Jakub Kicinski 6ed7864a5c bpftool: Fix truncated netlink dumps ...

[ Upstream commit 3b39d73cc3 ]

Netlink requires that the recv buffer used during dumps is at least
min(PAGE_SIZE, 8k) (see the man page). Otherwise the messages will
get truncated. Make sure bpftool follows this requirement, avoid
missing information on systems with large pages.

Acked-by: Quentin Monnet <qmo@kernel.org>
Fixes: 7084566a23 ("tools/bpftool: Remove libbpf_internal.h usage in bpftool")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20260217194150.734701-1-kuba@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-03-04 07:20:38 -05:00

..

.gitignore

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bpf_core_read.h

bpf: Fix uninitialized values in BPF_{CORE,PROBE}_READ

2025-06-19 15:31:46 +02:00

bpf_endian.h

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bpf_gen_internal.h

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bpf_helpers.h

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bpf_prog_linfo.c

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bpf_tracing.h

libbpf: Fix powerpc's stack register definition in bpf_tracing.h

2025-11-13 15:33:58 -05:00

bpf.c

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bpf.h

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btf_dump.c

libbpf: Fix OOB read in btf_dump_get_bitfield_value

2026-03-04 07:19:33 -05:00

btf_iter.c

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btf_relocate.c

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btf.c

libbpf: Fix parsing of multi-split BTF

2025-12-18 13:54:53 +01:00

btf.h

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Build

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elf.c

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features.c

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gen_loader.c

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hashmap.c

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hashmap.h

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libbpf_common.h

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libbpf_errno.c

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libbpf_internal.h

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libbpf_legacy.h

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libbpf_probes.c

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libbpf_version.h

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libbpf.c

libbpf: Fix -Wdiscarded-qualifiers under C23

2026-02-06 16:55:49 +01:00

libbpf.h

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libbpf.map

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libbpf.pc.template

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linker.c

libbpf: Use proper errno value in linker

2025-06-19 15:31:45 +02:00

Makefile

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netlink.c

bpftool: Fix truncated netlink dumps

2026-03-04 07:20:38 -05:00

nlattr.c

libbpf: Use proper errno value in nlattr

2025-06-19 15:31:48 +02:00

nlattr.h

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relo_core.c

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relo_core.h

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ringbuf.c

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skel_internal.h

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str_error.c

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str_error.h

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strset.c

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strset.h

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usdt.bpf.h

libbpf: Fix USDT SIB argument handling causing unrecognized register error

2025-11-13 15:34:03 -05:00

usdt.c

libbpf: Fix USDT SIB argument handling causing unrecognized register error

2025-11-13 15:34:03 -05:00

zip.c

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zip.h

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