{"api_version":"1","generated_at":"2026-08-23T21:26:12+00:00","cve":"CVE-2026-74613","urls":{"html":"https://cve.report/CVE-2026-74613","api":"https://cve.report/api/cve/CVE-2026-74613.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74613","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74613"},"summary":{"title":"vsock/virtio: avoid refilling the RX queue after teardown","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: avoid refilling the RX queue after teardown\n\nCommit b917507e5ad9 (\"vsock/virtio: stop workers during the .remove()\")\nmade the RX worker jump to its common exit when rx_run is clear.  That\nexit still refills the RX queue when the buffer count is low, so work\nqueued across virtio_vsock_vqs_del() can add buffers after the virtqueues\nhave been deleted.\n\nBUG: KASAN: slab-use-after-free in virtqueue_add_sgs\nRead of size 4 by task kworker/0:1\nWorkqueue: virtio_vsock virtio_transport_rx_work\nCall Trace:\n virtqueue_add_sgs (drivers/virtio/virtio_ring.c:2796)\n virtio_vsock_rx_fill (net/vmw_vsock/virtio_transport.c:332)\n virtio_transport_rx_work (net/vmw_vsock/virtio_transport.c:701)\n process_one_work (kernel/workqueue.c:3314)\n worker_thread (kernel/workqueue.c:3478)\n kthread (kernel/kthread.c:436)\n ret_from_fork (arch/x86/kernel/process.c:158)\n ret_from_fork_asm (arch/x86/entry/entry_64.S:245)\n...\nFreed by task 141:\n kfree (mm/slub.c:6566)\n vp_del_vq (drivers/virtio/virtio_pci_common.c:259)\n vp_del_vqs (drivers/virtio/virtio_pci_common.c:285)\n virtio_vsock_freeze (net/vmw_vsock/virtio_transport.c:912)\n virtio_device_freeze (drivers/virtio/virtio.c:658)\n virtio_pci_freeze (drivers/virtio/virtio_pci_common.c:601)\n pci_pm_freeze (drivers/pci/pci-driver.c:1098)\n device_suspend (drivers/base/power/main.c:1968)\nKernel panic - not syncing: KASAN: panic_on_warn set ...\n\nJump to a no-refill exit when rx_run is clear, leaving the normal exit\nto replenish a running queue.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-22 16:16:33","updated_at":"2026-08-22 16:16:33"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/e82a5faea2e3886dfb2a65ce092a132e7e896915","name":"https://git.kernel.org/stable/c/e82a5faea2e3886dfb2a65ce092a132e7e896915","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9d80a04129a6c27a690cb69de3fe3f50be5aa8b9","name":"https://git.kernel.org/stable/c/9d80a04129a6c27a690cb69de3fe3f50be5aa8b9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/38c7763fdc533edb34dc8f4489c260e8ba2ccae9","name":"https://git.kernel.org/stable/c/38c7763fdc533edb34dc8f4489c260e8ba2ccae9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1aa21e7c8702a7c37cd7d3cace1a652cfa5e8171","name":"https://git.kernel.org/stable/c/1aa21e7c8702a7c37cd7d3cace1a652cfa5e8171","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a7658508f5fe8f1077a65e8cb9535d3426f37a2f","name":"https://git.kernel.org/stable/c/a7658508f5fe8f1077a65e8cb9535d3426f37a2f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a31e0ad444698d8aa7534a0f89fda543730f97a5","name":"https://git.kernel.org/stable/c/a31e0ad444698d8aa7534a0f89fda543730f97a5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a309b74e3fc052352ab778500449cb9c3853c363","name":"https://git.kernel.org/stable/c/a309b74e3fc052352ab778500449cb9c3853c363","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4d37e3525cc346a1421c1bdeaad5848e249fc60c","name":"https://git.kernel.org/stable/c/4d37e3525cc346a1421c1bdeaad5848e249fc60c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74613","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74613","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b917507e5ad983085d29069369778b16aa03a0a8 a7658508f5fe8f1077a65e8cb9535d3426f37a2f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b917507e5ad983085d29069369778b16aa03a0a8 1aa21e7c8702a7c37cd7d3cace1a652cfa5e8171 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b917507e5ad983085d29069369778b16aa03a0a8 4d37e3525cc346a1421c1bdeaad5848e249fc60c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b917507e5ad983085d29069369778b16aa03a0a8 9d80a04129a6c27a690cb69de3fe3f50be5aa8b9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b917507e5ad983085d29069369778b16aa03a0a8 a309b74e3fc052352ab778500449cb9c3853c363 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b917507e5ad983085d29069369778b16aa03a0a8 38c7763fdc533edb34dc8f4489c260e8ba2ccae9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b917507e5ad983085d29069369778b16aa03a0a8 e82a5faea2e3886dfb2a65ce092a132e7e896915 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b917507e5ad983085d29069369778b16aa03a0a8 a31e0ad444698d8aa7534a0f89fda543730f97a5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.3","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.3 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.265 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.216 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.183 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.152 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.104 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.45 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.9 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/vmw_vsock/virtio_transport.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a7658508f5fe8f1077a65e8cb9535d3426f37a2f","status":"affected","version":"b917507e5ad983085d29069369778b16aa03a0a8","versionType":"git"},{"lessThan":"1aa21e7c8702a7c37cd7d3cace1a652cfa5e8171","status":"affected","version":"b917507e5ad983085d29069369778b16aa03a0a8","versionType":"git"},{"lessThan":"4d37e3525cc346a1421c1bdeaad5848e249fc60c","status":"affected","version":"b917507e5ad983085d29069369778b16aa03a0a8","versionType":"git"},{"lessThan":"9d80a04129a6c27a690cb69de3fe3f50be5aa8b9","status":"affected","version":"b917507e5ad983085d29069369778b16aa03a0a8","versionType":"git"},{"lessThan":"a309b74e3fc052352ab778500449cb9c3853c363","status":"affected","version":"b917507e5ad983085d29069369778b16aa03a0a8","versionType":"git"},{"lessThan":"38c7763fdc533edb34dc8f4489c260e8ba2ccae9","status":"affected","version":"b917507e5ad983085d29069369778b16aa03a0a8","versionType":"git"},{"lessThan":"e82a5faea2e3886dfb2a65ce092a132e7e896915","status":"affected","version":"b917507e5ad983085d29069369778b16aa03a0a8","versionType":"git"},{"lessThan":"a31e0ad444698d8aa7534a0f89fda543730f97a5","status":"affected","version":"b917507e5ad983085d29069369778b16aa03a0a8","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/vmw_vsock/virtio_transport.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.3"},{"lessThan":"5.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.265","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.216","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.183","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.152","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.104","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.45","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.265","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.216","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.183","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.152","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.104","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.45","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.9","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"5.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: avoid refilling the RX queue after teardown\n\nCommit b917507e5ad9 (\"vsock/virtio: stop workers during the .remove()\")\nmade the RX worker jump to its common exit when rx_run is clear.  That\nexit still refills the RX queue when the buffer count is low, so work\nqueued across virtio_vsock_vqs_del() can add buffers after the virtqueues\nhave been deleted.\n\nBUG: KASAN: slab-use-after-free in virtqueue_add_sgs\nRead of size 4 by task kworker/0:1\nWorkqueue: virtio_vsock virtio_transport_rx_work\nCall Trace:\n virtqueue_add_sgs (drivers/virtio/virtio_ring.c:2796)\n virtio_vsock_rx_fill (net/vmw_vsock/virtio_transport.c:332)\n virtio_transport_rx_work (net/vmw_vsock/virtio_transport.c:701)\n process_one_work (kernel/workqueue.c:3314)\n worker_thread (kernel/workqueue.c:3478)\n kthread (kernel/kthread.c:436)\n ret_from_fork (arch/x86/kernel/process.c:158)\n ret_from_fork_asm (arch/x86/entry/entry_64.S:245)\n...\nFreed by task 141:\n kfree (mm/slub.c:6566)\n vp_del_vq (drivers/virtio/virtio_pci_common.c:259)\n vp_del_vqs (drivers/virtio/virtio_pci_common.c:285)\n virtio_vsock_freeze (net/vmw_vsock/virtio_transport.c:912)\n virtio_device_freeze (drivers/virtio/virtio.c:658)\n virtio_pci_freeze (drivers/virtio/virtio_pci_common.c:601)\n pci_pm_freeze (drivers/pci/pci-driver.c:1098)\n device_suspend (drivers/base/power/main.c:1968)\nKernel panic - not syncing: KASAN: panic_on_warn set ...\n\nJump to a no-refill exit when rx_run is clear, leaving the normal exit\nto replenish a running queue."}],"providerMetadata":{"dateUpdated":"2026-08-22T15:31:59.062Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/a7658508f5fe8f1077a65e8cb9535d3426f37a2f"},{"url":"https://git.kernel.org/stable/c/1aa21e7c8702a7c37cd7d3cace1a652cfa5e8171"},{"url":"https://git.kernel.org/stable/c/4d37e3525cc346a1421c1bdeaad5848e249fc60c"},{"url":"https://git.kernel.org/stable/c/9d80a04129a6c27a690cb69de3fe3f50be5aa8b9"},{"url":"https://git.kernel.org/stable/c/a309b74e3fc052352ab778500449cb9c3853c363"},{"url":"https://git.kernel.org/stable/c/38c7763fdc533edb34dc8f4489c260e8ba2ccae9"},{"url":"https://git.kernel.org/stable/c/e82a5faea2e3886dfb2a65ce092a132e7e896915"},{"url":"https://git.kernel.org/stable/c/a31e0ad444698d8aa7534a0f89fda543730f97a5"}],"title":"vsock/virtio: avoid refilling the RX queue after teardown","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74613","datePublished":"2026-08-22T15:31:59.062Z","dateReserved":"2026-08-15T05:44:03.920Z","dateUpdated":"2026-08-22T15:31:59.062Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-22 16:16:33","lastModifiedDate":"2026-08-22 16:16:33","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74613","Ordinal":"1","Title":"vsock/virtio: avoid refilling the RX queue after teardown","CVE":"CVE-2026-74613","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74613","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: avoid refilling the RX queue after teardown\n\nCommit b917507e5ad9 (\"vsock/virtio: stop workers during the .remove()\")\nmade the RX worker jump to its common exit when rx_run is clear.  That\nexit still refills the RX queue when the buffer count is low, so work\nqueued across virtio_vsock_vqs_del() can add buffers after the virtqueues\nhave been deleted.\n\nBUG: KASAN: slab-use-after-free in virtqueue_add_sgs\nRead of size 4 by task kworker/0:1\nWorkqueue: virtio_vsock virtio_transport_rx_work\nCall Trace:\n virtqueue_add_sgs (drivers/virtio/virtio_ring.c:2796)\n virtio_vsock_rx_fill (net/vmw_vsock/virtio_transport.c:332)\n virtio_transport_rx_work (net/vmw_vsock/virtio_transport.c:701)\n process_one_work (kernel/workqueue.c:3314)\n worker_thread (kernel/workqueue.c:3478)\n kthread (kernel/kthread.c:436)\n ret_from_fork (arch/x86/kernel/process.c:158)\n ret_from_fork_asm (arch/x86/entry/entry_64.S:245)\n...\nFreed by task 141:\n kfree (mm/slub.c:6566)\n vp_del_vq (drivers/virtio/virtio_pci_common.c:259)\n vp_del_vqs (drivers/virtio/virtio_pci_common.c:285)\n virtio_vsock_freeze (net/vmw_vsock/virtio_transport.c:912)\n virtio_device_freeze (drivers/virtio/virtio.c:658)\n virtio_pci_freeze (drivers/virtio/virtio_pci_common.c:601)\n pci_pm_freeze (drivers/pci/pci-driver.c:1098)\n device_suspend (drivers/base/power/main.c:1968)\nKernel panic - not syncing: KASAN: panic_on_warn set ...\n\nJump to a no-refill exit when rx_run is clear, leaving the normal exit\nto replenish a running queue.","Type":"Description","Title":"vsock/virtio: avoid refilling the RX queue after teardown"}]}}}