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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/virt/acrn/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/virt/acrn/Kconfig')
| -rw-r--r-- | drivers/virt/acrn/Kconfig | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/virt/acrn/Kconfig b/drivers/virt/acrn/Kconfig new file mode 100644 index 000000000..3e1a61c9d --- /dev/null +++ b/drivers/virt/acrn/Kconfig @@ -0,0 +1,15 @@ +# SPDX-License-Identifier: GPL-2.0 +config ACRN_HSM + tristate "ACRN Hypervisor Service Module" + depends on ACRN_GUEST + select EVENTFD + help + ACRN Hypervisor Service Module (HSM) is a kernel module which + communicates with ACRN userspace through ioctls and talks to + the ACRN Hypervisor through hypercalls. HSM will only run in + a privileged management VM, called Service VM, to manage User + VMs and do I/O emulation. Not required for simply running + under ACRN as a User VM. + + To compile as a module, choose M, the module will be called + acrn. If unsure, say N. |