linux

iv/linux

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Andrii Nakryiko 137df1189d libbpf: Don't assume SHT_GNU_verdef presence for SHT_GNU_versym section

Fix too eager assumption that SHT_GNU_verdef ELF section is going to be
present whenever binary has SHT_GNU_versym section. It seems like either
SHT_GNU_verdef or SHT_GNU_verneed can be used, so failing on missing
SHT_GNU_verdef actually breaks use cases in production.

One specific reported issue, which was used to manually test this fix,
was trying to attach to `readline` function in BASH binary.

Fixes: bb7fa09399b9 ("libbpf: Support symbol versioning for uprobe")
Reported-by: Liam Wisehart <liamwisehart@meta.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Manu Bretelle <chantr4@gmail.com>
Reviewed-by: Fangrui Song <maskray@google.com>
Acked-by: Hengqi Chen <hengqi.chen@gmail.com>
Link: https://lore.kernel.org/bpf/20231016182840.4033346-1-andrii@kernel.org

2023-10-17 11:43:20 +02:00

accounting

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arch

tools arch x86: Sync the msr-index.h copy with the kernel sources

2023-09-13 08:53:37 -03:00

bootconfig

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bpf

bpftool: Add support for cgroup unix socket address hooks

2023-10-11 17:27:55 -07:00

build