Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 3e4cae9f1472ba3c9fe87edee24074618b51f537; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before a2508b8855acc96abe69be73b41b672f1ef12516; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e79934064be85fc9a3a6434da857307d8b78e33d; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 4761493dd663443f7353c184e6fa16e1cb3ac5a1; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before ab233119a19716b8f33e73ea7e092e0eb353cfbf; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5; affected 0 before 5.10.271; affected 0 before 5.15.222; affected 0 before 6.1.189; affected 0 before 6.6.158; affected 0 before 6.12.111; affected 0 before 6.18.53 |
| Linux / Linux | unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.111 through 6.12.*; unaffected 6.18.53 through 6.18.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
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