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From: Szabolcs Nagy <szabolcs.nagy@arm.com>
To: <libc-alpha@sourceware.org>
Subject: [PATCH 15/20] Fix off-by-one OOB read in elf/tst-tls20
Date: Thu, 27 Oct 2022 16:33:30 +0100	[thread overview]
Message-ID: <728d38c0fe230ac671bd6c2589a11e56f0324644.1666877952.git.szabolcs.nagy@arm.com> (raw)
In-Reply-To: <cover.1666877952.git.szabolcs.nagy@arm.com>

The int mods[nmods] array on the stack was overread by one.
---
 elf/tst-tls20.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/elf/tst-tls20.c b/elf/tst-tls20.c
index ce4635eeb1..9cebe22a40 100644
--- a/elf/tst-tls20.c
+++ b/elf/tst-tls20.c
@@ -264,7 +264,7 @@ do_test_dependency (void)
 	  xdlclose (moddep);
 	}
 
-      for (int n = 1; n <= nmods; n++)
+      for (int n = 1; n < nmods; n++)
 	if (mods[n] != 0)
 	  unload_mod (n);
     }
@@ -342,7 +342,7 @@ do_test_invalid_dependency (bool bind_now)
 	    xdlclose (moddep);
 	}
 
-      for (int n = 1; n <= nmods; n++)
+      for (int n = 1; n < nmods; n++)
 	if (mods[n] != 0)
 	  unload_mod (n);
     }
-- 
2.25.1


  parent reply	other threads:[~2022-10-27 15:33 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-27 15:32 [PATCH 00/20] patches from the morello port Szabolcs Nagy
2022-10-27 15:32 ` [PATCH 01/20] Fix OOB read in stdlib thousand grouping parsing [BZ #29727] Szabolcs Nagy
2022-10-27 15:38   ` Andreas Schwab
2022-10-27 15:32 ` [PATCH 02/20] scripts: Use bool in tunables initializer Szabolcs Nagy
2022-10-27 16:29   ` Florian Weimer
2022-10-27 15:32 ` [PATCH 03/20] aarch64: Don't build wordcopy Szabolcs Nagy
2022-10-27 16:59   ` Adhemerval Zanella Netto
2022-10-27 15:32 ` [PATCH 04/20] aarch64: Fix the extension header write in getcontext and swapcontext Szabolcs Nagy
2022-10-28 14:03   ` Adhemerval Zanella Netto
2022-10-27 15:32 ` [PATCH 05/20] Fix invalid pointer dereference in wcscpy_chk Szabolcs Nagy
2022-10-28  5:34   ` Florian Weimer
2022-10-27 15:32 ` [PATCH 06/20] Fix invalid pointer dereference in wcpcpy_chk Szabolcs Nagy
2022-10-28  5:45   ` Florian Weimer
2022-10-27 15:32 ` [PATCH 07/20] Use uintptr_t in fts for pointer alignment Szabolcs Nagy
2022-10-31 16:08   ` Adhemerval Zanella Netto
2022-10-27 15:32 ` [PATCH 08/20] malloc: Use uintptr_t " Szabolcs Nagy
2022-10-31 16:09   ` Adhemerval Zanella Netto
2022-10-27 15:32 ` [PATCH 09/20] malloc: Use uintptr_t in alloc_buffer Szabolcs Nagy
2022-10-27 16:15   ` Florian Weimer
2022-10-27 15:33 ` [PATCH 10/20] malloc: Fix alignment logic in obstack Szabolcs Nagy
2022-10-31 16:14   ` Adhemerval Zanella Netto
2022-11-01  9:43     ` Szabolcs Nagy
2022-11-01 13:07       ` Adhemerval Zanella Netto
2022-10-27 15:33 ` [PATCH 11/20] elf: Fix alloca size in _dl_debug_vdprintf Szabolcs Nagy
2022-10-28  5:31   ` Florian Weimer
2022-10-28 13:56   ` Adhemerval Zanella Netto
2022-10-28 14:43     ` Szabolcs Nagy
2022-10-28 14:48       ` Adhemerval Zanella Netto
2022-10-27 15:33 ` [PATCH 12/20] Fix the symbolic link of multilib dirs Szabolcs Nagy
2022-10-27 15:33 ` [PATCH 13/20] Use uintptr_t in string/tester for pointer alignment Szabolcs Nagy
2022-10-28 14:11   ` Adhemerval Zanella Netto
2022-10-27 15:33 ` [PATCH 14/20] Fix off-by-one OOB write in iconv/tst-iconv-mt Szabolcs Nagy
2022-10-28  5:39   ` Florian Weimer
2022-10-27 15:33 ` Szabolcs Nagy [this message]
2022-10-28  5:36   ` [PATCH 15/20] Fix off-by-one OOB read in elf/tst-tls20 Florian Weimer
2022-10-27 15:33 ` [PATCH 16/20] Fix malloc/tst-scratch_buffer OOB access Szabolcs Nagy
2022-10-28  5:41   ` Florian Weimer
2022-10-28 11:24     ` Szabolcs Nagy
2022-10-28 11:30       ` Florian Weimer
2022-10-28 12:23         ` Szabolcs Nagy
2022-10-28 12:27           ` Florian Weimer
2022-10-27 15:33 ` [PATCH 17/20] Fix missing NUL terminator in stdio-common/scanf13 test Szabolcs Nagy
2022-10-28  5:44   ` Florian Weimer
2022-10-27 15:33 ` [PATCH 18/20] Fix elf/tst-dlmopen-twice to support enough link namespaces Szabolcs Nagy
2022-10-27 16:24   ` Florian Weimer
2022-10-27 16:45     ` Szabolcs Nagy
2022-10-27 16:51       ` Florian Weimer
2022-10-27 16:47     ` Adhemerval Zanella Netto
2022-10-27 15:33 ` [PATCH 19/20] Fix resource/bug-ulimit1 test Szabolcs Nagy
2022-10-27 16:48   ` Adhemerval Zanella Netto
2022-10-27 15:34 ` [PATCH 20/20] Fix stdlib/test-dlclose-exit-race to not hang Szabolcs Nagy
2022-10-27 16:22   ` Florian Weimer

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