linux/tools/testing/selftests/net/lib
Amery Hung 11ae737efe selftests: drv-net: Reload pkt pointer after calling filter_udphdr
Fix a verification failure. filter_udphdr() calls bpf_xdp_pull_data(),
which will invalidate all pkt pointers. Therefore, all ctx->data loaded
before filter_udphdr() cannot be used. Reload it to prevent verification
errors.

The error may not appear on some compiler versions if they decide to
load ctx->data after filter_udphdr() when it is first used.

Fixes: efec2e55bd ("selftests: drv-net: Pull data before parsing headers")
Signed-off-by: Amery Hung <ameryhung@gmail.com>
Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20250925161452.1290694-1-ameryhung@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-26 13:54:46 -07:00
..
py selftests: net: py: don't default to shell=True 2025-09-02 16:09:36 -07:00
sh selftests: defer: Introduce DEFER_PAUSE_ON_FAIL 2025-09-11 19:02:51 -07:00
.gitignore selftests: net: move xdp_helper to net/lib 2025-04-28 15:49:10 -07:00
csum.c selftests: net: csum: Clean up recv_verify_packet_ipv6 2024-10-03 16:44:28 -07:00
ksft.h selftests: net: move xdp_helper to net/lib 2025-04-28 15:49:10 -07:00
Makefile selftests: net: move xdp_helper to net/lib 2025-04-28 15:49:10 -07:00
xdp_dummy.bpf.c selftests: drv-net: add xdp cases for ping.py 2025-03-10 13:31:12 -07:00
xdp_helper.c selftests: net: retry when bind returns EBUSY in xdp_helper 2025-04-28 15:49:10 -07:00
xdp_native.bpf.c selftests: drv-net: Reload pkt pointer after calling filter_udphdr 2025-09-26 13:54:46 -07:00