Andrea Righi 23579010cf bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP ... On x86-64 calling bpf_get_smp_processor_id() in a kernel with CONFIG_SMP disabled can trigger the following bug, as pcpu_hot is unavailable: [ 8.471774] BUG: unable to handle page fault for address: 00000000936a290c [ 8.471849] #PF: supervisor read access in kernel mode [ 8.471881] #PF: error_code(0x0000) - not-present page Fix by inlining a return 0 in the !CONFIG_SMP case. Fixes: 1ae6921009 ("bpf: inline bpf_get_smp_processor_id() helper") Signed-off-by: Andrea Righi <arighi@nvidia.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241217195813.622568-1-arighi@nvidia.com		2024-12-17 16:09:24 -08:00
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preload
arena.c
arraymap.c
bloom_filter.c
bpf_cgrp_storage.c
bpf_inode_storage.c
bpf_iter.c
bpf_local_storage.c
bpf_lru_list.c
bpf_lru_list.h
bpf_lsm.c
bpf_struct_ops.c
bpf_task_storage.c
btf_iter.c
btf_relocate.c
btf.c
cgroup_iter.c
cgroup.c
core.c
cpumap.c
cpumask.c
crypto.c
devmap.c
disasm.c
disasm.h
dispatcher.c
hashtab.c
helpers.c
inode.c
Kconfig
kmem_cache_iter.c
link_iter.c
local_storage.c
log.c
lpm_trie.c
Makefile
map_in_map.c
map_in_map.h
map_iter.c
memalloc.c
mmap_unlock_work.h
mprog.c
net_namespace.c
offload.c
percpu_freelist.c
percpu_freelist.h
prog_iter.c
queue_stack_maps.c
range_tree.c
range_tree.h
relo_core.c
reuseport_array.c
ringbuf.c
stackmap.c
syscall.c
sysfs_btf.c
task_iter.c
tcx.c
tnum.c
token.c
trampoline.c
verifier.c