{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-54007", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-54007", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-12-24T10:55:41.281Z", "updatedAt": "2026-05-11T19:53:29.294Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "vmci_host: fix a race condition in vmci_host_poll() causing GPF", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nvmci_host: fix a race condition in vmci_host_poll() causing GPF\n\nDuring fuzzing, a general protection fault is observed in\nvmci_host_poll().\n\ngeneral protection fault, probably for non-canonical address 0xdffffc0000000019: 0000 [#1] PREEMPT SMP KASAN\nKASAN: null-ptr-deref in range [0x00000000000000c8-0x00000000000000cf]\nRIP: 0010:__lock_acquire+0xf3/0x5e00 kernel/locking/lockdep.c:4926\n<- omitting registers ->\nCall Trace:\n \n lock_acquire+0x1a4/0x4a0 kernel/locking/lockdep.c:5672\n __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]\n _raw_spin_lock_irqsave+0xb3/0x100 kernel/locking/spinlock.c:162\n add_wait_queue+0x3d/0x260 kernel/sched/wait.c:22\n poll_wait include/linux/poll.h:49 [inline]\n vmci_host_poll+0xf8/0x2b0 drivers/misc/vmw_vmci/vmci_host.c:174\n vfs_poll include/linux/poll.h:88 [inline]\n do_pollfd fs/select.c:873 [inline]\n do_poll fs/select.c:921 [inline]\n do_sys_poll+0xc7c/0x1aa0 fs/select.c:1015\n __do_sys_ppoll fs/select.c:1121 [inline]\n __se_sys_ppoll+0x2cc/0x330 fs/select.c:1101\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x4e/0xa0 arch/x86/entry/common.c:82\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nExample thread interleaving that causes the general protection fault\nis as follows:\n\nCPU1 (vmci_host_poll) CPU2 (vmci_host_do_init_context)\n----- -----\n// Read uninitialized context\ncontext = vmci_host_dev->context;\n // Initialize context\n vmci_host_dev->context = vmci_ctx_create();\n vmci_host_dev->ct_type = VMCIOBJ_CONTEXT;\n\nif (vmci_host_dev->ct_type == VMCIOBJ_CONTEXT) {\n // Dereferencing the wrong pointer\n poll_wait(..., &context->host_context);\n}\n\nIn this scenario, vmci_host_poll() reads vmci_host_dev->context first,\nand then reads vmci_host_dev->ct_type to check that\nvmci_host_dev->context is initialized. However, since these two reads\nare not atomically executed, there is a chance of a race condition as\ndescribed above.\n\nTo fix this race condition, read vmci_host_dev->context after checking\nthe value of vmci_host_dev->ct_type so that vmci_host_poll() always\nreads an initialized context.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "8bf503991f87e32ea42a7bd69b79ba084fddc5d7", "status": "affected", "versionType": "git", "lessThan": "2053e93ac15519ed1f1fe6eba79a33a4963be4a3" }, { "version": "8bf503991f87e32ea42a7bd69b79ba084fddc5d7", "status": "affected", "versionType": "git", "lessThan": "ca0f4ad2b7a36c799213ef0a213eb977a51e03dc" }, { "version": "8bf503991f87e32ea42a7bd69b79ba084fddc5d7", "status": "affected", "versionType": "git", "lessThan": "85b4aa4eb2e3a0da111fd0a1cdbf00f986ac6b6b" }, { "version": "8bf503991f87e32ea42a7bd69b79ba084fddc5d7", "status": "affected", "versionType": "git", "lessThan": "770d30b1355c6c8879973dd054fca9168def182c" }, { "version": "8bf503991f87e32ea42a7bd69b79ba084fddc5d7", "status": "affected", "versionType": "git", "lessThan": "d22b2a35729cb1de311cb650cd67518a24e13fc9" }, { "version": "8bf503991f87e32ea42a7bd69b79ba084fddc5d7", "status": "affected", "versionType": "git", "lessThan": "67e35824f861a05b44b19d38e16a83f653bd9d92" }, { "version": "8bf503991f87e32ea42a7bd69b79ba084fddc5d7", "status": "affected", "versionType": "git", "lessThan": "ab64bd32b9fac27ff4737d63711b9db5e5462448" }, { "version": "8bf503991f87e32ea42a7bd69b79ba084fddc5d7", "status": "affected", "versionType": "git", "lessThan": "ae13381da5ff0e8e084c0323c3cc0a945e43e9c7" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "3.9", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "3.9" }, { "version": "4.19.283", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.243", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.180", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.111", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.28", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2.15", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.2.*" }, { "version": "6.3.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.3.*" }, { "version": "6.4", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }