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| author | Toke Høiland-Jørgensen <[email protected]> | 2024-03-05 21:31:32 +0000 |
|---|---|---|
| committer | Martin KaFai Lau <[email protected]> | 2024-03-06 00:48:53 +0000 |
| commit | 2487007aa3b9fafbd2cb14068f49791ce1d7ede5 (patch) | |
| tree | b3ecf09e17cc47833c8e8a196655e3924bbd911c /drivers/net/ethernet/intel/ice/ice_lib.c | |
| parent | selftests/bpf: Fix up xdp bonding test wrt feature flags (diff) | |
| download | kernel-2487007aa3b9fafbd2cb14068f49791ce1d7ede5.tar.gz kernel-2487007aa3b9fafbd2cb14068f49791ce1d7ede5.zip | |
cpumap: Zero-initialise xdp_rxq_info struct before running XDP program
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: 9216477449f3 ("bpf: cpumap: Add the possibility to attach an eBPF program to cpumap")
Reported-by: Tobias Böhm <[email protected]>
Signed-off-by: Toke Høiland-Jørgensen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Martin KaFai Lau <[email protected]>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_lib.c')
0 files changed, 0 insertions, 0 deletions