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linux/kernel/bpf
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Kuniyuki Iwashima 0947ae1121 bpf: Fix a data-race around bpf_jit_limit. 
While reading bpf_jit_limit, it can be changed concurrently via sysctl,
WRITE_ONCE() in __do_proc_doulongvec_minmax(). The size of bpf_jit_limit
is long, so we need to add a paired READ_ONCE() to avoid load-tearing.

Fixes: ede95a63b5e8 ("bpf: add bpf_jit_limit knob to restrict unpriv allocations")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220823215804.2177-1-kuniyu@amazon.com
2022-08-24 00:27:14 +02:00
..
preload
bpf: iterators: Build and use lightweight bootstrap version of bpftool
2022-07-15 12:01:30 -07:00
arraymap.c
bpf: Acquire map uref in .init_seq_private for array map iterator
2022-08-10 10:12:47 -07:00
bloom_filter.c
bpf: Compute map_btf_id during build time
2022-04-26 11:35:21 -07:00
bpf_inode_storage.c
bpf: Compute map_btf_id during build time
2022-04-26 11:35:21 -07:00
bpf_iter.c
bpf: Only allow sleepable program for resched-able iterator
2022-08-10 10:12:48 -07:00
bpf_local_storage.c
bpf: Fix usage of trace RCU in local storage.
2022-04-19 17:55:45 -07:00
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
printk: stop including cache.h from printk.h
2022-05-13 07:20:07 -07:00
bpf_lsm.c
bpf: fix lsm_cgroup build errors on esoteric configs
2022-07-19 09:40:41 -07:00
bpf_struct_ops_types.h
bpf: Add dummy BPF STRUCT_OPS for test purpose
2021-11-01 14:10:00 -07:00
bpf_struct_ops.c
bpf: Remove is_valid_bpf_tramp_flags()
2022-07-11 21:04:58 +02:00
bpf_task_storage.c
bpf: Compute map_btf_id during build time
2022-04-26 11:35:21 -07:00
btf.c
bpf: btf: Fix vsnprintf return value check
2022-07-29 09:57:14 -07:00
cgroup.c
bpf, cgroup: Fix kernel BUG in purge_effective_progs
2022-08-18 23:27:33 +02:00
core.c
bpf: Fix a data-race around bpf_jit_limit.
2022-08-24 00:27:14 +02:00
cpumap.c
bpf: Compute map_btf_id during build time
2022-04-26 11:35:21 -07:00
devmap.c
bpf, devmap: Compute proper xdp_frame len redirecting frames
2022-07-26 16:26:19 +02:00
disasm.c
bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause
2021-09-02 14:49:23 +02:00
disasm.h
bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause
2021-09-02 14:49:23 +02:00
dispatcher.c
bpf: Remove bpf_image tree
2020-03-13 12:49:52 -07:00
hashtab.c
bpf: Acquire map uref in .init_seq_private for hash map iterator
2022-08-10 10:12:47 -07:00
helpers.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-14 15:27:35 -07:00
inode.c
bpf: Convert bpf_preload.ko to use light skeleton.
2022-02-10 23:31:51 +01:00
Kconfig
rcu: Make the TASKS_RCU Kconfig option be selected
2022-04-20 16:52:58 -07:00
link_iter.c
bpf: Add bpf_link iterator
2022-05-10 11:20:45 -07:00
local_storage.c
bpf: Make non-preallocated allocation low priority
2022-07-12 17:44:27 -07:00
lpm_trie.c
bpf: Make non-preallocated allocation low priority
2022-07-12 17:44:27 -07:00
Makefile
bpf: Add bpf_link iterator
2022-05-10 11:20:45 -07:00
map_in_map.c
bpf: Allow storing unreferenced kptr in map
2022-04-25 17:31:35 -07:00
map_in_map.h
bpf: Add map_meta_equal map ops
2020-08-28 15:41:30 +02:00
map_iter.c
bpf: Introduce MEM_RDONLY flag
2021-12-18 13:27:41 -08:00
mmap_unlock_work.h
bpf: Introduce helper bpf_find_vma
2021-11-07 11:54:51 -08:00
net_namespace.c
net: Add includes masked by netdevice.h including uapi/bpf.h
2021-12-29 20:03:05 -08:00
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: avoid grabbing spin_locks of all cpus when no free elems
2022-06-11 14:25:35 -07:00
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: Compute map_btf_id during build time
2022-04-26 11:35:21 -07:00
reuseport_array.c
net: refactor bpf_sk_reuseport_detach()
2022-08-10 21:48:04 -07:00
ringbuf.c
bpf: Dynptr support for ring buffers
2022-05-23 14:31:28 -07:00
stackmap.c
bpf: Compute map_btf_id during build time
2022-04-26 11:35:21 -07:00
syscall.c
bpf: Restrict bpf_sys_bpf to CAP_PERFMON
2022-08-18 00:27:49 +02:00
sysfs_btf.c
bpf: Load and verify kernel module BTFs
2020-11-10 15:25:53 -08:00
task_iter.c
bpf: Remove redundant assignment to meta.seq in __task_seq_show()
2022-04-11 21:14:34 +02:00
tnum.c
bpf, tnums: Provably sound, faster, and more precise algorithm for tnum_mul
2021-06-01 13:34:15 +02:00
trampoline.c
bpf: Cleanup ftrace hash in bpf_trampoline_put
2022-08-05 09:43:58 -07:00
verifier.c
bpf: Switch to new kfunc flags infrastructure
2022-07-21 20:59:42 -07:00