00

net_namespace.c

…

offload.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2023-09-21 21:49:45 +02:00

percpu_freelist.c

bpf: Initialize same number of free nodes for each pcpu_freelist

2022-11-11 12:05:14 -08:00

percpu_freelist.h

…

prog_iter.c

…

queue_stack_maps.c

bpf: Avoid deadlock when using queue and stack maps from NMI

2023-09-11 19:04:49 -07:00

reuseport_array.c

bpf: Centralize permissions checks for all BPF map types

2023-06-19 14:04:04 +02:00

ringbuf.c

bpf: Fold smp_mb__before_atomic() into atomic_set_release()

2023-10-24 14:26:07 +02:00

stackmap.c

bpf: Annotate struct bpf_stack_map with __counted_by

2023-10-06 23:44:35 +02:00

syscall.c

netkit, bpf: Add bpf programmable net device

2023-10-24 16:06:03 -07:00

sysfs_btf.c

…

task_iter.c

bpf: Let bpf_iter_task_new accept null task ptr

2023-10-19 17:02:46 -07:00

tcx.c

bpf, tcx: Get rid of tcx_link_const

2023-10-23 15:01:53 -07:00

tnum.c

…

trampoline.c

bpf, x64: Fix tailcall infinite loop

2023-09-12 13:06:12 -07:00

verifier.c

bpf: Improve JEQ/JNE branch taken logic

2023-10-24 14:45:51 +02:00