CVE-2025-39833

{"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] <TASK>\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"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "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"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T18:18:21.671Z"}}], "cna": {"title": "mISDN: hfcpci: Fix warning when deleting uninitialized timer", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "lessThan": "d8be1288e398ccda2dc590fdaa0551f192f6a1c6", "versionType": "git"}, {"status": "affected", "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "lessThan": "75194165e65018c581b128379b91b0b2d64638d9", "versionType": "git"}, {"status": "affected", "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "lessThan": "544ffd62ddd093c71150e4d4c542f98153fb8e46", "versionType": "git"}, {"status": "affected", "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "lessThan": "43fc5da8133badf17f5df250ba03b9d882254845", "versionType": "git"}, {"status": "affected", "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "lessThan": "97766512a9951b9fd6fc97f1b93211642bb0b220", "versionType": "git"}], "programFiles": ["drivers/isdn/hardware/mISDN/hfcpci.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.29"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.29", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.187", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.156", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.108", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.16.5", "versionType": "semver", "lessThanOrEqual": "6.16.*"}, {"status": "unaffected", "version": "6.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/isdn/hardware/mISDN/hfcpci.c"], "defaultStatus": "affected"}], "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"}], "x_generator": {"engine": "bippy-1.2.0"}, "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] <TASK>\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."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.187", "versionStartIncluding": "2.6.29"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.156", "versionStartIncluding": "2.6.29"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.108", "versionStartIncluding": "2.6.29"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.16.5", "versionStartIncluding": "2.6.29"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.17", "versionStartIncluding": "2.6.29"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-02T12:49:22.578Z"}}}, "cveMetadata": {"cveId": "CVE-2025-39833", "state": "PUBLISHED", "dateUpdated": "2026-09-02T12:49:22.578Z", "dateReserved": "2025-04-16T07:20:57.140Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-09-16T13:08:50.192Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/isdn/hardware/mISDN/hfcpci.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d8be1288e398ccda2dc590fdaa0551f192f6a1c6", "status": "affected", "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "versionType": "git"}, {"lessThan": "75194165e65018c581b128379b91b0b2d64638d9", "status": "affected", "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "versionType": "git"}, {"lessThan": "544ffd62ddd093c71150e4d4c542f98153fb8e46", "status": "affected", "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "versionType": "git"}, {"lessThan": "43fc5da8133badf17f5df250ba03b9d882254845", "status": "affected", "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "versionType": "git"}, {"lessThan": "97766512a9951b9fd6fc97f1b93211642bb0b220", "status": "affected", "version": "87c5fa1bb42624254a2013cbbc3b170d6017f5d6", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/isdn/hardware/mISDN/hfcpci.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.29"}, {"lessThan": "2.6.29", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.187", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.156", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.108", "versionType": "semver"}, {"lessThanOrEqual": "6.16.*", "status": "unaffected", "version": "6.16.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.17", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E4B3453C-BB0A-4223-B849-93B363CE7D1C", "versionEndExcluding": "6.16.5", "versionStartIncluding": "2.6.29", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*", "matchCriteriaId": "327D22EF-390B-454C-BD31-2ED23C998A1C", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*", "matchCriteriaId": "C730CD9A-D969-4A8E-9522-162AAF7C0EE9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*", "matchCriteriaId": "39982C4B-716E-4B2F-8196-FA301F47807D", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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] <TASK>\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."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmISDN: hfcpci: Solucionar advertencia al eliminar un temporizador no inicializado\n\nCon CONFIG_DEBUG_OBJECTS_TIMERS la descarga del m\u00f3dulo hfcpci lleva al siguiente splat:\n\n[ 250.215892] ODEBUG: assert_init no disponible (estado activo 0) objeto: ffffffffc01a3dc0 tipo de objeto: timer_list pista: 0x0\n[ 250.217520] ADVERTENCIA: CPU: 0 PID: 233 en lib/debugobjects.c:612 debug_print_object+0x1b6/0x2c0\n[ 250.218775] M\u00f3dulos enlazados: hfcpci(-) mISDN_core\n[ 250.219537] CPU: 0 UID: 0 PID: 233 Comm: rmmod No contaminado 6.17.0-rc2-g6f713187ac98 #2 PREEMPT(voluntario)\n[ 250.220940] Nombre del hardware: 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] C\u00f3digo: 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] Traza de llamada:\n[ 250.236599] <TAREA>\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\nSolucione esto inicializando el temporizador hfc_tl con la macro DEFINE_TIMER.\nAdem\u00e1s, use mod_timer en lugar de la actualizaci\u00f3n manual del tiempo de espera."}], "id": "CVE-2025-39833", "lastModified": "2026-10-19T21:10:00.160", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-39833", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-01-14T18:18:25.755383Z", "version": "2.0.3"}}]}, "published": "2025-09-16T14:15:51.580", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/43fc5da8133badf17f5df250ba03b9d882254845"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/544ffd62ddd093c71150e4d4c542f98153fb8e46"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/75194165e65018c581b128379b91b0b2d64638d9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/97766512a9951b9fd6fc97f1b93211642bb0b220"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d8be1288e398ccda2dc590fdaa0551f192f6a1c6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-908"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: mISDN: hfcpci: Fix warning when deleting uninitialized timer", "id": "2395802", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395802"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-39833", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-39833\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-39833\nhttps://lore.kernel.org/linux-cve-announce/2025091657-CVE-2025-39833-c2ef@gregkh/T"], "threat_severity": "Important"}

{"created": "2025-09-17T10:04:34.550792+00:00", "updated": "2025-09-17T10:04:34.550875+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}