Re: new snapshot available: coreutils-8.28.61-70c84

[Jim Meyering]

On Thu, Dec 21, 2017 at 7:54 AM, Pádraig Brady <address@hidden> wrote:
> Some initial test results. All tests pass on:
>
> x86_64   Fedora25 (+ASAN)
> ARMv7l   ArchLinux
> sparc    Solaris10
> aarch64  Centos7

On Fedora 27 x86_64, with gcc.git and UBSAN, I see many of these:

+ src/pr.c:2562:9: runtime error: pointer index expression with base
0x000002359840 overflowed to 0xffffffffd205680f9Pbj...
pr: test 9Pbj: stderr mismatch, comparing 9Pbj.1 (expected) and 9Pbj.E (actual)
*** 9Pbj.1      Thu Dec 21 11:26:25 2017
--- 9Pbj.E      Thu Dec 21 11:26:25 2017
***************
*** 0 ****
--- 1 ----

Perhaps not surprisingly, that diagnostic points to this
declaration/assignment of "last":

static bool
print_stored (COLUMN *p)
{
  COLUMN *q;

  int line = p->current_line++;
  char *first = &buff[line_vector[line]];
  /* FIXME
     UMR: Uninitialized memory read:
     * This is occurring while in:
     print_stored   [pr.c:2239]
     * Reading 4 bytes from 0x5148c in the heap.
     * Address 0x5148c is 4 bytes into a malloc'd block at 0x51488 of
676 bytes
     * This block was allocated from:
     malloc         [rtlib.o]
     xmalloc        [xmalloc.c:94]
     init_store_cols [pr.c:1648]
     */
  char *last = &buff[line_vector[line + 1]];