CVE-2026-80997— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于ipa_start_xmit()在调用pm_runtime_get()前无条件停止TX队列，运行时恢复唤醒被过早消耗，导致传输队列永久停滞、数据包堆积且无法恢复，造成拒绝服务。
可能的 ATT&CK 技术 1 AI
T1490 · Inhibit System Recovery影响版本矩阵 10
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 688de12f080f10dff8f3ddc80103e432ad8deb0b< 30d5226bac52073c91ce85c2dcff93b866baefdb |
affected |
688de12f080f10dff8f3ddc80103e432ad8deb0b< 62da38b4b3a0dd74a3e0eecf4992d40385924205 |
affected | ||
688de12f080f10dff8f3ddc80103e432ad8deb0b< 30cef9c1229a36a9c80edb29296459849a2fbaa3 |
affected | ||
688de12f080f10dff8f3ddc80103e432ad8deb0b< 3cbfd627ee720f3d2460d2cbe2fe9e4130240db6 |
affected | ||
6.9 |
affected | ||
< 6.9 |
unaffected | ||
6.12.109≤ 6.12.* |
unaffected | ||
6.18.50≤ 6.18.* |
unaffected | ||
| … +2 条更多 | |||
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一、 漏洞 CVE-2026-80997 基础信息
漏洞信息
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Vulnerability Title
net: ipa: fix stalled modem TX queue after runtime resume
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
net: ipa: fix stalled modem TX queue after runtime resume
ipa_start_xmit() unconditionally stops the TX queue before calling
pm_runtime_get(), relying on the wake scheduled by runtime resume
(ipa_modem_wake_queue_work()) to restart it once power is ACTIVE.
But that work is queued from within the runtime resume callback,
before the device's power state reaches RPM_ACTIVE, so it can run
while the device is still RPM_RESUMING. The wake is then consumed
too early: the transmit it restarts stops the queue again,
pm_runtime_get() returns -EINPROGRESS without arranging any future
wake (deferred_resume exists only for RPM_SUSPENDING), and after the
resume completes nothing is left to wake the queue. Transmit stalls
permanently: packets pile up in the qdisc behind the stopped queue,
the device runtime-suspends, and since the netdev registers no
ndo_tx_timeout the watchdog never fires. Observed on SM7635
(Fairphone 6) as the cellular data path going permanently deaf
within hours, RX included, since nothing resumes the suspended
endpoints.
Close the window by making the wake work wait for the resume to
complete (pm_runtime_get_sync()) before waking the queue. Every
queue stop is then guaranteed a later wake that happens while power
is ACTIVE; a transmit racing a new suspend/resume cycle re-schedules
the work. If the device could not be resumed, wake the queue anyway
so pending packets are dropped by the transmit path rather than
stranded.
The STARTED power flag used to narrow this window: a wake running
before the transmit path's stop suppressed that stop, but only once,
as the flag was cleared by the first stop it absorbed. Removing the
flag made a single transmit during an in-flight resume sufficient to
strand the queue, which is the form observed.
With an accelerated reproducer (autosuspend delay shortened to 5 ms,
~20 packets/s of TX), an unpatched kernel stalled three times in
230 s / 4380 packets; with this patch the same test ran 3601 s /
70298 packets without a stall.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于ipa_start_xmit()在调用pm_runtime_get()前无条件停止TX队列，运行时恢复唤醒被过早消耗，导致传输队列永久停滞、数据包堆积且无法恢复，造成拒绝服务。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2026-80997 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-80997 补丁与修复 (4)
同批安全公告 · Linux · 2026-09-11 · 共 431 条
| CVE-2026-89688 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89656 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89655 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89658 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89660 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89659 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89662 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89669 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89674 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89675 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89676 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89677 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89681 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89686 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89703 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89479 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89478 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89702 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89482 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-89708 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
显示前 20 条，共 431 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-80997
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