{"api_version":"1","generated_at":"2026-11-11T04:58:58+00:00","cve":"CVE-2025-37824","urls":{"html":"https://cve.report/CVE-2025-37824","api":"https://cve.report/api/cve/CVE-2025-37824.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-37824","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-37824"},"summary":{"title":"tipc: fix NULL pointer dereference in tipc_mon_reinit_self()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix NULL pointer dereference in tipc_mon_reinit_self()\n\nsyzbot reported:\n\ntipc: Node number set to 1055423674\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 3 UID: 0 PID: 6017 Comm: kworker/3:5 Not tainted 6.15.0-rc1-syzkaller-00246-g900241a5cc15 #0 PREEMPT(full)\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\nWorkqueue: events tipc_net_finalize_work\nRIP: 0010:tipc_mon_reinit_self+0x11c/0x210 net/tipc/monitor.c:719\n...\nRSP: 0018:ffffc9000356fb68 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000003ee87cba\nRDX: 0000000000000000 RSI: ffffffff8dbc56a7 RDI: ffff88804c2cc010\nRBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000007\nR13: fffffbfff2111097 R14: ffff88804ead8000 R15: ffff88804ead9010\nFS:  0000000000000000(0000) GS:ffff888097ab9000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000f720eb00 CR3: 000000000e182000 CR4: 0000000000352ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n <TASK>\n tipc_net_finalize+0x10b/0x180 net/tipc/net.c:140\n process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238\n process_scheduled_works kernel/workqueue.c:3319 [inline]\n worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400\n kthread+0x3c2/0x780 kernel/kthread.c:464\n ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245\n </TASK>\n...\nRIP: 0010:tipc_mon_reinit_self+0x11c/0x210 net/tipc/monitor.c:719\n...\nRSP: 0018:ffffc9000356fb68 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000003ee87cba\nRDX: 0000000000000000 RSI: ffffffff8dbc56a7 RDI: ffff88804c2cc010\nRBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000007\nR13: fffffbfff2111097 R14: ffff88804ead8000 R15: ffff88804ead9010\nFS:  0000000000000000(0000) GS:ffff888097ab9000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000f720eb00 CR3: 000000000e182000 CR4: 0000000000352ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n\nThere is a racing condition between workqueue created when enabling\nbearer and another thread created when disabling bearer right after\nthat as follow:\n\nenabling_bearer                          | disabling_bearer\n---------------                          | ----------------\ntipc_disc_timeout()                      |\n{                                        | bearer_disable()\n ...                                     | {\n schedule_work(&tn->work);               |  tipc_mon_delete()\n ...                                     |  {\n}                                        |   ...\n                                         |   write_lock_bh(&mon->lock);\n                                         |   mon->self = NULL;\n                                         |   write_unlock_bh(&mon->lock);\n                                         |   ...\n                                         |  }\ntipc_net_finalize_work()                 | }\n{                                        |\n ...                                     |\n tipc_net_finalize()                     |\n {                                       |\n  ...                                    |\n  tipc_mon_reinit_self()                 |\n  {                                      |\n   ...                                   |\n   write_lock_bh(&mon->lock);            |\n   mon->self->addr = tipc_own_addr(net); |\n   write_unlock_bh(&mon->lock);          |\n   ...             \n---truncated---","state":"PUBLISHED","assigner":"Linux","published_at":"2025-05-08 07:15:53","updated_at":"2026-11-05 21:17:53"},"problem_types":["CWE-476"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html","name":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dd6cb0a8575b00fbd503e96903184125176f4fa3","name":"https://git.kernel.org/stable/c/dd6cb0a8575b00fbd503e96903184125176f4fa3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5fd464fd24de93d0eca377554bf0ff2548f76f30","name":"https://git.kernel.org/stable/c/5fd464fd24de93d0eca377554bf0ff2548f76f30","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e6613b6d41f4010c4d484cbc7bfca690d8d522a2","name":"https://git.kernel.org/stable/c/e6613b6d41f4010c4d484cbc7bfca690d8d522a2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e79e8e05aa46f90d21023f0ffe6f136ed6a20932","name":"https://git.kernel.org/stable/c/e79e8e05aa46f90d21023f0ffe6f136ed6a20932","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d63527e109e811ef11abb1c2985048fdb528b4cb","name":"https://git.kernel.org/stable/c/d63527e109e811ef11abb1c2985048fdb528b4cb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a3df56010403b2cd26388096ebccf959d23c4dcc","name":"https://git.kernel.org/stable/c/a3df56010403b2cd26388096ebccf959d23c4dcc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4d5e1e2d3e9d70beff7beab44fd6ce91405a405e","name":"https://git.kernel.org/stable/c/4d5e1e2d3e9d70beff7beab44fd6ce91405a405e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html","name":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0ceef62a328ce1288598c9242576292671f21e96","name":"https://git.kernel.org/stable/c/0ceef62a328ce1288598c9242576292671f21e96","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-37824","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-37824","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 28845c28f842e9e55e75b2c116bff714bb039055 a3df56010403b2cd26388096ebccf959d23c4dcc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 46cb01eeeb86fca6afe24dda1167b0cb95424e29 e6613b6d41f4010c4d484cbc7bfca690d8d522a2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 46cb01eeeb86fca6afe24dda1167b0cb95424e29 5fd464fd24de93d0eca377554bf0ff2548f76f30 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 46cb01eeeb86fca6afe24dda1167b0cb95424e29 e79e8e05aa46f90d21023f0ffe6f136ed6a20932 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 46cb01eeeb86fca6afe24dda1167b0cb95424e29 dd6cb0a8575b00fbd503e96903184125176f4fa3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 46cb01eeeb86fca6afe24dda1167b0cb95424e29 0ceef62a328ce1288598c9242576292671f21e96 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 46cb01eeeb86fca6afe24dda1167b0cb95424e29 4d5e1e2d3e9d70beff7beab44fd6ce91405a405e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 46cb01eeeb86fca6afe24dda1167b0cb95424e29 d63527e109e811ef11abb1c2985048fdb528b4cb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 295c9b554f6dfcd2d368fae6e6fa22ee5b79c123 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.4.15 5.4.293 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.19.99 4.20 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.5","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.4.293 5.4.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.237 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.181 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.136 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.89 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.26 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.14.5 6.14.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2025","cve_id":"37824","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2025-11-03T19:55:59.094Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"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"}],"title":"CVE Program Container"},{"metrics":[{"other":{"content":{"id":"CVE-2025-37824","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-11-05T20:41:23.531716Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-11-05T20:41:55.257Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/tipc/monitor.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a3df56010403b2cd26388096ebccf959d23c4dcc","status":"affected","version":"28845c28f842e9e55e75b2c116bff714bb039055","versionType":"git"},{"lessThan":"e6613b6d41f4010c4d484cbc7bfca690d8d522a2","status":"affected","version":"46cb01eeeb86fca6afe24dda1167b0cb95424e29","versionType":"git"},{"lessThan":"5fd464fd24de93d0eca377554bf0ff2548f76f30","status":"affected","version":"46cb01eeeb86fca6afe24dda1167b0cb95424e29","versionType":"git"},{"lessThan":"e79e8e05aa46f90d21023f0ffe6f136ed6a20932","status":"affected","version":"46cb01eeeb86fca6afe24dda1167b0cb95424e29","versionType":"git"},{"lessThan":"dd6cb0a8575b00fbd503e96903184125176f4fa3","status":"affected","version":"46cb01eeeb86fca6afe24dda1167b0cb95424e29","versionType":"git"},{"lessThan":"0ceef62a328ce1288598c9242576292671f21e96","status":"affected","version":"46cb01eeeb86fca6afe24dda1167b0cb95424e29","versionType":"git"},{"lessThan":"4d5e1e2d3e9d70beff7beab44fd6ce91405a405e","status":"affected","version":"46cb01eeeb86fca6afe24dda1167b0cb95424e29","versionType":"git"},{"lessThan":"d63527e109e811ef11abb1c2985048fdb528b4cb","status":"affected","version":"46cb01eeeb86fca6afe24dda1167b0cb95424e29","versionType":"git"},{"status":"affected","version":"295c9b554f6dfcd2d368fae6e6fa22ee5b79c123","versionType":"git"},{"lessThan":"5.4.293","status":"affected","version":"5.4.15","versionType":"semver"},{"lessThan":"4.20","status":"affected","version":"4.19.99","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/tipc/monitor.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.5"},{"lessThan":"5.5","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.4.*","status":"unaffected","version":"5.4.293","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.237","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.181","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.136","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.89","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.26","versionType":"semver"},{"lessThanOrEqual":"6.14.*","status":"unaffected","version":"6.14.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.15","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.4.293","versionStartIncluding":"5.4.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.237","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.181","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.136","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.89","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.26","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.14.5","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.15","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.99","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix NULL pointer dereference in tipc_mon_reinit_self()\n\nsyzbot reported:\n\ntipc: Node number set to 1055423674\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 3 UID: 0 PID: 6017 Comm: kworker/3:5 Not tainted 6.15.0-rc1-syzkaller-00246-g900241a5cc15 #0 PREEMPT(full)\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\nWorkqueue: events tipc_net_finalize_work\nRIP: 0010:tipc_mon_reinit_self+0x11c/0x210 net/tipc/monitor.c:719\n...\nRSP: 0018:ffffc9000356fb68 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000003ee87cba\nRDX: 0000000000000000 RSI: ffffffff8dbc56a7 RDI: ffff88804c2cc010\nRBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000007\nR13: fffffbfff2111097 R14: ffff88804ead8000 R15: ffff88804ead9010\nFS:  0000000000000000(0000) GS:ffff888097ab9000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000f720eb00 CR3: 000000000e182000 CR4: 0000000000352ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n <TASK>\n tipc_net_finalize+0x10b/0x180 net/tipc/net.c:140\n process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238\n process_scheduled_works kernel/workqueue.c:3319 [inline]\n worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400\n kthread+0x3c2/0x780 kernel/kthread.c:464\n ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245\n </TASK>\n...\nRIP: 0010:tipc_mon_reinit_self+0x11c/0x210 net/tipc/monitor.c:719\n...\nRSP: 0018:ffffc9000356fb68 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000003ee87cba\nRDX: 0000000000000000 RSI: ffffffff8dbc56a7 RDI: ffff88804c2cc010\nRBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000007\nR13: fffffbfff2111097 R14: ffff88804ead8000 R15: ffff88804ead9010\nFS:  0000000000000000(0000) GS:ffff888097ab9000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000f720eb00 CR3: 000000000e182000 CR4: 0000000000352ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n\nThere is a racing condition between workqueue created when enabling\nbearer and another thread created when disabling bearer right after\nthat as follow:\n\nenabling_bearer                          | disabling_bearer\n---------------                          | ----------------\ntipc_disc_timeout()                      |\n{                                        | bearer_disable()\n ...                                     | {\n schedule_work(&tn->work);               |  tipc_mon_delete()\n ...                                     |  {\n}                                        |   ...\n                                         |   write_lock_bh(&mon->lock);\n                                         |   mon->self = NULL;\n                                         |   write_unlock_bh(&mon->lock);\n                                         |   ...\n                                         |  }\ntipc_net_finalize_work()                 | }\n{                                        |\n ...                                     |\n tipc_net_finalize()                     |\n {                                       |\n  ...                                    |\n  tipc_mon_reinit_self()                 |\n  {                                      |\n   ...                                   |\n   write_lock_bh(&mon->lock);            |\n   mon->self->addr = tipc_own_addr(net); |\n   write_unlock_bh(&mon->lock);          |\n   ...             \n---truncated---"}],"providerMetadata":{"dateUpdated":"2026-05-23T15:58:18.718Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/a3df56010403b2cd26388096ebccf959d23c4dcc"},{"url":"https://git.kernel.org/stable/c/e6613b6d41f4010c4d484cbc7bfca690d8d522a2"},{"url":"https://git.kernel.org/stable/c/5fd464fd24de93d0eca377554bf0ff2548f76f30"},{"url":"https://git.kernel.org/stable/c/e79e8e05aa46f90d21023f0ffe6f136ed6a20932"},{"url":"https://git.kernel.org/stable/c/dd6cb0a8575b00fbd503e96903184125176f4fa3"},{"url":"https://git.kernel.org/stable/c/0ceef62a328ce1288598c9242576292671f21e96"},{"url":"https://git.kernel.org/stable/c/4d5e1e2d3e9d70beff7beab44fd6ce91405a405e"},{"url":"https://git.kernel.org/stable/c/d63527e109e811ef11abb1c2985048fdb528b4cb"}],"title":"tipc: fix NULL pointer dereference in tipc_mon_reinit_self()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2025-37824","datePublished":"2025-05-08T06:26:17.476Z","dateReserved":"2025-04-16T04:51:23.950Z","dateUpdated":"2026-11-05T20:41:55.257Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-05-08 07:15:53","lastModifiedDate":"2026-11-05 21:17:53","problem_types":["CWE-476"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-11-05T20:41:23.531716Z","id":"CVE-2025-37824","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.99","versionEndExcluding":"4.20","matchCriteriaId":"97340910-B0B6-42CC-B4FA-E277DFB61C71"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.15","versionEndExcluding":"5.4.293","matchCriteriaId":"710559FB-9CEA-4EB6-8A92-3F323281D597"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.237","matchCriteriaId":"0710B81E-E2FA-4E15-8F68-D297EBB4D50D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.181","matchCriteriaId":"12331C9E-F601-4EFC-899E-369F98DCC70B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.136","matchCriteriaId":"27735C1B-DDFC-4860-8952-1D01025F9D4C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.89","matchCriteriaId":"D79CE030-3114-45E0-B52B-C77781BCB587"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.26","matchCriteriaId":"22F52099-F422-4D19-8283-45F9F9BF4392"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.14.5","matchCriteriaId":"6B25CA7E-4CD0-46DB-B4EF-13A3516071FB"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*","matchCriteriaId":"8D465631-2980-487A-8E65-40AE2B9F8ED1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*","matchCriteriaId":"4C9D071F-B28E-46EC-AC61-22B913390211"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*","matchCriteriaId":"13FC0DDE-E513-465E-9E81-515702D49B74"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","matchCriteriaId":"FA6FEEC2-9F11-4643-8827-749718254FED"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"37824","Ordinal":"1","Title":"tipc: fix NULL pointer dereference in tipc_mon_reinit_self()","CVE":"CVE-2025-37824","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"37824","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix NULL pointer dereference in tipc_mon_reinit_self()\n\nsyzbot reported:\n\ntipc: Node number set to 1055423674\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 3 UID: 0 PID: 6017 Comm: kworker/3:5 Not tainted 6.15.0-rc1-syzkaller-00246-g900241a5cc15 #0 PREEMPT(full)\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\nWorkqueue: events tipc_net_finalize_work\nRIP: 0010:tipc_mon_reinit_self+0x11c/0x210 net/tipc/monitor.c:719\n...\nRSP: 0018:ffffc9000356fb68 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000003ee87cba\nRDX: 0000000000000000 RSI: ffffffff8dbc56a7 RDI: ffff88804c2cc010\nRBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000007\nR13: fffffbfff2111097 R14: ffff88804ead8000 R15: ffff88804ead9010\nFS:  0000000000000000(0000) GS:ffff888097ab9000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000f720eb00 CR3: 000000000e182000 CR4: 0000000000352ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n <TASK>\n tipc_net_finalize+0x10b/0x180 net/tipc/net.c:140\n process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238\n process_scheduled_works kernel/workqueue.c:3319 [inline]\n worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400\n kthread+0x3c2/0x780 kernel/kthread.c:464\n ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245\n </TASK>\n...\nRIP: 0010:tipc_mon_reinit_self+0x11c/0x210 net/tipc/monitor.c:719\n...\nRSP: 0018:ffffc9000356fb68 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000003ee87cba\nRDX: 0000000000000000 RSI: ffffffff8dbc56a7 RDI: ffff88804c2cc010\nRBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000007\nR13: fffffbfff2111097 R14: ffff88804ead8000 R15: ffff88804ead9010\nFS:  0000000000000000(0000) GS:ffff888097ab9000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000f720eb00 CR3: 000000000e182000 CR4: 0000000000352ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n\nThere is a racing condition between workqueue created when enabling\nbearer and another thread created when disabling bearer right after\nthat as follow:\n\nenabling_bearer                          | disabling_bearer\n---------------                          | ----------------\ntipc_disc_timeout()                      |\n{                                        | bearer_disable()\n ...                                     | {\n schedule_work(&tn->work);               |  tipc_mon_delete()\n ...                                     |  {\n}                                        |   ...\n                                         |   write_lock_bh(&mon->lock);\n                                         |   mon->self = NULL;\n                                         |   write_unlock_bh(&mon->lock);\n                                         |   ...\n                                         |  }\ntipc_net_finalize_work()                 | }\n{                                        |\n ...                                     |\n tipc_net_finalize()                     |\n {                                       |\n  ...                                    |\n  tipc_mon_reinit_self()                 |\n  {                                      |\n   ...                                   |\n   write_lock_bh(&mon->lock);            |\n   mon->self->addr = tipc_own_addr(net); |\n   write_unlock_bh(&mon->lock);          |\n   ...             \n---truncated---","Type":"Description","Title":"tipc: fix NULL pointer dereference in tipc_mon_reinit_self()"}]}}}