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* [glibc] Fix off-by-one OOB read in elf/tst-tls20
@ 2022-10-28 10:18 Szabolcs Nagy
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From: Szabolcs Nagy @ 2022-10-28 10:18 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=6a3794ea917558776ba1a66a925f2d5e1dbf0724
commit 6a3794ea917558776ba1a66a925f2d5e1dbf0724
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Tue Oct 11 13:07:59 2022 +0100
Fix off-by-one OOB read in elf/tst-tls20
The int mods[nmods] array on the stack was overread by one.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
Diff:
---
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);
}
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2022-10-28 10:18 [glibc] Fix off-by-one OOB read in elf/tst-tls20 Szabolcs Nagy
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