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* [Bug dynamic-link/27606] New: Memory leak in elf/cache.c (write_extensions)
@ 2021-03-18 18:08 carlos at redhat dot com
2024-07-08 12:40 ` [Bug dynamic-link/27606] " carlos at redhat dot com
0 siblings, 1 reply; 2+ messages in thread
From: carlos at redhat dot com @ 2021-03-18 18:08 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=27606
Bug ID: 27606
Summary: Memory leak in elf/cache.c (write_extensions)
Product: glibc
Version: 2.33
Status: NEW
Severity: normal
Priority: P2
Component: dynamic-link
Assignee: unassigned at sourceware dot org
Reporter: carlos at redhat dot com
Target Milestone: ---
492 static void
493 write_extensions (int fd, uint32_t str_offset,
494 uint32_t cache_extension_offset)
495 {
496 assert ((cache_extension_offset % 4) == 0);
497
498 /* The length and contents of the glibc-hwcaps section. */
499 uint32_t hwcaps_count = glibc_hwcaps_count ();
500 uint32_t hwcaps_offset = cache_extension_offset + cache_extension_size;
501 uint32_t hwcaps_size = hwcaps_count * sizeof (uint32_t);
502 uint32_t *hwcaps_array = xmalloc (hwcaps_size);
We allocate hwcaps_array.
545 if (write (fd, ext, ext_size) != ext_size
546 || write (fd, hwcaps_array, hwcaps_size) != hwcaps_size
547 || write (fd, generator, strlen (generator)) != strlen (generator))
548 error (EXIT_FAILURE, errno, _("Writing of cache extension data
failed"));
549
550 free (ext);
551 }
552
Then we go out of scope without freeing hwcaps_array.
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* [Bug dynamic-link/27606] Memory leak in elf/cache.c (write_extensions)
2021-03-18 18:08 [Bug dynamic-link/27606] New: Memory leak in elf/cache.c (write_extensions) carlos at redhat dot com
@ 2024-07-08 12:40 ` carlos at redhat dot com
0 siblings, 0 replies; 2+ messages in thread
From: carlos at redhat dot com @ 2024-07-08 12:40 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=27606
Carlos O'Donell <carlos at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |SAST
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2021-03-18 18:08 [Bug dynamic-link/27606] New: Memory leak in elf/cache.c (write_extensions) carlos at redhat dot com
2024-07-08 12:40 ` [Bug dynamic-link/27606] " carlos at redhat dot com
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