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| From: | amodra at gmail dot com |
| Subject: | [Bug binutils/27289] Undefined negation/ Negation Overflow in _bfd_doprnt_scan() potentially crashing on some systems |
| Date: | Wed, 10 Feb 2021 23:43:14 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=27289
Alan Modra <amodra at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |NOTABUG
Status|UNCONFIRMED |RESOLVED
Assignee|unassigned at sourceware dot org |amodra at gmail dot com
--- Comment #1 from Alan Modra <amodra at gmail dot com> ---
-1u is parsed as -(1u). This is *not* negation of 1 as claimed by the usban
error but negation of an unsigned int. Negation of an unsigned int is
perfectly well defined. Looks like a bug in ubsan to me.
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