Messages in this thread Patch in this message | | | Date | Wed, 14 Feb 2018 10:14:17 +0300 | From | Dan Carpenter <> | Subject | [PATCH] x86/spectre: fix an error message |
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If i == ARRAY_SIZE(mitigation_options) then we accidentally print garbage from one space beyond the end of the mitigation_options[] array.
Fixes: 9005c6834c0f ("x86/spectre: Simplify spectre_v2 command line parsing") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index debcdda88560..acee4ebec04f 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -174,7 +174,7 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void) } if (i >= ARRAY_SIZE(mitigation_options)) { - pr_err("unknown option (%s). Switching to AUTO select\n", mitigation_options[i].option); + pr_err("unknown option (%s). Switching to AUTO select\n", arg); return SPECTRE_V2_CMD_AUTO; } }
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