CVE-2024-49980

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-49980", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T12:17:06.052Z", "datePublished": "2024-10-21T18:02:26.494Z", "dateUpdated": "2026-05-11T20:43:15.218Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:43:15.218Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvrf: revert \"vrf: Remove unnecessary RCU-bh critical section\"\n\nThis reverts commit 504fc6f4f7f681d2a03aa5f68aad549d90eab853.\n\ndev_queue_xmit_nit is expected to be called with BH disabled.\n__dev_queue_xmit has the following:\n\n /* Disable soft irqs for various locks below. Also\n * stops preemption for RCU.\n */\n rcu_read_lock_bh();\n\nVRF must follow this invariant. The referenced commit removed this\nprotection. Which triggered a lockdep warning:\n\n\t================================\n\tWARNING: inconsistent lock state\n\t6.11.0 #1 Tainted: G W\n\t--------------------------------\n\tinconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.\n\tbtserver/134819 [HC0[0]:SC0[0]:HE1:SE1] takes:\n\tffff8882da30c118 (rlock-AF_PACKET){+.?.}-{2:2}, at: tpacket_rcv+0x863/0x3b30\n\t{IN-SOFTIRQ-W} state was registered at:\n\t lock_acquire+0x19a/0x4f0\n\t _raw_spin_lock+0x27/0x40\n\t packet_rcv+0xa33/0x1320\n\t __netif_receive_skb_core.constprop.0+0xcb0/0x3a90\n\t __netif_receive_skb_list_core+0x2c9/0x890\n\t netif_receive_skb_list_internal+0x610/0xcc0\n [...]\n\n\tother info that might help us debug this:\n\t Possible unsafe locking scenario:\n\n\t CPU0\n\t ----\n\t lock(rlock-AF_PACKET);\n\t <Interrupt>\n\t lock(rlock-AF_PACKET);\n\n\t *** DEADLOCK ***\n\n\tCall Trace:\n\t <TASK>\n\t dump_stack_lvl+0x73/0xa0\n\t mark_lock+0x102e/0x16b0\n\t __lock_acquire+0x9ae/0x6170\n\t lock_acquire+0x19a/0x4f0\n\t _raw_spin_lock+0x27/0x40\n\t tpacket_rcv+0x863/0x3b30\n\t dev_queue_xmit_nit+0x709/0xa40\n\t vrf_finish_direct+0x26e/0x340 [vrf]\n\t vrf_l3_out+0x5f4/0xe80 [vrf]\n\t __ip_local_out+0x51e/0x7a0\n [...]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/vrf.c"], "versions": [{"version": "504fc6f4f7f681d2a03aa5f68aad549d90eab853", "lessThan": "718a752bd746b3f4dd62516bb437baf73d548415", "status": "affected", "versionType": "git"}, {"version": "504fc6f4f7f681d2a03aa5f68aad549d90eab853", "lessThan": "8c9381b3138246d46536db93ed696832abd70204", "status": "affected", "versionType": "git"}, {"version": "504fc6f4f7f681d2a03aa5f68aad549d90eab853", "lessThan": "e61f8c4d179b2ffc0d3b7f821c3734be738643d0", "status": "affected", "versionType": "git"}, {"version": "504fc6f4f7f681d2a03aa5f68aad549d90eab853", "lessThan": "b04c4d9eb4f25b950b33218e33b04c94e7445e51", "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/net/vrf.c"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.55", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.14", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.3", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12", "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": "6.6", "versionEndExcluding": "6.6.55"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.10.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.11.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/718a752bd746b3f4dd62516bb437baf73d548415"}, {"url": "https://git.kernel.org/stable/c/8c9381b3138246d46536db93ed696832abd70204"}, {"url": "https://git.kernel.org/stable/c/e61f8c4d179b2ffc0d3b7f821c3734be738643d0"}, {"url": "https://git.kernel.org/stable/c/b04c4d9eb4f25b950b33218e33b04c94e7445e51"}], "title": "vrf: revert \"vrf: Remove unnecessary RCU-bh critical section\"", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-49980", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-22T13:32:37.764586Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:38:44.524Z"}}]}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/vrf.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "718a752bd746b3f4dd62516bb437baf73d548415", "status": "affected", "version": "504fc6f4f7f681d2a03aa5f68aad549d90eab853", "versionType": "git"}, {"lessThan": "8c9381b3138246d46536db93ed696832abd70204", "status": "affected", "version": "504fc6f4f7f681d2a03aa5f68aad549d90eab853", "versionType": "git"}, {"lessThan": "e61f8c4d179b2ffc0d3b7f821c3734be738643d0", "status": "affected", "version": "504fc6f4f7f681d2a03aa5f68aad549d90eab853", "versionType": "git"}, {"lessThan": "b04c4d9eb4f25b950b33218e33b04c94e7445e51", "status": "affected", "version": "504fc6f4f7f681d2a03aa5f68aad549d90eab853", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/vrf.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.6"}, {"lessThan": "6.6", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.55", "versionType": "semver"}, {"lessThanOrEqual": "6.10.*", "status": "unaffected", "version": "6.10.14", "versionType": "semver"}, {"lessThanOrEqual": "6.11.*", "status": "unaffected", "version": "6.11.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.12", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5F23DA31-E148-44C0-BE2A-2BF42A564DC7", "versionEndExcluding": "6.6.55", "versionStartIncluding": "6.6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4C16BCE0-FFA0-4599-BE0A-1FD65101C021", "versionEndExcluding": "6.10.14", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "54D9C704-D679-41A7-9C40-10A6B1E7FFE9", "versionEndExcluding": "6.11.3", "versionStartIncluding": "6.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvrf: revert \"vrf: Remove unnecessary RCU-bh critical section\"\n\nThis reverts commit 504fc6f4f7f681d2a03aa5f68aad549d90eab853.\n\ndev_queue_xmit_nit is expected to be called with BH disabled.\n__dev_queue_xmit has the following:\n\n /* Disable soft irqs for various locks below. Also\n * stops preemption for RCU.\n */\n rcu_read_lock_bh();\n\nVRF must follow this invariant. The referenced commit removed this\nprotection. Which triggered a lockdep warning:\n\n\t================================\n\tWARNING: inconsistent lock state\n\t6.11.0 #1 Tainted: G W\n\t--------------------------------\n\tinconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.\n\tbtserver/134819 [HC0[0]:SC0[0]:HE1:SE1] takes:\n\tffff8882da30c118 (rlock-AF_PACKET){+.?.}-{2:2}, at: tpacket_rcv+0x863/0x3b30\n\t{IN-SOFTIRQ-W} state was registered at:\n\t lock_acquire+0x19a/0x4f0\n\t _raw_spin_lock+0x27/0x40\n\t packet_rcv+0xa33/0x1320\n\t __netif_receive_skb_core.constprop.0+0xcb0/0x3a90\n\t __netif_receive_skb_list_core+0x2c9/0x890\n\t netif_receive_skb_list_internal+0x610/0xcc0\n [...]\n\n\tother info that might help us debug this:\n\t Possible unsafe locking scenario:\n\n\t CPU0\n\t ----\n\t lock(rlock-AF_PACKET);\n\t <Interrupt>\n\t lock(rlock-AF_PACKET);\n\n\t *** DEADLOCK ***\n\n\tCall Trace:\n\t <TASK>\n\t dump_stack_lvl+0x73/0xa0\n\t mark_lock+0x102e/0x16b0\n\t __lock_acquire+0x9ae/0x6170\n\t lock_acquire+0x19a/0x4f0\n\t _raw_spin_lock+0x27/0x40\n\t tpacket_rcv+0x863/0x3b30\n\t dev_queue_xmit_nit+0x709/0xa40\n\t vrf_finish_direct+0x26e/0x340 [vrf]\n\t vrf_l3_out+0x5f4/0xe80 [vrf]\n\t __ip_local_out+0x51e/0x7a0\n [...]"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vrf: revert \"vrf: Remove unexpected RCU-bh critical section\" Esto revierte el commit 504fc6f4f7f681d2a03aa5f68aad549d90eab853. Se espera que dev_queue_xmit_nit se llame con BH deshabilitado. __dev_queue_xmit tiene lo siguiente: /* Deshabilitar irqs suaves para varios bloqueos a continuaci\u00f3n. Tambi\u00e9n * detiene la preempci\u00f3n para RCU. */ rcu_read_lock_bh(); VRF debe seguir esta invariante. el commit a la que se hace referencia elimin\u00f3 esta protecci\u00f3n. Lo que activ\u00f3 una advertencia de lockdep: ================================= ADVERTENCIA: estado de bloqueo inconsistente 6.11.0 #1 Tainted: GW -------------------------------- uso inconsistente de {IN-SOFTIRQ-W} -&gt; {SOFTIRQ-ON-W}. btserver/134819 [HC0[0]:SC0[0]:HE1:SE1] toma: ffff8882da30c118 (rlock-AF_PACKET){+.?.}-{2:2}, en: tpacket_rcv+0x863/0x3b30 {IN-SOFTIRQ-W} el estado se registr\u00f3 en: lock_acquire+0x19a/0x4f0 _raw_spin_lock+0x27/0x40 packet_rcv+0xa33/0x1320 __netif_receive_skb_core.constprop.0+0xcb0/0x3a90 __netif_receive_skb_list_core+0x2c9/0x890 netif_receive_skb_list_internal+0x610/0xcc0 [...] otra informaci\u00f3n que podr\u00eda ayudar Depuremos esto: Posible escenario de bloqueo inseguro: CPU0 ---- lock(rlock-AF_PACKET); lock(rlock-AF_PACKET); *** BLOQUEO INTERMEDIO *** Seguimiento de llamadas: dump_stack_lvl+0x73/0xa0 mark_lock+0x102e/0x16b0 __lock_acquire+0x9ae/0x6170 lock_acquire+0x19a/0x4f0 _raw_spin_lock+0x27/0x40 tpacket_rcv+0x863/0x3b30 dev_queue_xmit_nit+0x709/0xa40 vrf_finish_direct+0x26e/0x340 [vrf] vrf_l3_out+0x5f4/0xe80 [vrf] __ip_local_out+0x51e/0x7a0 [...]"}], "id": "CVE-2024-49980", "lastModified": "2026-06-17T08:00:52.323", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-49980", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-10-22T13:32:37.764586Z", "version": "2.0.3"}}]}, "published": "2024-10-21T18:15:18.613", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/718a752bd746b3f4dd62516bb437baf73d548415"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8c9381b3138246d46536db93ed696832abd70204"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b04c4d9eb4f25b950b33218e33b04c94e7445e51"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e61f8c4d179b2ffc0d3b7f821c3734be738643d0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: vrf: revert \"vrf: Remove unnecessary RCU-bh critical section\"", "id": "2320522", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320522"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-667", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nvrf: revert \"vrf: Remove unnecessary RCU-bh critical section\"\nThis reverts commit 504fc6f4f7f681d2a03aa5f68aad549d90eab853.\ndev_queue_xmit_nit is expected to be called with BH disabled.\n__dev_queue_xmit has the following:\n/* Disable soft irqs for various locks below. Also\n* stops preemption for RCU.\n*/\nrcu_read_lock_bh();\nVRF must follow this invariant. The referenced commit removed this\nprotection. Which triggered a lockdep warning:\n================================\nWARNING: inconsistent lock state\n6.11.0 #1 Tainted: G W\n--------------------------------\ninconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.\nbtserver/134819 [HC0[0]:SC0[0]:HE1:SE1] takes:\nffff8882da30c118 (rlock-AF_PACKET){+.?.}-{2:2}, at: tpacket_rcv+0x863/0x3b30\n{IN-SOFTIRQ-W} state was registered at:\nlock_acquire+0x19a/0x4f0\n_raw_spin_lock+0x27/0x40\npacket_rcv+0xa33/0x1320\n__netif_receive_skb_core.constprop.0+0xcb0/0x3a90\n__netif_receive_skb_list_core+0x2c9/0x890\nnetif_receive_skb_list_internal+0x610/0xcc0\n[...]\nother info that might help us debug this:\nPossible unsafe locking scenario:\nCPU0\n----\nlock(rlock-AF_PACKET);\n<Interrupt>\nlock(rlock-AF_PACKET);\n*** DEADLOCK ***\nCall Trace:\n<TASK>\ndump_stack_lvl+0x73/0xa0\nmark_lock+0x102e/0x16b0\n__lock_acquire+0x9ae/0x6170\nlock_acquire+0x19a/0x4f0\n_raw_spin_lock+0x27/0x40\ntpacket_rcv+0x863/0x3b30\ndev_queue_xmit_nit+0x709/0xa40\nvrf_finish_direct+0x26e/0x340 [vrf]\nvrf_l3_out+0x5f4/0xe80 [vrf]\n__ip_local_out+0x51e/0x7a0\n[...]"], "name": "CVE-2024-49980", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not 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": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-49980\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-49980\nhttps://lore.kernel.org/linux-cve-announce/2024102135-CVE-2024-49980-da73@gregkh/T"], "threat_severity": "Moderate"}

{}