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authorAlan Modra <amodra@gmail.com>2021-12-17 13:02:55 +1030
committerAlan Modra <amodra@gmail.com>2021-12-17 16:01:17 +1030
commitb39de8897a9a3de9a1146c020be29e0742dad747 (patch)
tree677a8a62f2e1e50429ab68115a2494a851052af3 /bfd
parent00d44f7f2f513c56a784a6d418833bb3da8a188f (diff)
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ubsan: bfd.c:2519:8: shift exponent 34 is too large
* bfd.c (bfd_update_compression_header): Avoid integer overflow.
Diffstat (limited to 'bfd')
-rw-r--r--bfd/bfd.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/bfd/bfd.c b/bfd/bfd.c
index 5c3797d..2eff815 100644
--- a/bfd/bfd.c
+++ b/bfd/bfd.c
@@ -2504,7 +2504,7 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents,
Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents;
bfd_put_32 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type);
bfd_put_32 (abfd, sec->size, &echdr->ch_size);
- bfd_put_32 (abfd, 1 << sec->alignment_power,
+ bfd_put_32 (abfd, 1u << sec->alignment_power,
&echdr->ch_addralign);
/* bfd_log2 (alignof (Elf32_Chdr)) */
bfd_set_section_alignment (sec, 2);
@@ -2516,7 +2516,7 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents,
bfd_put_32 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type);
bfd_put_32 (abfd, 0, &echdr->ch_reserved);
bfd_put_64 (abfd, sec->size, &echdr->ch_size);
- bfd_put_64 (abfd, 1 << sec->alignment_power,
+ bfd_put_64 (abfd, UINT64_C (1) << sec->alignment_power,
&echdr->ch_addralign);
/* bfd_log2 (alignof (Elf64_Chdr)) */
bfd_set_section_alignment (sec, 3);