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ubsan: bfd.c:2519:8: shift exponent 34 is too large

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* bfd.c (bfd_update_compression_header): Avoid integer overflow.
This commit is contained in:
Alan Modra
2021-12-17 13:02:55 +10:30
parent 00d44f7f2f
commit b39de8897a
1 changed files with 2 additions and 2 deletions
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4
bfd/bfd.c
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@ -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);