CVE-2026-98877: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: a75460547e13c99762c2f9dbfcdd13ad416f91c5 преди 3e4cae9f1472ba3c9fe87edee24074618b51f537; a75460547e13c99762c2f9dbfcdd13ad416f91c5 преди a2508b8855acc96abe69be73b41b672f1ef12516; a75460547e13c99762c2f9dbfcdd13ad416f91c5 преди e79934064be85fc9a3a6434da857307d8b78e33d; a75460547e13c99762c2f9dbfcdd13ad416f91c5 преди 4761493dd663443f7353c184e6fa16e1cb3ac5a1; a75460547e13c99762c2f9dbfcdd13ad416f91c5 преди ab233119a19716b8f33e73ea7e092e0eb353cfbf; a75460547e13c99762c2f9dbfcdd13ad416f91c5 преди c8a911b3b07baa0aeb3dbc4e16a4670bd21bed40; a75460547e13c99762c2f9dbfcdd13ad416f91c5 преди e61654fbc3bc5d07ec9fafe29f33e19b2b5d0fd5
• Linux Linux: 4.15; преди 4.15; 5.10.271 до 5.10.*; 5.15.222 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98877
• https://nvd.nist.gov/vuln/detail/CVE-2026-98877
• 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