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linux-next/kernel/bpf
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Andrii Nakryiko 0acd03a5bd bpf: enforce precision of R0 on callback return 
Given verifier checks actual value, r0 has to be precise, so we need to
propagate precision properly. r0 also has to be marked as read,
otherwise subsequent state comparisons will ignore such register as
unimportant and precision won't really help here.

Fixes: 69c087ba6225 ("bpf: Add bpf_for_each_map_elem() helper")
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231202175705.885270-4-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-12-02 11:36:50 -08:00
..
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
Networking changes for 6.4.
2023-04-26 16:07:23 -07:00
bpf_iter.c
bpf: Add __bpf_kfunc_{start,end}_defs macros
2023-11-01 22:33:53 -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: Add dummy BPF STRUCT_OPS for test purpose
2021-11-01 14:10:00 -07:00
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: Move GRAPH_{ROOT,NODE}_MASK macros into btf_field_type enum
2023-11-09 19:07:51 -08:00
cgroup_iter.c
bpf: Let verifier consider {task,cgroup} is trusted in bpf_iter_reg
2023-11-07 15:24:25 -08:00
cgroup.c
for-6.7/io_uring-sockopt-2023-10-30
2023-11-01 11:16:34 -10:00
core.c
bpf: Do not allocate percpu memory at init stage
2023-11-15 07:51:06 -08:00
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: Add __bpf_kfunc_{start,end}_defs macros
2023-11-01 22:33:53 -07:00
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
bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause
2021-09-02 14:49:23 +02:00
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: Add a new kfunc for cgroup1 hierarchy
2023-11-14 08:56:56 -08:00
inode.c
bpf: convert to new timestamp accessors
2023-10-18 14:08:30 +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
bpf: Add bpf_link iterator
2022-05-10 11:20:45 -07:00
local_storage.c
cgroup changes for v6.4-rc1
2023-04-29 10:05:22 -07:00
log.c
bpf: emit frameno for PTR_TO_STACK regs if it differs from current one
2023-11-18 11:39:59 -08:00
lpm_trie.c
bpf, lpm: Fix check prefixlen before walking trie
2023-11-09 19:07:38 -08:00
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
bpf: Add map_meta_equal map ops
2020-08-28 15:41:30 +02:00
map_iter.c
bpf: Add __bpf_kfunc_{start,end}_defs macros
2023-11-01 22:33:53 -07:00
memalloc.c
bpf: Add missed allocation hint for bpf_mem_cache_alloc_flags()
2023-11-26 18:00:26 -08:00
mmap_unlock_work.h
bpf: Introduce helper bpf_find_vma
2021-11-07 11:54:51 -08:00
mprog.c
bpf: Handle bpf_mprog_query with NULL entry
2023-10-06 17:11:20 -07:00
net_namespace.c
net: Add includes masked by netdevice.h including uapi/bpf.h
2021-12-29 20:03:05 -08:00
offload.c
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
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: 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: Add crosstask check to __bpf_get_stack
2023-11-10 11:06:10 -08:00
syscall.c
bpf: rename BPF_F_TEST_SANITY_STRICT to BPF_F_TEST_REG_INVARIANTS
2023-11-17 10:30:02 -08:00
sysfs_btf.c
bpf: Load and verify kernel module BTFs
2020-11-10 15:25:53 -08:00
task_iter.c
bpf: bpf_iter_task_next: use next_task(kit->task) rather than next_task(kit->pos)
2023-11-19 11:43:44 -08:00
tcx.c
bpf, tcx: Get rid of tcx_link_const
2023-10-23 15:01:53 -07:00
tnum.c
bpf: generalize reg_set_min_max() to handle non-const register comparisons
2023-11-15 12:03:41 -08:00
trampoline.c
bpf, x64: Fix tailcall infinite loop
2023-09-12 13:06:12 -07:00
verifier.c
bpf: enforce precision of R0 on callback return
2023-12-02 11:36:50 -08:00