{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-39833", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.140Z", "datePublished": "2025-09-16T13:08:50.192Z", "dateUpdated": "2026-09-02T12:49:22.578Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-02T12:49:22.578Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmISDN: hfcpci: Fix warning when deleting uninitialized timer\n\nWith CONFIG_DEBUG_OBJECTS_TIMERS unloading hfcpci module leads\nto the following splat:\n\n[ 250.215892] ODEBUG: assert_init not available (active state 0) object: ffffffffc01a3dc0 object type: timer_list hint: 0x0\n[ 250.217520] WARNING: CPU: 0 PID: 233 at lib/debugobjects.c:612 debug_print_object+0x1b6/0x2c0\n[ 250.218775] Modules linked in: hfcpci(-) mISDN_core\n[ 250.219537] CPU: 0 UID: 0 PID: 233 Comm: rmmod Not tainted 6.17.0-rc2-g6f713187ac98 #2 PREEMPT(voluntary)\n[ 250.220940] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[ 250.222377] RIP: 0010:debug_print_object+0x1b6/0x2c0\n[ 250.223131] Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4f 41 56 48 8b 14 dd a0 4e 01 9f 48 89 ee 48 c7 c7 20 46 01 9f e8 cb 84d\n[ 250.225805] RSP: 0018:ffff888015ea7c08 EFLAGS: 00010286\n[ 250.226608] RAX: 0000000000000000 RBX: 0000000000000005 RCX: ffffffff9be93a95\n[ 250.227708] RDX: 1ffff1100d945138 RSI: 0000000000000008 RDI: ffff88806ca289c0\n[ 250.228993] RBP: ffffffff9f014a00 R08: 0000000000000001 R09: ffffed1002bd4f39\n[ 250.230043] R10: ffff888015ea79cf R11: 0000000000000001 R12: 0000000000000001\n[ 250.231185] R13: ffffffff9eea0520 R14: 0000000000000000 R15: ffff888015ea7cc8\n[ 250.232454] FS: 00007f3208f01540(0000) GS:ffff8880caf5a000(0000) knlGS:0000000000000000\n[ 250.233851] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 250.234856] CR2: 00007f32090a7421 CR3: 0000000004d63000 CR4: 00000000000006f0\n[ 250.236117] Call Trace:\n[ 250.236599] \n[ 250.236967] ? trace_irq_enable.constprop.0+0xd4/0x130\n[ 250.237920] debug_object_assert_init+0x1f6/0x310\n[ 250.238762] ? __pfx_debug_object_assert_init+0x10/0x10\n[ 250.239658] ? __lock_acquire+0xdea/0x1c70\n[ 250.240369] __try_to_del_timer_sync+0x69/0x140\n[ 250.241172] ? __pfx___try_to_del_timer_sync+0x10/0x10\n[ 250.242058] ? __timer_delete_sync+0xc6/0x120\n[ 250.242842] ? lock_acquire+0x30/0x80\n[ 250.243474] ? __timer_delete_sync+0xc6/0x120\n[ 250.244262] __timer_delete_sync+0x98/0x120\n[ 250.245015] HFC_cleanup+0x10/0x20 [hfcpci]\n[ 250.245704] __do_sys_delete_module+0x348/0x510\n[ 250.246461] ? __pfx___do_sys_delete_module+0x10/0x10\n[ 250.247338] do_syscall_64+0xc1/0x360\n[ 250.247924] entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFix this by initializing hfc_tl timer with DEFINE_TIMER macro.\nAlso, use mod_timer instead of manual timeout update." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/isdn/hardware/mISDN/hfcpci.c" ], "versions": [ { "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "lessThan": "d8be1288e398ccda2dc590fdaa0551f192f6a1c6", "status": "affected", "versionType": "git" }, { "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "lessThan": "75194165e65018c581b128379b91b0b2d64638d9", "status": "affected", "versionType": "git" }, { "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "lessThan": "544ffd62ddd093c71150e4d4c542f98153fb8e46", "status": "affected", "versionType": "git" }, { "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "lessThan": "43fc5da8133badf17f5df250ba03b9d882254845", "status": "affected", "versionType": "git" }, { "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "lessThan": "97766512a9951b9fd6fc97f1b93211642bb0b220", "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/isdn/hardware/mISDN/hfcpci.c" ], "versions": [ { "version": "2.6.29", "status": "affected" }, { "version": "0", "lessThan": "2.6.29", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.187", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.156", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.108", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.16.5", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.17", "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": "2.6.29", "versionEndExcluding": "6.1.187" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.29", "versionEndExcluding": "6.6.156" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.29", "versionEndExcluding": "6.12.108" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.29", "versionEndExcluding": "6.16.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.29", "versionEndExcluding": "6.17" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/d8be1288e398ccda2dc590fdaa0551f192f6a1c6" }, { "url": "https://git.kernel.org/stable/c/75194165e65018c581b128379b91b0b2d64638d9" }, { "url": "https://git.kernel.org/stable/c/544ffd62ddd093c71150e4d4c542f98153fb8e46" }, { "url": "https://git.kernel.org/stable/c/43fc5da8133badf17f5df250ba03b9d882254845" }, { "url": "https://git.kernel.org/stable/c/97766512a9951b9fd6fc97f1b93211642bb0b220" } ], "title": "mISDN: hfcpci: Fix warning when deleting uninitialized timer", "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-2025-39833", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2026-01-14T18:18:25.755383Z" } } } ], "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": "2026-01-14T18:22:57.060Z" } } ] } }