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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 17:05:56 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 18:17:30 -0700 |
| commit | 506ada89629ec7059b96ecfb0dc7d33ece0103ca (patch) | |
| tree | 0b07297409b68d2333fb4f0eae7f3b072eb68d4c /drivers/misc/pvpanic/Kconfig | |
| download | linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.tar.gz linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.zip | |
bpf: mark a NULL kfunc argument precisegrafted
check_kfunc_arg() allows bpf_register_is_null() for nullable arguments
w/o marking the underlying scalar register precise. Hence a checkpoint
created on such a path would prune against arbitrary scalar value.
Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)")
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'drivers/misc/pvpanic/Kconfig')
| -rw-r--r-- | drivers/misc/pvpanic/Kconfig | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/misc/pvpanic/Kconfig b/drivers/misc/pvpanic/Kconfig new file mode 100644 index 000000000..12d40a21f --- /dev/null +++ b/drivers/misc/pvpanic/Kconfig @@ -0,0 +1,27 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Pvpanic Kconfig +# +# Copyright (C) 2021 Oracle. +# + +config PVPANIC + bool "pvpanic device support" + help + This option allows to select a specific pvpanic device driver. + pvpanic is a paravirtualized device provided by QEMU; it lets + a virtual machine (guest) communicate panic events to the host. + +config PVPANIC_MMIO + tristate "pvpanic MMIO device support" + depends on HAS_IOMEM && (ACPI || OF) && PVPANIC + help + This driver provides support for the MMIO pvpanic device. + +config PVPANIC_PCI + tristate "pvpanic PCI device support" + depends on PCI && PVPANIC + help + This driver provides support for the PCI pvpanic device. + pvpanic is a paravirtualized device provided by QEMU which + forwards the panic events from the guest to the host. |