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* [Bug libc/31276] New: Wrong condition for heap allocation in qsort_r
@ 2024-01-22 19:54 xry111 at xry111 dot site
2024-01-23 13:21 ` [Bug libc/31276] " hjl.tools at gmail dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: xry111 at xry111 dot site @ 2024-01-22 19:54 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=31276
Bug ID: 31276
Summary: Wrong condition for heap allocation in qsort_r
Product: glibc
Version: 2.39
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: libc
Assignee: unassigned at sourceware dot org
Reporter: xry111 at xry111 dot site
CC: drepper.fsp at gmail dot com
Target Milestone: ---
/* Align to the maximum size used by the swap optimization. */
_Alignas (uint64_t) char tmp[QSORT_STACK_SIZE];
size_t total_size = total_elems * size;
char *buf;
if (size > INDIRECT_SORT_SIZE_THRES)
total_size = 2 * total_elems * sizeof (void *) + size;
if (total_size < sizeof buf)
buf = tmp;
else
{ /* allocate buf on heap ... */ }
Here "sizeof buf" is the size of a pointer, but (obviously?) we want
QSORT_STACK_SIZE here, i.e. "sizeof tmp".
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* [Bug libc/31276] Wrong condition for heap allocation in qsort_r
2024-01-22 19:54 [Bug libc/31276] New: Wrong condition for heap allocation in qsort_r xry111 at xry111 dot site
@ 2024-01-23 13:21 ` hjl.tools at gmail dot com
2024-01-26 19:30 ` gabravier at gmail dot com
2024-01-27 11:09 ` sam at gentoo dot org
2 siblings, 0 replies; 4+ messages in thread
From: hjl.tools at gmail dot com @ 2024-01-23 13:21 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=31276
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |2.39
Resolution|--- |FIXED
Status|UNCONFIRMED |RESOLVED
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
Fixed by
https://sourceware.org/git?p=glibc.git;a=commit;h=dfa3394a605c8f6f25e4f827789bc89eca1d206c
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* [Bug libc/31276] Wrong condition for heap allocation in qsort_r
2024-01-22 19:54 [Bug libc/31276] New: Wrong condition for heap allocation in qsort_r xry111 at xry111 dot site
2024-01-23 13:21 ` [Bug libc/31276] " hjl.tools at gmail dot com
@ 2024-01-26 19:30 ` gabravier at gmail dot com
2024-01-27 11:09 ` sam at gentoo dot org
2 siblings, 0 replies; 4+ messages in thread
From: gabravier at gmail dot com @ 2024-01-26 19:30 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=31276
Gabriel Ravier <gabravier at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |gabravier at gmail dot com
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* [Bug libc/31276] Wrong condition for heap allocation in qsort_r
2024-01-22 19:54 [Bug libc/31276] New: Wrong condition for heap allocation in qsort_r xry111 at xry111 dot site
2024-01-23 13:21 ` [Bug libc/31276] " hjl.tools at gmail dot com
2024-01-26 19:30 ` gabravier at gmail dot com
@ 2024-01-27 11:09 ` sam at gentoo dot org
2 siblings, 0 replies; 4+ messages in thread
From: sam at gentoo dot org @ 2024-01-27 11:09 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=31276
Sam James <sam at gentoo dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |sam at gentoo dot org
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end of thread, other threads:[~2024-01-27 11:09 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2024-01-22 19:54 [Bug libc/31276] New: Wrong condition for heap allocation in qsort_r xry111 at xry111 dot site
2024-01-23 13:21 ` [Bug libc/31276] " hjl.tools at gmail dot com
2024-01-26 19:30 ` gabravier at gmail dot com
2024-01-27 11:09 ` sam at gentoo dot org
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