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| author |   Mario Limonciello <mario.limonciello@amd.com> | 2022-05-09 09:17:16 -0500 |
|---|---|---|
| committer |   Jassi Brar <jaswinder.singh@linaro.org> | 2022-05-21 11:41:30 -0500 |
| commit | 369e4ef87a8f5da7c348ec2c61ec5cd726e8337a (patch) | |
| tree | f4341a6bae07dd43d05753c22867d3dacc84fdf8 /drivers/mailbox/pcc.c | |
| parent | dt-bindings: mailbox: remove the IPCC "wakeup" IRQ (diff) | |
| download | linux-dev-369e4ef87a8f5da7c348ec2c61ec5cd726e8337a.tar.xz linux-dev-369e4ef87a8f5da7c348ec2c61ec5cd726e8337a.zip | |
mailbox: pcc: Fix an invalid-load caught by the address sanitizer
`pcc_mailbox_probe` doesn't initialize all memory that has been allocated
before the first time that one of it's members `txdone_irq` may be
accessed.
This leads to a an invalid load any time that this member is accessed:
[ 2.429769] UBSAN: invalid-load in drivers/mailbox/pcc.c:684:22
[ 2.430324] UBSAN: invalid-load in drivers/mailbox/mailbox.c:486:12
[ 4.276782] UBSAN: invalid-load in drivers/acpi/cppc_acpi.c:314:45
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215587
Fixes: ce028702ddbc ("mailbox: pcc: Move bulk of PCCT parsing into pcc_mbox_probe")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Diffstat (limited to 'drivers/mailbox/pcc.c')
| -rw-r--r-- | drivers/mailbox/pcc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c index ed18936b8ce6..ebfa33a40fce 100644 --- a/drivers/mailbox/pcc.c +++ b/drivers/mailbox/pcc.c @@ -654,7 +654,7 @@ static int pcc_mbox_probe(struct platform_device *pdev) goto err; } - pcc_mbox_ctrl = devm_kmalloc(dev, sizeof(*pcc_mbox_ctrl), GFP_KERNEL); + pcc_mbox_ctrl = devm_kzalloc(dev, sizeof(*pcc_mbox_ctrl), GFP_KERNEL); if (!pcc_mbox_ctrl) { rc = -ENOMEM; goto err; |