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| author | Vegard Nossum <vegard.nossum@gmail.com> | 2008-07-25 10:45:34 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 19:53:27 +0200 |
| commit | 2fc9c4e18f94431e7eb77d97edb2a995b46fba55 (patch) | |
| tree | 4d5f003ab52c9e50774c856a5cc2e53699b0b21e /kernel/kallsyms.c | |
| parent | introduce HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig symbol (diff) | |
| download | linux-2fc9c4e18f94431e7eb77d97edb2a995b46fba55.tar.xz linux-2fc9c4e18f94431e7eb77d97edb2a995b46fba55.zip | |
kallsyms: fix potential overflow in binary search
This will probably never trigger... but it won't hurt to be careful.
http://googleresearch.blogspot.com/2006/06/extra-extra-read-all-about-it-nearly.html
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Joshua Bloch <jjb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | kernel/kallsyms.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c index 6fc0040f3e3a..38fc10ac7541 100644 --- a/kernel/kallsyms.c +++ b/kernel/kallsyms.c @@ -176,7 +176,7 @@ static unsigned long get_symbol_pos(unsigned long addr, high = kallsyms_num_syms; while (high - low > 1) { - mid = (low + high) / 2; + mid = low + (high - low) / 2; if (kallsyms_addresses[mid] <= addr) low = mid; else |