gve: fix napi_disable deadlock when attempting to disable XSK pools
In the Linux kernel, the following vulnerability has been resolved: gve: fix napi_disable deadlock when attempting to disable XSK pools When disabling XSK pools, GVE calls the unlocked versions of napi_disable and napi_enable. However, the netdev lock has already been acquired before ndo_bpf is called because GVE supports queue management ops. Calling the unlocked versions of napi_disable/enable results in a deadlock when attempting to disable XSK pools, as the thread attempts to re-acquire a lock it already holds. Update the NAPI calls to use the locked versions. This issue was found in production.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.18.57, 7.2.11
- CVEs
- CVE-2026-99048
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 11:38 UTC · Revision 1
Source evidence
gve: fix napi_disable deadlock when attempting to disable XSK pools
core-osv · Original sourcePublished 23 Oct 2026, 12:22 UTC
In the Linux kernel, the following vulnerability has been resolved: gve: fix napi_disable deadlock when attempting to disable XSK pools When disabling XSK pools, GVE calls the unlocked versions of napi_disable and napi_enable. However, the netdev lock has already been acquired before ndo_bpf is called because GVE supports queue management ops. Calling the unlocked versions of napi_disable/enable results in a deadlock when attempting to disable XSK pools, as the thread attempts to re-acquire a lock it already holds. Update the NAPI calls to use the locked versions. This issue was found in production.
osv:CVE-2026-99048
Kernel
Fixed versions: 6.18.57, 7.2.11
Complete source record
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"title": "gve: fix napi_disable deadlock when attempting to disable XSK pools",
"summary": "In the Linux kernel, the following vulnerability has been resolved: gve: fix napi_disable deadlock when attempting to disable XSK pools When disabling XSK pools, GVE calls the unlocked versions of napi_disable and napi_enable. However, the netdev lock has already been acquired before ndo_bpf is called because GVE supports queue management ops. Calling the unlocked versions of napi_disable/enable results in a deadlock when attempting to disable XSK pools, as the thread attempts to re-acquire a lock it already holds. Update the NAPI calls to use the locked versions. This issue was found in production.",
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