{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53319", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-16T16:08:59.563Z", "datePublished": "2025-09-16T16:11:55.490Z", "dateUpdated": "2026-05-11T19:42:38.960Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:42:38.960Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Handle kvm_arm_init failure correctly in finalize_pkvm\n\nCurrently there is no synchronisation between finalize_pkvm() and\nkvm_arm_init() initcalls. The finalize_pkvm() proceeds happily even if\nkvm_arm_init() fails resulting in the following warning on all the CPUs\nand eventually a HYP panic:\n\n | kvm [1]: IPA Size Limit: 48 bits\n | kvm [1]: Failed to init hyp memory protection\n | kvm [1]: error initializing Hyp mode: -22\n |\n | \n |\n | WARNING: CPU: 0 PID: 0 at arch/arm64/kvm/pkvm.c:226 _kvm_host_prot_finalize+0x30/0x50\n | Modules linked in:\n | CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.4.0 #237\n | Hardware name: FVP Base RevC (DT)\n | pstate: 634020c5 (nZCv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\n | pc : _kvm_host_prot_finalize+0x30/0x50\n | lr : __flush_smp_call_function_queue+0xd8/0x230\n |\n | Call trace:\n | _kvm_host_prot_finalize+0x3c/0x50\n | on_each_cpu_cond_mask+0x3c/0x6c\n | pkvm_drop_host_privileges+0x4c/0x78\n | finalize_pkvm+0x3c/0x5c\n | do_one_initcall+0xcc/0x240\n | do_initcall_level+0x8c/0xac\n | do_initcalls+0x54/0x94\n | do_basic_setup+0x1c/0x28\n | kernel_init_freeable+0x100/0x16c\n | kernel_init+0x20/0x1a0\n | ret_from_fork+0x10/0x20\n | Failed to finalize Hyp protection: -22\n | dtb=fvp-base-revc.dtb\n | kvm [95]: nVHE hyp BUG at: arch/arm64/kvm/hyp/nvhe/mem_protect.c:540!\n | kvm [95]: nVHE call trace:\n | kvm [95]: [] __kvm_nvhe_hyp_panic+0xac/0xf8\n | kvm [95]: [] __kvm_nvhe_handle_host_mem_abort+0x1a0/0x2ac\n | kvm [95]: [] __kvm_nvhe_handle_trap+0x4c/0x160\n | kvm [95]: [] __kvm_nvhe___skip_pauth_save+0x4/0x4\n | kvm [95]: ---[ end nVHE call trace ]---\n | kvm [95]: Hyp Offset: 0xfffe8db00ffa0000\n | Kernel panic - not syncing: HYP panic:\n | PS:a34023c9 PC:0000f250710b973c ESR:00000000f2000800\n | FAR:ffff000800cb00d0 HPFAR:000000000880cb00 PAR:0000000000000000\n | VCPU:0000000000000000\n | CPU: 3 PID: 95 Comm: kworker/u16:2 Tainted: G W 6.4.0 #237\n | Hardware name: FVP Base RevC (DT)\n | Workqueue: rpciod rpc_async_schedule\n | Call trace:\n | dump_backtrace+0xec/0x108\n | show_stack+0x18/0x2c\n | dump_stack_lvl+0x50/0x68\n | dump_stack+0x18/0x24\n | panic+0x138/0x33c\n | nvhe_hyp_panic_handler+0x100/0x184\n | new_slab+0x23c/0x54c\n | ___slab_alloc+0x3e4/0x770\n | kmem_cache_alloc_node+0x1f0/0x278\n | __alloc_skb+0xdc/0x294\n | tcp_stream_alloc_skb+0x2c/0xf0\n | tcp_sendmsg_locked+0x3d0/0xda4\n | tcp_sendmsg+0x38/0x5c\n | inet_sendmsg+0x44/0x60\n | sock_sendmsg+0x1c/0x34\n | xprt_sock_sendmsg+0xdc/0x274\n | xs_tcp_send_request+0x1ac/0x28c\n | xprt_transmit+0xcc/0x300\n | call_transmit+0x78/0x90\n | __rpc_execute+0x114/0x3d8\n | rpc_async_schedule+0x28/0x48\n | process_one_work+0x1d8/0x314\n | worker_thread+0x248/0x474\n | kthread+0xfc/0x184\n | ret_from_fork+0x10/0x20\n | SMP: stopping secondary CPUs\n | Kernel Offset: 0x57c5cb460000 from 0xffff800080000000\n | PHYS_OFFSET: 0x80000000\n | CPU features: 0x00000000,1035b7a3,ccfe773f\n | Memory Limit: none\n | ---[ end Kernel panic - not syncing: HYP panic:\n | PS:a34023c9 PC:0000f250710b973c ESR:00000000f2000800\n | FAR:ffff000800cb00d0 HPFAR:000000000880cb00 PAR:0000000000000000\n | VCPU:0000000000000000 ]---\n\nFix it by checking for the successfull initialisation of kvm_arm_init()\nin finalize_pkvm() before proceeding any futher." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "arch/arm64/include/asm/virt.h", "arch/arm64/kvm/arm.c", "arch/arm64/kvm/pkvm.c" ], "versions": [ { "version": "87727ba2bb05cc3cb4233231faa7ab4c7eeb6c73", "lessThan": "91450dec0445f4d12f960ba68d8d05c3cb2ab5b8", "status": "affected", "versionType": "git" }, { "version": "87727ba2bb05cc3cb4233231faa7ab4c7eeb6c73", "lessThan": "fa729bc7c9c8c17a2481358c841ef8ca920485d3", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "arch/arm64/include/asm/virt.h", "arch/arm64/kvm/arm.c", "arch/arm64/kvm/pkvm.c" ], "versions": [ { "version": "6.4", "status": "affected" }, { "version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver" }, { "version": "6.4.8", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.5", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.4.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.5" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/91450dec0445f4d12f960ba68d8d05c3cb2ab5b8" }, { "url": "https://git.kernel.org/stable/c/fa729bc7c9c8c17a2481358c841ef8ca920485d3" } ], "title": "KVM: arm64: Handle kvm_arm_init failure correctly in finalize_pkvm", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2023-53319", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2026-01-14T18:26:55.555978Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "description": "CWE-noinfo Not enough information" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T18:32:58.244Z" } } ] } }