{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-21862", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.780Z", "datePublished": "2025-03-12T09:42:19.881Z", "dateUpdated": "2026-07-14T12:40:19.995Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:07:56.958Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrop_monitor: fix incorrect initialization order\n\nSyzkaller reports the following bug:\n\nBUG: spinlock bad magic on CPU#1, syz-executor.0/7995\n lock: 0xffff88805303f3e0, .magic: 00000000, .owner: /-1, .owner_cpu: 0\nCPU: 1 PID: 7995 Comm: syz-executor.0 Tainted: G E 5.10.209+ #1\nHardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020\nCall Trace:\n __dump_stack lib/dump_stack.c:77 [inline]\n dump_stack+0x119/0x179 lib/dump_stack.c:118\n debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline]\n do_raw_spin_lock+0x1f6/0x270 kernel/locking/spinlock_debug.c:112\n __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:117 [inline]\n _raw_spin_lock_irqsave+0x50/0x70 kernel/locking/spinlock.c:159\n reset_per_cpu_data+0xe6/0x240 [drop_monitor]\n net_dm_cmd_trace+0x43d/0x17a0 [drop_monitor]\n genl_family_rcv_msg_doit+0x22f/0x330 net/netlink/genetlink.c:739\n genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]\n genl_rcv_msg+0x341/0x5a0 net/netlink/genetlink.c:800\n netlink_rcv_skb+0x14d/0x440 net/netlink/af_netlink.c:2497\n genl_rcv+0x29/0x40 net/netlink/genetlink.c:811\n netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]\n netlink_unicast+0x54b/0x800 net/netlink/af_netlink.c:1348\n netlink_sendmsg+0x914/0xe00 net/netlink/af_netlink.c:1916\n sock_sendmsg_nosec net/socket.c:651 [inline]\n __sock_sendmsg+0x157/0x190 net/socket.c:663\n ____sys_sendmsg+0x712/0x870 net/socket.c:2378\n ___sys_sendmsg+0xf8/0x170 net/socket.c:2432\n __sys_sendmsg+0xea/0x1b0 net/socket.c:2461\n do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46\n entry_SYSCALL_64_after_hwframe+0x62/0xc7\nRIP: 0033:0x7f3f9815aee9\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f3f972bf0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 00007f3f9826d050 RCX: 00007f3f9815aee9\nRDX: 0000000020000000 RSI: 0000000020001300 RDI: 0000000000000007\nRBP: 00007f3f981b63bd R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 000000000000006e R14: 00007f3f9826d050 R15: 00007ffe01ee6768\n\nIf drop_monitor is built as a kernel module, syzkaller may have time\nto send a netlink NET_DM_CMD_START message during the module loading.\nThis will call the net_dm_monitor_start() function that uses\na spinlock that has not yet been initialized.\n\nTo fix this, let's place resource initialization above the registration\nof a generic netlink family.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with Syzkaller." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/core/drop_monitor.c" ], "versions": [ { "version": "9a8afc8d3962f3ed26fd6b56db34133860ed1e72", "lessThan": "6e9e0f224ffd8b819da3ea247dda404795fdd182", "status": "affected", "versionType": "git" }, { "version": "9a8afc8d3962f3ed26fd6b56db34133860ed1e72", "lessThan": "29f9cdcab3d96d5207a5c92b52c40ad75e5915d8", "status": "affected", "versionType": "git" }, { "version": "9a8afc8d3962f3ed26fd6b56db34133860ed1e72", "lessThan": "872c7c7e57a746046796ddfead529c9d37b9f6b4", "status": "affected", "versionType": "git" }, { "version": "9a8afc8d3962f3ed26fd6b56db34133860ed1e72", "lessThan": "fcfc00bfec7bb6661074cb21356d05a4c9470a3c", "status": "affected", "versionType": "git" }, { "version": "9a8afc8d3962f3ed26fd6b56db34133860ed1e72", "lessThan": "0efa6c42f81c60d8f72ba7f5ed8d4fec8c526282", "status": "affected", "versionType": "git" }, { "version": "9a8afc8d3962f3ed26fd6b56db34133860ed1e72", "lessThan": "b7859e8643e75619b2705b4fcac93ffd94d72b4a", "status": "affected", "versionType": "git" }, { "version": "9a8afc8d3962f3ed26fd6b56db34133860ed1e72", "lessThan": "219a47d0e6195bd202f22855e35f25bd15bc4d58", "status": "affected", "versionType": "git" }, { "version": "9a8afc8d3962f3ed26fd6b56db34133860ed1e72", "lessThan": "07b598c0e6f06a0f254c88dafb4ad50f8a8c6eea", "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/core/drop_monitor.c" ], "versions": [ { "version": "2.6.30", "status": "affected" }, { "version": "0", "lessThan": "2.6.30", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.291", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.235", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.179", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.130", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.80", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.17", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13.5", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.14", "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": "2.6.30", "versionEndExcluding": "5.4.291" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "5.10.235" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "5.15.179" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.1.130" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.6.80" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.12.17" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.13.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.14" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/6e9e0f224ffd8b819da3ea247dda404795fdd182" }, { "url": "https://git.kernel.org/stable/c/29f9cdcab3d96d5207a5c92b52c40ad75e5915d8" }, { "url": "https://git.kernel.org/stable/c/872c7c7e57a746046796ddfead529c9d37b9f6b4" }, { "url": "https://git.kernel.org/stable/c/fcfc00bfec7bb6661074cb21356d05a4c9470a3c" }, { "url": "https://git.kernel.org/stable/c/0efa6c42f81c60d8f72ba7f5ed8d4fec8c526282" }, { "url": "https://git.kernel.org/stable/c/b7859e8643e75619b2705b4fcac93ffd94d72b4a" }, { "url": "https://git.kernel.org/stable/c/219a47d0e6195bd202f22855e35f25bd15bc4d58" }, { "url": "https://git.kernel.org/stable/c/07b598c0e6f06a0f254c88dafb4ad50f8a8c6eea" } ], "title": "drop_monitor: fix incorrect initialization order", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2025-21862", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T19:25:42.627398Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-908", "description": "CWE-908 Use of Uninitialized Resource" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:26:37.640Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:38:19.222Z" } }, { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-07-14T12:40:19.995Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html" }, { "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html" } ] } ] } }