Description
In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed When accidentally setting “kvm-arm.vgic_v4_enable=1” on a system that has no MSI controller device tree node and GICv4, it results a panic as “gic_domain” is NULL and the kernel attempts to access it. Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028 Mem abort info: ESR = 0x0000000096000006 CPU: 1 UID: 0 PID: 295 Comm: lkvm-static Not tainted 7.1.0-rc4-ge3f15ad3970e #5 PREEMPT Hardware name: linux,dummy-virt (DT) pstate: 81402005 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : __irq_domain_instantiate+0x1d4/0x578 lr : __irq_domain_instantiate+0x1cc/0x578 Set vLPI support to false at init time if the host has no ITS, so it propagates properly to kvm_vgic_global_state.has_gicv4.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
a75460547e13c99762c2f9dbfcdd13ad416f91c5 to < 3e4cae9f1472ba3c9fe87edee24074618b51f537affecteda75460547e13c99762c2f9dbfcdd13ad416f91c5 to < a2508b8855acc96abe69be73b41b672f1ef12516affecteda75460547e13c99762c2f9dbfcdd13ad416f91c5 to < e79934064be85fc9a3a6434da857307d8b78e33daffecteda75460547e13c99762c2f9dbfcdd13ad416f91c5 to < 4761493dd663443f7353c184e6fa16e1cb3ac5a1affecteda75460547e13c99762c2f9dbfcdd13ad416f91c5 to < ab233119a19716b8f33e73ea7e092e0eb353cfbfaffecteda75460547e13c99762c2f9dbfcdd13ad416f91c5 to < c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40affecteda75460547e13c99762c2f9dbfcdd13ad416f91c5 to < e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5affected
Linux Linux
Default version status: affected
4.15affected0 to < 4.15unaffected5.10.271 to ≤ 5.10.*unaffected5.15.222 to ≤ 5.15.*unaffected6.1.189 to ≤ 6.1.*unaffected6.6.158 to ≤ 6.6.*unaffected6.12.111 to ≤ 6.12.*unaffected6.18.53 to ≤ 6.18.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/3e4cae9f1472ba3c9fe87edee24074618b51f537 ↗
- https://git.kernel.org/stable/c/a2508b8855acc96abe69be73b41b672f1ef12516 ↗
- https://git.kernel.org/stable/c/e79934064be85fc9a3a6434da857307d8b78e33d ↗
- https://git.kernel.org/stable/c/4761493dd663443f7353c184e6fa16e1cb3ac5a1 ↗
- https://git.kernel.org/stable/c/ab233119a19716b8f33e73ea7e092e0eb353cfbf ↗
- https://git.kernel.org/stable/c/c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40 ↗
- https://git.kernel.org/stable/c/e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5 ↗