CVE-2023-54007
Estado: AplazadaSin puntuar—
In the Linux kernel, the following vulnerability has been resolved:
vmci_host: fix a race condition in vmci_host_poll() causing GPF
During fuzzing, a general protection fault is observed in vmci_host_poll().
Example thread interleaving that causes the general protection fault is as follows:
In this scenario, vmci_host_poll() reads vmci_host_dev->context first, and then reads vmci_host_dev->ct_type to check that vmci_host_dev->context is initialized. However, since these two reads are not atomically executed, there is a chance of a race condition as described above.
To fix this race condition, read vmci_host_dev->context after checking the value of vmci_host_dev->ct_type so that vmci_host_poll() always reads an initialized context.
Detalles técnicos trazas, registros y código del informe original
general protection fault, probably for non-canonical address 0xdffffc0000000019: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000000c8-0x00000000000000cf]
RIP: 0010:__lock_acquire+0xf3/0x5e00 kernel/locking/lockdep.c:4926
<- omitting registers ->
Call Trace:
<TASK>
lock_acquire+0x1a4/0x4a0 kernel/locking/lockdep.c:5672
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xb3/0x100 kernel/locking/spinlock.c:162
add_wait_queue+0x3d/0x260 kernel/sched/wait.c:22
poll_wait include/linux/poll.h:49 [inline]
vmci_host_poll+0xf8/0x2b0 drivers/misc/vmw_vmci/vmci_host.c:174
vfs_poll include/linux/poll.h:88 [inline]
do_pollfd fs/select.c:873 [inline]
do_poll fs/select.c:921 [inline]
do_sys_poll+0xc7c/0x1aa0 fs/select.c:1015
__do_sys_ppoll fs/select.c:1121 [inline]
__se_sys_ppoll+0x2cc/0x330 fs/select.c:1101
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4e/0xa0 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x46/0xb0
CPU1 (vmci_host_poll) CPU2 (vmci_host_do_init_context)
----- -----
// Read uninitialized context
context = vmci_host_dev->context;
// Initialize context
vmci_host_dev->context = vmci_ctx_create();
vmci_host_dev->ct_type = VMCIOBJ_CONTEXT;
if (vmci_host_dev->ct_type == VMCIOBJ_CONTEXT) {
// Dereferencing the wrong pointer
poll_wait(..., &context->host_context);
}CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.22%
- Percentil entre todas las CVEs puntuadas: 11
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
- https://git.kernel.org/stable/c/2053e93ac15519ed1f1fe6eba79a33a4963be4a3
- https://git.kernel.org/stable/c/67e35824f861a05b44b19d38e16a83f653bd9d92
- https://git.kernel.org/stable/c/770d30b1355c6c8879973dd054fca9168def182c
- https://git.kernel.org/stable/c/85b4aa4eb2e3a0da111fd0a1cdbf00f986ac6b6b
- https://git.kernel.org/stable/c/ab64bd32b9fac27ff4737d63711b9db5e5462448
- https://git.kernel.org/stable/c/ae13381da5ff0e8e084c0323c3cc0a945e43e9c7
- https://git.kernel.org/stable/c/ca0f4ad2b7a36c799213ef0a213eb977a51e03dc
- https://git.kernel.org/stable/c/d22b2a35729cb1de311cb650cd67518a24e13fc9
JSON original (NVD)
Mostrar
{
"id": "CVE-2023-54007",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"vendor": "Linux",
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{
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],
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{
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"vendor": "Linux",
"product": "Linux",
"versions": [
{
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"version": "3.9"
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{
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"version": "0",
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},
{
"status": "unaffected",
"version": "4.19.283",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.243",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.180",
"versionType": "semver",
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},
{
"status": "unaffected",
"version": "5.15.111",
"versionType": "semver",
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{
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"versionType": "semver",
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{
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{
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"lessThanOrEqual": "*"
}
],
"programFiles": [
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],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-12-24T11:15:53.633",
"references": [
{
"url": "https://git.kernel.org/stable/c/2053e93ac15519ed1f1fe6eba79a33a4963be4a3",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
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},
{
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ca0f4ad2b7a36c799213ef0a213eb977a51e03dc",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d22b2a35729cb1de311cb650cd67518a24e13fc9",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Deferred",
"descriptions": [
{
"lang": "en",
"value": "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 <TASK>\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."
}
],
"lastModified": "2026-06-17T06:46:31.600",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}