282 lines
14 KiB
JSON
282 lines
14 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-68366",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-12-16T14:48:05.308Z",
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"datePublished": "2025-12-24T10:32:53.399Z",
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"dateUpdated": "2026-06-16T19:12:35.384Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T21:51:48.993Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: defer config unlock in nbd_genl_connect\n\nThere is one use-after-free warning when running NBD_CMD_CONNECT and\nNBD_CLEAR_SOCK:\n\nnbd_genl_connect\n nbd_alloc_and_init_config // config_refs=1\n nbd_start_device // config_refs=2\n set NBD_RT_HAS_CONFIG_REF\t\t\topen nbd // config_refs=3\n recv_work done // config_refs=2\n\t\t\t\t\t\tNBD_CLEAR_SOCK // config_refs=1\n\t\t\t\t\t\tclose nbd // config_refs=0\n refcount_inc -> uaf\n\n------------[ cut here ]------------\nrefcount_t: addition on 0; use-after-free.\nWARNING: CPU: 24 PID: 1014 at lib/refcount.c:25 refcount_warn_saturate+0x12e/0x290\n nbd_genl_connect+0x16d0/0x1ab0\n genl_family_rcv_msg_doit+0x1f3/0x310\n genl_rcv_msg+0x44a/0x790\n\nThe issue can be easily reproduced by adding a small delay before\nrefcount_inc(&nbd->config_refs) in nbd_genl_connect():\n\n mutex_unlock(&nbd->config_lock);\n if (!ret) {\n set_bit(NBD_RT_HAS_CONFIG_REF, &config->runtime_flags);\n+ printk(\"before sleep\\n\");\n+ mdelay(5 * 1000);\n+ printk(\"after sleep\\n\");\n refcount_inc(&nbd->config_refs);\n nbd_connect_reply(info, nbd->index);\n }"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/block/nbd.c"
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],
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"versions": [
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{
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"version": "e46c7287b1c27683a8e30ca825fb98e2b97f1099",
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"lessThan": "330d688a5ca53857828081a3cf31b92ad1b0b3ed",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e46c7287b1c27683a8e30ca825fb98e2b97f1099",
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"lessThan": "cd93db1b1b4460e6ee77564024ea461e5940f69c",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e46c7287b1c27683a8e30ca825fb98e2b97f1099",
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"lessThan": "ae3e7bc1f4b393ae20e5c85583eb2c6977374716",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e46c7287b1c27683a8e30ca825fb98e2b97f1099",
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"lessThan": "2e5e0665a594f076ef2b9439447bae8be293d09d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e46c7287b1c27683a8e30ca825fb98e2b97f1099",
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"lessThan": "c9b99c948b4fb014812afe7b5ccf2db121d22e46",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e46c7287b1c27683a8e30ca825fb98e2b97f1099",
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"lessThan": "9a38306643874566d20f7aba7dff9e6f657b51a9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e46c7287b1c27683a8e30ca825fb98e2b97f1099",
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"lessThan": "c9e805f6a35d1dd189a9345595a5c20e87611942",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e46c7287b1c27683a8e30ca825fb98e2b97f1099",
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"lessThan": "1649714b930f9ea6233ce0810ba885999da3b5d4",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/block/nbd.c"
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],
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"versions": [
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{
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"version": "4.12",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.12",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.248",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.198",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.160",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.120",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.63",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.17.13",
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"lessThanOrEqual": "6.17.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.2",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.12",
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"versionEndExcluding": "5.10.248"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.12",
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"versionEndExcluding": "5.15.198"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.12",
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"versionEndExcluding": "6.1.160"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.12",
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"versionEndExcluding": "6.6.120"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.12",
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"versionEndExcluding": "6.12.63"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.12",
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"versionEndExcluding": "6.17.13"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.12",
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"versionEndExcluding": "6.18.2"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.12",
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"versionEndExcluding": "6.19"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/330d688a5ca53857828081a3cf31b92ad1b0b3ed"
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},
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{
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"url": "https://git.kernel.org/stable/c/cd93db1b1b4460e6ee77564024ea461e5940f69c"
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},
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{
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"url": "https://git.kernel.org/stable/c/ae3e7bc1f4b393ae20e5c85583eb2c6977374716"
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},
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{
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"url": "https://git.kernel.org/stable/c/2e5e0665a594f076ef2b9439447bae8be293d09d"
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},
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{
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"url": "https://git.kernel.org/stable/c/c9b99c948b4fb014812afe7b5ccf2db121d22e46"
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},
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{
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"url": "https://git.kernel.org/stable/c/9a38306643874566d20f7aba7dff9e6f657b51a9"
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},
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{
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"url": "https://git.kernel.org/stable/c/c9e805f6a35d1dd189a9345595a5c20e87611942"
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},
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{
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"url": "https://git.kernel.org/stable/c/1649714b930f9ea6233ce0810ba885999da3b5d4"
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}
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],
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"title": "nbd: defer config unlock in nbd_genl_connect",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-06-16T19:12:23.169488Z",
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"id": "CVE-2025-68366",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-06-16T19:12:35.384Z"
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}
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}
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]
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}
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} |