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PR32858 ld segfault on fuzzed object We missed one place where it is necessary to check for empty groups. PR32829, SEGV on objdump function debug_type_samep u.kenum is always non-NULL, see debug_make_enum_type. Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=patch;h=d1458933830456e54223d9fc61f0d9b3a19256f5] && [https://sourceware.org/git/?p=binutils-gdb.git;a=patch;h=6c3458a8b7ee7d39f070c7b2350851cb2110c65a] (From OE-Core rev: 7eb29f802b272dec19c5bfdce93155d99bac918d) Signed-off-by: Deepesh Varatharajan <Deepesh.Varatharajan@windriver.com> Signed-off-by: Steve Sakoman <steve@sakoman.com>
26 lines
813 B
Diff
26 lines
813 B
Diff
From: Alan Modra <amodra@gmail.com>
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Date: Thu, 10 Apr 2025 19:41:49 +0930
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Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=patch;h=d1458933830456e54223d9fc61f0d9b3a19256f5]
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CVE: CVE-2025-5244
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PR32858 ld segfault on fuzzed object
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We missed one place where it is necessary to check for empty groups.
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Signed-off-by: Deepesh Varatharajan <Deepesh.Varatharajan@windriver.com>
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diff --git a/bfd/elflink.c b/bfd/elflink.c
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index a76e8e38da7..549b7b7dd92 100644
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--- a/bfd/elflink.c
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+++ b/bfd/elflink.c
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@@ -14408,7 +14408,8 @@ elf_gc_sweep (bfd *abfd, struct bfd_link_info *info)
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if (o->flags & SEC_GROUP)
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{
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asection *first = elf_next_in_group (o);
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- o->gc_mark = first->gc_mark;
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+ if (first != NULL)
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+ o->gc_mark = first->gc_mark;
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}
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if (o->gc_mark)
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