linux-kernel - [PATCH 5.0 138/146] powerpc/pseries/mce: Fix misleading print for TLB mutlihit

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon,  1 Apr 2019 19:02:30 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
        Mahesh Salgaonkar <mahesh@...ux.vnet.ibm.com>,
        Michael Ellerman <mpe@...erman.id.au>
Subject: [PATCH 5.0 138/146] powerpc/pseries/mce: Fix misleading print for TLB mutlihit

5.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mahesh Salgaonkar <mahesh@...ux.vnet.ibm.com>

commit 6f845ebec2706841d15831fab3ffffcfd9e676fa upstream.

On pseries, TLB multihit are reported as D-Cache Multihit. This is because
the wrongly populated mc_err_types[] array. Per PAPR, TLB error type is 0x04
and mc_err_types[4] points to "D-Cache" instead of "TLB" string. Fixup the
mc_err_types[] array.

Machine check error type per PAPR:
  0x00 = Uncorrectable Memory Error (UE)
  0x01 = SLB error
  0x02 = ERAT Error
  0x04 = TLB error
  0x05 = D-Cache error
  0x07 = I-Cache error

Fixes: 8f0b80561f21 ("powerpc/pseries: Display machine check error details.")
Cc: stable@...r.kernel.org # v4.20+
Reported-by: Aneesh Kumar K.V <aneesh.kumar@...ux.ibm.com>
Signed-off-by: Mahesh Salgaonkar <mahesh@...ux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/powerpc/platforms/pseries/ras.c |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -550,6 +550,7 @@ static void pseries_print_mce_info(struc
 		"UE",
 		"SLB",
 		"ERAT",
+		"Unknown",
 		"TLB",
 		"D-Cache",
 		"Unknown",