{"id":"CVE-2026-99048","state":"PUBLISHED","title":"gve: fix napi_disable deadlock when attempting to disable XSK pools","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ngve: fix napi_disable deadlock when attempting to disable XSK pools\n\nWhen disabling XSK pools, GVE calls the unlocked versions of\nnapi_disable and napi_enable. However, the netdev lock has already been\nacquired before ndo_bpf is called because GVE supports queue management\nops. Calling the unlocked versions of napi_disable/enable results in a\ndeadlock when attempting to disable XSK pools, as the thread attempts to\nre-acquire a lock it already holds.\n\nUpdate the NAPI calls to use the locked versions.\n\nThis issue was found in production.","publishedAt":"2026-10-23T12:22:13.825Z","updatedAt":"2026-10-23T12:22:13.825Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"606048cbd8346e616cfaee01b0143d072534136d","status":"affected","lessThan":"42935a61001927aa01db10b53b420efd37eaa99b","versionType":"git"},{"version":"606048cbd8346e616cfaee01b0143d072534136d","status":"affected","lessThan":"3d377911ce81fd4e61af814e750d8e08879a5208","versionType":"git"},{"version":"606048cbd8346e616cfaee01b0143d072534136d","status":"affected","lessThan":"0cb6939a4dfefa822007b7a71986e06bc4f61f54","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/google/gve/gve_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.16","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/google/gve/gve_main.c"]}],"references":["https://git.kernel.org/stable/c/42935a61001927aa01db10b53b420efd37eaa99b","https://git.kernel.org/stable/c/3d377911ce81fd4e61af814e750d8e08879a5208","https://git.kernel.org/stable/c/0cb6939a4dfefa822007b7a71986e06bc4f61f54"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/99xxx/CVE-2026-99048.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-99048","state":"PUBLISHED","datePublished":"2026-10-23T12:22:13.825Z","dateUpdated":"2026-10-23T12:22:13.825Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.388Z"},"containers":{"cna":{"title":"gve: fix napi_disable deadlock when attempting to disable XSK pools","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ngve: fix napi_disable deadlock when attempting to disable XSK pools\n\nWhen disabling XSK pools, GVE calls the unlocked versions of\nnapi_disable and napi_enable. However, the netdev lock has already been\nacquired before ndo_bpf is called because GVE supports queue management\nops. Calling the unlocked versions of napi_disable/enable results in a\ndeadlock when attempting to disable XSK pools, as the thread attempts to\nre-acquire a lock it already holds.\n\nUpdate the NAPI calls to use the locked versions.\n\nThis issue was found in production."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"606048cbd8346e616cfaee01b0143d072534136d","status":"affected","lessThan":"42935a61001927aa01db10b53b420efd37eaa99b","versionType":"git"},{"version":"606048cbd8346e616cfaee01b0143d072534136d","status":"affected","lessThan":"3d377911ce81fd4e61af814e750d8e08879a5208","versionType":"git"},{"version":"606048cbd8346e616cfaee01b0143d072534136d","status":"affected","lessThan":"0cb6939a4dfefa822007b7a71986e06bc4f61f54","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/google/gve/gve_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.16","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/google/gve/gve_main.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/42935a61001927aa01db10b53b420efd37eaa99b"},{"url":"https://git.kernel.org/stable/c/3d377911ce81fd4e61af814e750d8e08879a5208"},{"url":"https://git.kernel.org/stable/c/0cb6939a4dfefa822007b7a71986e06bc4f61f54"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-23T12:22:13.825Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.2.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}