Toke Høiland-Jørgensen 5f4e51abfb cpumap: Zero-initialise xdp_rxq_info struct before running XDP program ... [ Upstream commit 2487007aa3 ] When running an XDP program that is attached to a cpumap entry, we don't initialise the xdp_rxq_info data structure being used in the xdp_buff that backs the XDP program invocation. Tobias noticed that this leads to random values being returned as the xdp_md->rx_queue_index value for XDP programs running in a cpumap. This means we're basically returning the contents of the uninitialised memory, which is bad. Fix this by zero-initialising the rxq data structure before running the XDP program. Fixes: 9216477449 ("bpf: cpumap: Add the possibility to attach an eBPF program to cpumap") Reported-by: Tobias Böhm <tobias@aibor.de> Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20240305213132.11955-1-toke@redhat.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-03-15 10:48:15 -04:00
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preload
arraymap.c	bpf: Add map and need_defer parameters to .map_fd_put_ptr()	2024-02-23 08:42:07 +01:00
bpf_inode_storage.c
bpf_iter.c
bpf_local_storage.c	bpf: Annotate data races in bpf_local_storage	2023-05-30 12:57:48 +01:00
bpf_lru_list.c	bpf: Address KCSAN report on bpf_lru_list	2023-07-27 08:44:38 +02:00
bpf_lru_list.h	bpf: Address KCSAN report on bpf_lru_list	2023-07-27 08:44:38 +02:00
bpf_lsm.c
bpf_struct_ops.c
bpf_struct_ops_types.h
btf.c	bpf/btf: Accept function names that contain dots	2023-06-28 10:28:16 +02:00
cgroup.c	bpf: Remove extra lock_sock for TCP_ZEROCOPY_RECEIVE	2023-07-27 08:43:37 +02:00
core.c	bpf: Detect IP == ksym.end as part of BPF program	2023-11-28 16:54:49 +00:00
cpumap.c	cpumap: Zero-initialise xdp_rxq_info struct before running XDP program	2024-03-15 10:48:15 -04:00
devmap.c
disasm.c
disasm.h
dispatcher.c
hashtab.c	bpf: Add map and need_defer parameters to .map_fd_put_ptr()	2024-02-23 08:42:07 +01:00
helpers.c
inode.c
local_storage.c
lpm_trie.c	bpf, lpm: Fix check prefixlen before walking trie	2024-01-25 14:37:43 -08:00
Makefile
map_in_map.c	bpf: Add map and need_defer parameters to .map_fd_put_ptr()	2024-02-23 08:42:07 +01:00
map_in_map.h	bpf: Add map and need_defer parameters to .map_fd_put_ptr()	2024-02-23 08:42:07 +01:00
map_iter.c
net_namespace.c
offload.c
percpu_freelist.c	bpf: Initialize same number of free nodes for each pcpu_freelist	2022-11-25 17:45:45 +01:00
percpu_freelist.h
prog_iter.c
queue_stack_maps.c	bpf: Avoid deadlock when using queue and stack maps from NMI	2023-10-10 21:53:26 +02:00
reuseport_array.c
ringbuf.c
stackmap.c	bpf: Add crosstask check to __bpf_get_stack	2024-01-25 14:37:43 -08:00
syscall.c	bpf: Set uattr->batch.count as zero before batched update or deletion	2024-02-23 08:42:07 +01:00
sysfs_btf.c
task_iter.c
tnum.c
trampoline.c	bpf: Fix potential array overflow in bpf_trampoline_get_progs()	2022-06-06 08:42:45 +02:00
verifier.c	bpf: Fix verification of indirect var-off stack access	2024-01-25 14:37:44 -08:00