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Commit b12eab1a796a306caef7046b21a76efa35f5f489

Authored by Denis Kirjanov
Committed by Robert Richter
1 parent d8a382d266
Exists in master and in 7 other branches imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-l5.0.0_1.0.0-ga

powerpc/oprofile: fix potential buffer overrun in op_model_cell.c 

Fix potential initial_lfsr buffer overrun.
Writing past the end of the buffer could happen when index == ENTRIES

Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Robert Richter <robert.richter@amd.com>

Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff

arch/powerpc/oprofile/op_model_cell.c
Diff comments   View file @ b12eab1
... ... @@ -1077,7 +1077,7 @@
1077 1077 index = ENTRIES-1;
1078 1078  
1079 1079 /* make sure index is valid */
1080   - if ((index > ENTRIES) || (index < 0))
  1080 + if ((index >= ENTRIES) || (index < 0))
1081 1081 index = ENTRIES-1;
1082 1082  
1083 1083 return initial_lfsr[index];