android_kernel_motorola_sm6375/kernel/bpf
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Yuntao Wang e804587ecd bpf: Fix incorrect memory charge cost calculation in stack_map_alloc()
commit b45043192b3e481304062938a6561da2ceea46a6 upstream.

This is a backport of the original upstream patch for 5.4/5.10.

The original upstream patch has been applied to 5.4/5.10 branches, which
simply removed the line:

  cost += n_buckets * (value_size + sizeof(struct stack_map_bucket));

This is correct for upstream branch but incorrect for 5.4/5.10 branches,
as the 5.4/5.10 branches do not have the commit 370868107bf6 ("bpf:
Eliminate rlimit-based memory accounting for stackmap maps"), so the
bpf_map_charge_init() function has not been removed.

Currently the bpf_map_charge_init() function in 5.4/5.10 branches takes a
wrong memory charge cost, the

  attr->max_entries * (sizeof(struct stack_map_bucket) + (u64)value_size))

part is missing, let's fix it.

Cc: <stable@vger.kernel.org> # 5.4.y
Cc: <stable@vger.kernel.org> # 5.10.y
Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-22 14:11:02 +02:00
..
arraymap.c
bpf_lru_list.c bpf_lru_list: Read double-checked variable once without lock 2021-03-04 10:26:16 +01:00
bpf_lru_list.h
btf.c
cgroup.c bpf, cgroup: Fix problematic bounds check 2021-02-10 09:25:27 +01:00
core.c bpf: Prevent increasing bpf_jit_limit above max 2021-11-17 09:48:20 +01:00
cpumap.c
devmap.c bpf: Fix integer overflow in argument calculation for bpf_map_area_alloc 2021-12-17 10:12:24 +01:00
disasm.c bpf: Introduce BPF nospec instruction for mitigating Spectre v4 2021-09-15 09:47:38 +02:00
disasm.h
hashtab.c bpf: Zero-fill re-used per-cpu map element 2020-11-18 19:20:26 +01:00
helpers.c bpf: Fix helper bpf_map_peek_elem_proto pointing to wrong callback 2021-01-23 15:57:56 +01:00
inode.c bpf: Fix a rcu warning for bpffs map pretty-print 2020-10-01 13:18:19 +02:00
local_storage.c
lpm_trie.c
Makefile bpf: Don't rely on GCC __attribute__((optimize)) to disable GCSE 2020-11-18 19:20:26 +01:00
map_in_map.c
map_in_map.h
offload.c
percpu_freelist.c
percpu_freelist.h
queue_stack_maps.c
reuseport_array.c
stackmap.c bpf: Fix incorrect memory charge cost calculation in stack_map_alloc() 2022-06-22 14:11:02 +02:00
syscall.c bpf: Add kconfig knob for disabling unpriv bpf by default 2022-02-16 12:52:49 +01:00
sysfs_btf.c bpf: Fix sysfs export of empty BTF section 2020-10-14 10:32:58 +02:00
tnum.c
verifier.c bpf: Fix the off-by-two error in range markings 2021-12-14 14:48:59 +01:00
xskmap.c