{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-74613", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.920Z", "datePublished": "2026-08-22T15:31:59.062Z", "dateUpdated": "2026-08-22T15:31:59.062Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-22T15:31:59.062Z" }, "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." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/vmw_vsock/virtio_transport.c" ], "versions": [ { "version": "b917507e5ad983085d29069369778b16aa03a0a8", "lessThan": "a7658508f5fe8f1077a65e8cb9535d3426f37a2f", "status": "affected", "versionType": "git" }, { "version": "b917507e5ad983085d29069369778b16aa03a0a8", "lessThan": "1aa21e7c8702a7c37cd7d3cace1a652cfa5e8171", "status": "affected", "versionType": "git" }, { "version": "b917507e5ad983085d29069369778b16aa03a0a8", "lessThan": "4d37e3525cc346a1421c1bdeaad5848e249fc60c", "status": "affected", "versionType": "git" }, { "version": "b917507e5ad983085d29069369778b16aa03a0a8", "lessThan": "9d80a04129a6c27a690cb69de3fe3f50be5aa8b9", "status": "affected", "versionType": "git" }, { "version": "b917507e5ad983085d29069369778b16aa03a0a8", "lessThan": "a309b74e3fc052352ab778500449cb9c3853c363", "status": "affected", "versionType": "git" }, { "version": "b917507e5ad983085d29069369778b16aa03a0a8", "lessThan": "38c7763fdc533edb34dc8f4489c260e8ba2ccae9", "status": "affected", "versionType": "git" }, { "version": "b917507e5ad983085d29069369778b16aa03a0a8", "lessThan": "e82a5faea2e3886dfb2a65ce092a132e7e896915", "status": "affected", "versionType": "git" }, { "version": "b917507e5ad983085d29069369778b16aa03a0a8", "lessThan": "a31e0ad444698d8aa7534a0f89fda543730f97a5", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/vmw_vsock/virtio_transport.c" ], "versions": [ { "version": "5.3", "status": "affected" }, { "version": "0", "lessThan": "5.3", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.265", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.216", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.183", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.152", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.104", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.45", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1.9", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.10.265" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.15.216" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.1.183" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.6.152" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.12.104" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.18.45" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "7.1.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "7.2" } ] } ] } ], "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" } } } }