CVE-2025-38270

Description

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.

Reserved 2025-04-16 | Published 2025-07-10 | Updated 2025-07-10 | Assigner Linux

Product status

Default status
unaffected

3762ec05a9fbda16aaaa2568df679ab8ad13f38d before a8ff2e362d901200a1075c3ca9c56d9c7bbef389
affected

3762ec05a9fbda16aaaa2568df679ab8ad13f38d before 6837dd877270c57689bd866de9f3de14172c2439
affected

3762ec05a9fbda16aaaa2568df679ab8ad13f38d before 1264971017b4d7141352a7fe29021bdfce5d885d
affected

Default status
affected

6.10
affected

Any version before 6.10
unaffected

6.12.34
unaffected

6.15.3
unaffected

6.16-rc2
unaffected

References

git.kernel.org/...c/a8ff2e362d901200a1075c3ca9c56d9c7bbef389

git.kernel.org/...c/6837dd877270c57689bd866de9f3de14172c2439

git.kernel.org/...c/1264971017b4d7141352a7fe29021bdfce5d885d

cve.org (CVE-2025-38270)

nvd.nist.gov (CVE-2025-38270)

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