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| author |   Jan H. Schönherr <jschoenh@amazon.de> | 2019-12-10 01:07:30 +0100 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2019-12-17 09:39:53 +0100 |
| commit | a3a57ddad061acc90bef39635caf2b2330ce8f21 (patch) | |
| tree | 7f649e31398ef13060829531a27e706aa8f1fb0b /arch | |
| parent | x86/MCE/AMD: Allow Reserved types to be overwritten in smca_banks[] (diff) | |
| download | linux-dev-a3a57ddad061acc90bef39635caf2b2330ce8f21.tar.xz linux-dev-a3a57ddad061acc90bef39635caf2b2330ce8f21.zip | |
x86/mce: Fix possibly incorrect severity calculation on AMD
The function mce_severity_amd_smca() requires m->bank to be initialized
for correct operation. Fix the one case, where mce_severity() is called
without doing so.
Fixes: 6bda529ec42e ("x86/mce: Grade uncorrected errors for SMCA-enabled systems")
Fixes: d28af26faa0b ("x86/MCE: Initialize mce.bank in the case of a fatal error in mce_no_way_out()")
Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: <stable@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Cc: Yazen Ghannam <Yazen.Ghannam@amd.com>
Link: https://lkml.kernel.org/r/20191210000733.17979-4-jschoenh@amazon.de
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/cpu/mce/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c index 5f42f25bac8f..2e2a421c8528 100644 --- a/arch/x86/kernel/cpu/mce/core.c +++ b/arch/x86/kernel/cpu/mce/core.c @@ -819,8 +819,8 @@ static int mce_no_way_out(struct mce *m, char **msg, unsigned long *validp, if (quirk_no_way_out) quirk_no_way_out(i, m, regs); + m->bank = i; if (mce_severity(m, mca_cfg.tolerant, &tmp, true) >= MCE_PANIC_SEVERITY) { - m->bank = i; mce_read_aux(m, i); *msg = tmp; return 1; |