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CVE-2025-38270

net: drv: netdevsim: don't napi_complete() from netpoll PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 3762ec05a9fbda16aaaa2568df679ab8ad13f38d before a8ff2e362d901200a1075c3ca9c56d9c7bbef389; affected 3762ec05a9fbda16aaaa2568df679ab8ad13f38d before 6837dd877270c57689bd866de9f3de14172c2439; affected 3762ec05a9fbda16aaaa2568df679ab8ad13f38d before 1264971017b4d7141352a7fe29021bdfce5d885d
Linux / Linuxaffected 6.10; unaffected 0 before 6.10; unaffected 6.12.34 through 6.12.*; unaffected 6.15.3 through 6.15.*; unaffected 6.16 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.