CVE-2025-38270net: drv: netdevsim: don't napi_complete() from netpoll
Updated under an hour ago ()
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It affects Linux and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: net: drv: netdevsim: don't napi_complete() from netpoll netdevsim supports netpoll. Make sure we don't call napi_complete() from it, since it may not be scheduled. Breno reports hitting a warning in napi_complete_done(): WARNING: CPU: 14 PID: 104 at net/core/dev.c:6592 napi_complete_done+0x2cc/0x560 __napi_poll+0x2d8/0x3a0 handle_softirqs+0x1fe/0x710 This is presumably after netpoll stole the SCHED bit prematurely.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 3762ec05a9fbda16aaaa2568df679ab8ad13f38d before a8ff2e362d901200a1075c3ca9c56d9c7bbef389; from 3762ec05a9fbda16aaaa2568df679ab8ad13f38d before 6837dd877270c57689bd866de9f3de14172c2439; from 3762ec05a9fbda16aaaa2568df679ab8ad13f38d before 1264971017b4d7141352a7fe29021bdfce5d885d | CNA record |
linux linux_kernel linux:linux_kernel | from 6.10 before 6.12.34; from 6.13 before 6.15.3; 6.16 | NVD |
References
- https://git.kernel.org/stable/c/a8ff2e362d901200a1075c3ca9c56d9c7bbef389patch
- https://git.kernel.org/stable/c/6837dd877270c57689bd866de9f3de14172c2439patch
- https://git.kernel.org/stable/c/1264971017b4d7141352a7fe29021bdfce5d885dpatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.