CVE-2025-40108
In the Linux kernel, the following vulnerability has been resolved:
serial: qcom-geni: Fix blocked task
Revert commit 1afa70632c39 ("serial: qcom-geni: Enable PM runtime for serial driver") and its dependent commit 86fa39dd6fb7 ("serial: qcom-geni: Enable Serial on SA8255p Qualcomm platforms") because the first one causes regression - hang task on Qualcomm RB1 board (QRB2210) and unable to use serial at all during normal boot:
The issue was reported on 12th of August and was ignored by author of commits introducing issue for two weeks. Only after complaining author produced a fix which did not work, so if original commits cannot be reliably fixed for 5 weeks, they obviously are buggy and need to be dropped.
Detalles técnicos trazas, registros y código del informe original
INFO: task kworker/u16:0:12 blocked for more than 42 seconds.
Not tainted 6.17.0-rc1-00004-g53e760d89498 #9
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u16:0 state:D stack:0 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00000010
Workqueue: async async_run_entry_fn
Call trace:
__switch_to+0xe8/0x1a0 (T)
__schedule+0x290/0x7c0
schedule+0x34/0x118
rpm_resume+0x14c/0x66c
rpm_resume+0x2a4/0x66c
rpm_resume+0x2a4/0x66c
rpm_resume+0x2a4/0x66c
__pm_runtime_resume+0x50/0x9c
__driver_probe_device+0x58/0x120
driver_probe_device+0x3c/0x154
__driver_attach_async_helper+0x4c/0xc0
async_run_entry_fn+0x34/0xe0
process_one_work+0x148/0x290
worker_thread+0x2c4/0x3e0
kthread+0x118/0x1c0
ret_from_fork+0x10/0x20CVSS
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: 0.17%
- Percentil entre todas las CVEs puntuadas: 6
- 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
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-40108",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "1afa70632c390488308d8e94e037df6895a3e1ac",
"lessThan": "1e810d81769e16637bcd845ba37fbc1eba5d4bd2",
"versionType": "git"
},
{
"status": "affected",
"version": "1afa70632c390488308d8e94e037df6895a3e1ac",
"lessThan": "a699213d4e6ef4286348c6439837990f121e0c03",
"versionType": "git"
}
],
"programFiles": [
"drivers/tty/serial/qcom_geni_serial.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.17"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.17",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.17.2",
"versionType": "semver",
"lessThanOrEqual": "6.17.*"
},
{
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/tty/serial/qcom_geni_serial.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-11-09T05:15:35.580",
"references": [
{
"url": "https://git.kernel.org/stable/c/1e810d81769e16637bcd845ba37fbc1eba5d4bd2",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/a699213d4e6ef4286348c6439837990f121e0c03",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Deferred",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nserial: qcom-geni: Fix blocked task\n\nRevert commit 1afa70632c39 (\"serial: qcom-geni: Enable PM runtime for\nserial driver\") and its dependent commit 86fa39dd6fb7 (\"serial:\nqcom-geni: Enable Serial on SA8255p Qualcomm platforms\") because the\nfirst one causes regression - hang task on Qualcomm RB1 board (QRB2210)\nand unable to use serial at all during normal boot:\n\n INFO: task kworker/u16:0:12 blocked for more than 42 seconds.\n Not tainted 6.17.0-rc1-00004-g53e760d89498 #9\n \"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n task:kworker/u16:0 state:D stack:0 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00000010\n Workqueue: async async_run_entry_fn\n Call trace:\n __switch_to+0xe8/0x1a0 (T)\n __schedule+0x290/0x7c0\n schedule+0x34/0x118\n rpm_resume+0x14c/0x66c\n rpm_resume+0x2a4/0x66c\n rpm_resume+0x2a4/0x66c\n rpm_resume+0x2a4/0x66c\n __pm_runtime_resume+0x50/0x9c\n __driver_probe_device+0x58/0x120\n driver_probe_device+0x3c/0x154\n __driver_attach_async_helper+0x4c/0xc0\n async_run_entry_fn+0x34/0xe0\n process_one_work+0x148/0x290\n worker_thread+0x2c4/0x3e0\n kthread+0x118/0x1c0\n ret_from_fork+0x10/0x20\n\nThe issue was reported on 12th of August and was ignored by author of\ncommits introducing issue for two weeks. Only after complaining author\nproduced a fix which did not work, so if original commits cannot be\nreliably fixed for 5 weeks, they obviously are buggy and need to be\ndropped."
}
],
"lastModified": "2026-06-17T09:21:16.670",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}