{ "dataType": "CVE_RECORD", "cveMetadata": { "cveId": "CVE-2024-26698", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.157Z", "datePublished": "2024-04-03T14:54:58.577Z", "dateUpdated": "2024-08-02T00:14:12.951Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:21:05.221Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhv_netvsc: Fix race condition between netvsc_probe and netvsc_remove\n\nIn commit ac5047671758 (\"hv_netvsc: Disable NAPI before closing the\nVMBus channel\"), napi_disable was getting called for all channels,\nincluding all subchannels without confirming if they are enabled or not.\n\nThis caused hv_netvsc getting hung at napi_disable, when netvsc_probe()\nhas finished running but nvdev->subchan_work has not started yet.\nnetvsc_subchan_work() -> rndis_set_subchannel() has not created the\nsub-channels and because of that netvsc_sc_open() is not running.\nnetvsc_remove() calls cancel_work_sync(&nvdev->subchan_work), for which\nnetvsc_subchan_work did not run.\n\nnetif_napi_add() sets the bit NAPI_STATE_SCHED because it ensures NAPI\ncannot be scheduled. Then netvsc_sc_open() -> napi_enable will clear the\nNAPIF_STATE_SCHED bit, so it can be scheduled. napi_disable() does the\nopposite.\n\nNow during netvsc_device_remove(), when napi_disable is called for those\nsubchannels, napi_disable gets stuck on infinite msleep.\n\nThis fix addresses this problem by ensuring that napi_disable() is not\ngetting called for non-enabled NAPI struct.\nBut netif_napi_del() is still necessary for these non-enabled NAPI struct\nfor cleanup purpose.\n\nCall trace:\n[ 654.559417] task:modprobe state:D stack: 0 pid: 2321 ppid: 1091 flags:0x00004002\n[ 654.568030] Call Trace:\n[ 654.571221] \n[ 654.573790] __schedule+0x2d6/0x960\n[ 654.577733] schedule+0x69/0xf0\n[ 654.581214] schedule_timeout+0x87/0x140\n[ 654.585463] ? __bpf_trace_tick_stop+0x20/0x20\n[ 654.590291] msleep+0x2d/0x40\n[ 654.593625] napi_disable+0x2b/0x80\n[ 654.597437] netvsc_device_remove+0x8a/0x1f0 [hv_netvsc]\n[ 654.603935] rndis_filter_device_remove+0x194/0x1c0 [hv_netvsc]\n[ 654.611101] ? do_wait_intr+0xb0/0xb0\n[ 654.615753] netvsc_remove+0x7c/0x120 [hv_netvsc]\n[ 654.621675] vmbus_remove+0x27/0x40 [hv_vmbus]" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/hyperv/netvsc.c" ], "versions": [ { "version": "ac5047671758", "lessThan": "9ec807e7b6f5", "status": "affected", "versionType": "git" }, { "version": "ac5047671758", "lessThan": "7656372ae190", "status": "affected", "versionType": "git" }, { "version": "ac5047671758", "lessThan": "48a8ccccffba", "status": "affected", "versionType": "git" }, { "version": "ac5047671758", "lessThan": "22a77c0f5b82", "status": "affected", "versionType": "git" }, { "version": "ac5047671758", "lessThan": "0e8875de9dad", "status": "affected", "versionType": "git" }, { "version": "ac5047671758", "lessThan": "e0526ec5360a", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/hyperv/netvsc.c" ], "versions": [ { "version": "5.8", "status": "affected" }, { "version": "0", "lessThan": "5.8", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.210", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.149", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.79", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.18", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.7.6", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.8", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/9ec807e7b6f5fcf9499f3baa69f254bb239a847f" }, { "url": "https://git.kernel.org/stable/c/7656372ae190e54e8c8cf1039725a5ea59fdf84a" }, { "url": "https://git.kernel.org/stable/c/48a8ccccffbae10c91d31fc872db5c31aba07518" }, { "url": "https://git.kernel.org/stable/c/22a77c0f5b8233237731df3288d067af51a2fd7b" }, { "url": "https://git.kernel.org/stable/c/0e8875de9dad12805ff66e92cd5edea6a421f1cd" }, { "url": "https://git.kernel.org/stable/c/e0526ec5360a48ad3ab2e26e802b0532302a7e11" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html" } ], "title": "hv_netvsc: Fix race condition between netvsc_probe and netvsc_remove", "x_generator": { "engine": "bippy-a5840b7849dd" } }, "adp": [ { "title": "CISA ADP Vulnrichment", "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-26698", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-04-03T18:03:45.740958Z" } } } ], "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:49:08.824Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:14:12.951Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/9ec807e7b6f5fcf9499f3baa69f254bb239a847f", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/7656372ae190e54e8c8cf1039725a5ea59fdf84a", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/48a8ccccffbae10c91d31fc872db5c31aba07518", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/22a77c0f5b8233237731df3288d067af51a2fd7b", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/0e8875de9dad12805ff66e92cd5edea6a421f1cd", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/e0526ec5360a48ad3ab2e26e802b0532302a7e11", "tags": [ "x_transferred" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "tags": [ "x_transferred" ] } ] } ] }, "dataVersion": "5.1" }