305 lines
15 KiB
JSON
305 lines
15 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-2026-23120",
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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": "2026-01-13T15:37:45.970Z",
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"datePublished": "2026-02-14T15:09:51.223Z",
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"dateUpdated": "2026-10-19T18:25:31.962Z"
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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": "2026-05-23T16:03:54.143Z"
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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\nl2tp: avoid one data-race in l2tp_tunnel_del_work()\n\nWe should read sk->sk_socket only when dealing with kernel sockets.\n\nsyzbot reported the following data-race:\n\nBUG: KCSAN: data-race in l2tp_tunnel_del_work / sk_common_release\n\nwrite to 0xffff88811c182b20 of 8 bytes by task 5365 on cpu 0:\n sk_set_socket include/net/sock.h:2092 [inline]\n sock_orphan include/net/sock.h:2118 [inline]\n sk_common_release+0xae/0x230 net/core/sock.c:4003\n udp_lib_close+0x15/0x20 include/net/udp.h:325\n inet_release+0xce/0xf0 net/ipv4/af_inet.c:437\n __sock_release net/socket.c:662 [inline]\n sock_close+0x6b/0x150 net/socket.c:1455\n __fput+0x29b/0x650 fs/file_table.c:468\n ____fput+0x1c/0x30 fs/file_table.c:496\n task_work_run+0x131/0x1a0 kernel/task_work.c:233\n resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]\n __exit_to_user_mode_loop kernel/entry/common.c:44 [inline]\n exit_to_user_mode_loop+0x1fe/0x740 kernel/entry/common.c:75\n __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]\n syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]\n syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]\n syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]\n do_syscall_64+0x1e1/0x2b0 arch/x86/entry/syscall_64.c:100\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nread to 0xffff88811c182b20 of 8 bytes by task 827 on cpu 1:\n l2tp_tunnel_del_work+0x2f/0x1a0 net/l2tp/l2tp_core.c:1418\n process_one_work kernel/workqueue.c:3257 [inline]\n process_scheduled_works+0x4ce/0x9d0 kernel/workqueue.c:3340\n worker_thread+0x582/0x770 kernel/workqueue.c:3421\n kthread+0x489/0x510 kernel/kthread.c:463\n ret_from_fork+0x149/0x290 arch/x86/kernel/process.c:158\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246\n\nvalue changed: 0xffff88811b818000 -> 0x0000000000000000"
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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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"net/l2tp/l2tp_core.c"
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],
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"versions": [
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{
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"version": "d00fa9adc528c1b0e64d532556764852df8bd7b9",
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"lessThan": "1f63ca44b4f419a1663d94d1bb0b4e2beb73fdb4",
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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": "d00fa9adc528c1b0e64d532556764852df8bd7b9",
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"lessThan": "36c40a80109f1771d59558050b1a71e13c60c759",
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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": "d00fa9adc528c1b0e64d532556764852df8bd7b9",
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"lessThan": "eae074dab764ea181bbed5e88626889319177498",
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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": "d00fa9adc528c1b0e64d532556764852df8bd7b9",
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"lessThan": "68e92085427c84e7679ddb53c0d68836d220b6e7",
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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": "d00fa9adc528c1b0e64d532556764852df8bd7b9",
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"lessThan": "3d6d414b214ce31659bded2f8df50c93a3769474",
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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": "d00fa9adc528c1b0e64d532556764852df8bd7b9",
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"lessThan": "32d417497b79efb403d75f4c185fe6fd9d64b94f",
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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": "d00fa9adc528c1b0e64d532556764852df8bd7b9",
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"lessThan": "7a29f6bf60f2590fe5e9c4decb451e19afad2bcf",
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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": "15df699fdc5af46a9fb15ae2d9326294852de5b5",
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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": "18bdaefc715b4530b4b2fe670506bb47713664cc",
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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": "3.16.57",
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"lessThan": "3.17",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "4.15.8",
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"lessThan": "4.16",
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"status": "affected",
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"versionType": "semver"
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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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"net/l2tp/l2tp_core.c"
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],
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"versions": [
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{
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"version": "4.16",
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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": "4.16",
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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": "5.10.249",
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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": "5.15.199",
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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": "6.1.162",
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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": "6.6.122",
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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": "6.12.68",
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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": "6.18.8",
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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": "4.16",
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"versionEndExcluding": "5.10.249"
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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": "4.16",
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"versionEndExcluding": "5.15.199"
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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": "4.16",
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"versionEndExcluding": "6.1.162"
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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": "4.16",
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"versionEndExcluding": "6.6.122"
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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": "4.16",
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"versionEndExcluding": "6.12.68"
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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": "4.16",
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"versionEndExcluding": "6.18.8"
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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": "4.16",
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"versionEndExcluding": "6.19"
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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": "3.16.57"
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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": "4.15.8"
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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/1f63ca44b4f419a1663d94d1bb0b4e2beb73fdb4"
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},
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{
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"url": "https://git.kernel.org/stable/c/36c40a80109f1771d59558050b1a71e13c60c759"
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},
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{
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"url": "https://git.kernel.org/stable/c/eae074dab764ea181bbed5e88626889319177498"
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},
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{
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"url": "https://git.kernel.org/stable/c/68e92085427c84e7679ddb53c0d68836d220b6e7"
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},
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{
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"url": "https://git.kernel.org/stable/c/3d6d414b214ce31659bded2f8df50c93a3769474"
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},
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{
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"url": "https://git.kernel.org/stable/c/32d417497b79efb403d75f4c185fe6fd9d64b94f"
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},
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{
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"url": "https://git.kernel.org/stable/c/7a29f6bf60f2590fe5e9c4decb451e19afad2bcf"
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}
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],
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"title": "l2tp: avoid one data-race in l2tp_tunnel_del_work()",
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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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"id": "CVE-2026-23120",
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"role": "CISA Coordinator",
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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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"version": "2.0.3",
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"timestamp": "2026-06-10T20:41:40.769196Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-362",
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"description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"
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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": "2026-10-19T18:25:31.962Z"
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}
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}
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]
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}
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} |