CVE-2024-46750

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-46750", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-09-11T15:12:18.267Z", "datePublished": "2024-09-18T07:12:10.484Z", "dateUpdated": "2026-10-15T00:50:41.606Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:38:20.290Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Add missing bridge lock to pci_bus_lock()\n\nOne of the true positives that the cfg_access_lock lockdep effort\nidentified is this sequence:\n\n WARNING: CPU: 14 PID: 1 at drivers/pci/pci.c:4886 pci_bridge_secondary_bus_reset+0x5d/0x70\n RIP: 0010:pci_bridge_secondary_bus_reset+0x5d/0x70\n Call Trace:\n <TASK>\n ? __warn+0x8c/0x190\n ? pci_bridge_secondary_bus_reset+0x5d/0x70\n ? report_bug+0x1f8/0x200\n ? handle_bug+0x3c/0x70\n ? exc_invalid_op+0x18/0x70\n ? asm_exc_invalid_op+0x1a/0x20\n ? pci_bridge_secondary_bus_reset+0x5d/0x70\n pci_reset_bus+0x1d8/0x270\n vmd_probe+0x778/0xa10\n pci_device_probe+0x95/0x120\n\nWhere pci_reset_bus() users are triggering unlocked secondary bus resets.\nIronically pci_bus_reset(), several calls down from pci_reset_bus(), uses\npci_bus_lock() before issuing the reset which locks everything *but* the\nbridge itself.\n\nFor the same motivation as adding:\n\n bridge = pci_upstream_bridge(dev);\n if (bridge)\n pci_dev_lock(bridge);\n\nto pci_reset_function() for the \"bus\" and \"cxl_bus\" reset cases, add\npci_dev_lock() for @bus->self to pci_bus_lock().\n\n[bhelgaas: squash in recursive locking deadlock fix from Keith Busch:\nhttps://lore.kernel.org/r/20240711193650.701834-1-kbusch@meta.com]"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The reset paths are reached only from local interfaces \u2014 the `VFIO_DEVICE_PCI_HOT_RESET` ioctl on an open VFIO device fd, sysfs attributes such as `reset_subordinate`, or driver probe/recovery paths. No remote or adjacent-network data path reaches `pci_bus_lock()`.\nAC:L - The attacker controls both sides of the race: they trigger the bus reset on demand via the VFIO ioctl, and the bridge stays unlocked for the full `msleep(2)` plus up to ~1 s of `pci_bridge_wait_for_secondary_bus()` link polling, so no precise timing or unattainable memory layout is needed.\nPR:L - `VFIO_DEVICE_PCI_HOT_RESET` requires only an open VFIO device fd, which libvirt/QEMU and DPDK deployments routinely hand to an unprivileged user; no root or capability in the init namespace is needed to drive `pci_reset_bus()` repeatedly.\nUI:N - The attacker issues the ioctl (or repeatedly opens/closes the VFIO device) entirely on their own; no victim action is required to reach the unlocked reset.\nS:U - The corruption and any resulting crash stay within the kernel's own security authority \u2014 there is no guest-to-host escape or IOMMU/DMA boundary crossing, and VFIO already requires all bus-affected devices to be in the caller's device set.\nC:H - The bridge's `device_lock` is not held across the sleeping reset, so driver unbind/remove and PM transitions on the bridge run unsynchronized against an in-flight reset that keeps dereferencing `bus->self` and its port-service state, giving a use-after-free class read primitive over freed kernel objects.\nI:H - Without `pci_cfg_access_lock()` on the bridge, concurrent config writes and a parallel `pci_dev_save_and_disable()`/`pci_dev_restore()` on the same bridge interleave with the `PCI_BRIDGE_CONTROL` read-modify-write, corrupting bridge state (bus numbers, MMIO windows, COMMAND, control bits); the same missing `device_lock` makes the driver-model race exploitable for kernel memory corruption.\nA:H - A lost update can leave `PCI_BRIDGE_CTL_BUS_RESET` asserted, permanently removing every device behind the bridge (potentially the root storage or network controller), and the unlocked unbind/remove-versus-reset race produces oopses and hangs; the reset is repeatable at will."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/pci/pci.c"], "versions": [{"version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "0790b89c7e911003b8c50ae50e3ac7645de1fae9", "status": "affected", "versionType": "git"}, {"version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "df77a678c33871a6e4ac5b54a71662f1d702335b", "status": "affected", "versionType": "git"}, {"version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "e2355d513b89a2cb511b4ded0deb426cdb01acd0", "status": "affected", "versionType": "git"}, {"version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945", "status": "affected", "versionType": "git"}, {"version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "7253b4fed46471cc247c6cacefac890a8472c083", "status": "affected", "versionType": "git"}, {"version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "78c6e39fef5c428960aff742149bba302dd46f5a", "status": "affected", "versionType": "git"}, {"version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "81c68e218ab883dfa368460a59b674084c0240da", "status": "affected", "versionType": "git"}, {"version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "a4e772898f8bf2e7e1cf661a12c60a5612c4afab", "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/pci/pci.c"], "versions": [{"version": "3.12", "status": "affected"}, {"version": "0", "lessThan": "3.12", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.322", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.284", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.226", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.167", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.110", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.51", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.10", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11", "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": "3.12", "versionEndExcluding": "4.19.322"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "5.4.284"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "5.10.226"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "5.15.167"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.1.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.6.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.10.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0790b89c7e911003b8c50ae50e3ac7645de1fae9"}, {"url": "https://git.kernel.org/stable/c/df77a678c33871a6e4ac5b54a71662f1d702335b"}, {"url": "https://git.kernel.org/stable/c/e2355d513b89a2cb511b4ded0deb426cdb01acd0"}, {"url": "https://git.kernel.org/stable/c/04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945"}, {"url": "https://git.kernel.org/stable/c/7253b4fed46471cc247c6cacefac890a8472c083"}, {"url": "https://git.kernel.org/stable/c/78c6e39fef5c428960aff742149bba302dd46f5a"}, {"url": "https://git.kernel.org/stable/c/81c68e218ab883dfa368460a59b674084c0240da"}, {"url": "https://git.kernel.org/stable/c/a4e772898f8bf2e7e1cf661a12c60a5612c4afab"}], "title": "PCI: Add missing bridge lock to pci_bus_lock()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-09-29T14:47:52.159037Z", "id": "CVE-2024-46750", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-29T14:48:07.141Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:17:46.292Z"}}, {"x_adpType": "supplier", "providerMetadata": {"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-10-15T00:50:41.606Z"}, "affected": [{"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.0", "lessThan": "V3.1.5", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.0", "lessThan": "V3.1.5", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.0", "lessThan": "V3.1.5", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.0", "lessThan": "V3.1.5", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [{"status": "affected", "version": "0", "lessThan": "V1.1.1", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.0", "lessThan": "V3.1.5", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "RUGGEDCOM RST2428P", "versions": [{"status": "affected", "version": "0", "lessThan": "V3.2", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family", "versions": [{"status": "affected", "version": "0", "lessThan": "V3.2", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family", "versions": [{"status": "affected", "version": "0", "lessThan": "V3.2", "versionType": "custom"}], "defaultStatus": "unknown"}], "references": [{"url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"}, {"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"}, {"url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"}]}]}}

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No remote or adjacent-network data path reaches `pci_bus_lock()`.\nAC:L - The attacker controls both sides of the race: they trigger the bus reset on demand via the VFIO ioctl, and the bridge stays unlocked for the full `msleep(2)` plus up to ~1 s of `pci_bridge_wait_for_secondary_bus()` link polling, so no precise timing or unattainable memory layout is needed.\nPR:L - `VFIO_DEVICE_PCI_HOT_RESET` requires only an open VFIO device fd, which libvirt/QEMU and DPDK deployments routinely hand to an unprivileged user; no root or capability in the init namespace is needed to drive `pci_reset_bus()` repeatedly.\nUI:N - The attacker issues the ioctl (or repeatedly opens/closes the VFIO device) entirely on their own; no victim action is required to reach the unlocked reset.\nS:U - The corruption and any resulting crash stay within the kernel's own security authority \u2014 there is no guest-to-host escape or IOMMU/DMA boundary crossing, and VFIO already requires all bus-affected devices to be in the caller's device set.\nC:H - The bridge's `device_lock` is not held across the sleeping reset, so driver unbind/remove and PM transitions on the bridge run unsynchronized against an in-flight reset that keeps dereferencing `bus->self` and its port-service state, giving a use-after-free class read primitive over freed kernel objects.\nI:H - Without `pci_cfg_access_lock()` on the bridge, concurrent config writes and a parallel `pci_dev_save_and_disable()`/`pci_dev_restore()` on the same bridge interleave with the `PCI_BRIDGE_CONTROL` read-modify-write, corrupting bridge state (bus numbers, MMIO windows, COMMAND, control bits); the same missing `device_lock` makes the driver-model race exploitable for kernel memory corruption.\nA:H - A lost update can leave `PCI_BRIDGE_CTL_BUS_RESET` asserted, permanently removing every device behind the bridge (potentially the root storage or network controller), and the unlocked unbind/remove-versus-reset race produces oopses and hangs; the reset is repeatable at will."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "0790b89c7e911003b8c50ae50e3ac7645de1fae9", "versionType": "git"}, {"status": "affected", "version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "df77a678c33871a6e4ac5b54a71662f1d702335b", "versionType": "git"}, {"status": "affected", "version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "e2355d513b89a2cb511b4ded0deb426cdb01acd0", "versionType": "git"}, {"status": "affected", "version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945", "versionType": "git"}, {"status": "affected", "version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "7253b4fed46471cc247c6cacefac890a8472c083", "versionType": "git"}, {"status": "affected", "version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "78c6e39fef5c428960aff742149bba302dd46f5a", "versionType": "git"}, {"status": "affected", "version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "81c68e218ab883dfa368460a59b674084c0240da", "versionType": "git"}, {"status": "affected", "version": "090a3c5322e900f468b3205b76d0837003ad57b2", "lessThan": "a4e772898f8bf2e7e1cf661a12c60a5612c4afab", "versionType": "git"}], "programFiles": ["drivers/pci/pci.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.12"}, {"status": "unaffected", "version": "0", "lessThan": "3.12", "versionType": "semver"}, {"status": "unaffected", "version": "4.19.322", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.284", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.226", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.167", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.110", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.51", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.10.10", "versionType": "semver", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/pci/pci.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/0790b89c7e911003b8c50ae50e3ac7645de1fae9"}, {"url": "https://git.kernel.org/stable/c/df77a678c33871a6e4ac5b54a71662f1d702335b"}, {"url": "https://git.kernel.org/stable/c/e2355d513b89a2cb511b4ded0deb426cdb01acd0"}, {"url": "https://git.kernel.org/stable/c/04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945"}, {"url": "https://git.kernel.org/stable/c/7253b4fed46471cc247c6cacefac890a8472c083"}, {"url": "https://git.kernel.org/stable/c/78c6e39fef5c428960aff742149bba302dd46f5a"}, {"url": "https://git.kernel.org/stable/c/81c68e218ab883dfa368460a59b674084c0240da"}, {"url": "https://git.kernel.org/stable/c/a4e772898f8bf2e7e1cf661a12c60a5612c4afab"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Add missing bridge lock to pci_bus_lock()\n\nOne of the true positives that the cfg_access_lock lockdep effort\nidentified is this sequence:\n\n WARNING: CPU: 14 PID: 1 at drivers/pci/pci.c:4886 pci_bridge_secondary_bus_reset+0x5d/0x70\n RIP: 0010:pci_bridge_secondary_bus_reset+0x5d/0x70\n Call Trace:\n <TASK>\n ? __warn+0x8c/0x190\n ? pci_bridge_secondary_bus_reset+0x5d/0x70\n ? report_bug+0x1f8/0x200\n ? handle_bug+0x3c/0x70\n ? exc_invalid_op+0x18/0x70\n ? asm_exc_invalid_op+0x1a/0x20\n ? pci_bridge_secondary_bus_reset+0x5d/0x70\n pci_reset_bus+0x1d8/0x270\n vmd_probe+0x778/0xa10\n pci_device_probe+0x95/0x120\n\nWhere pci_reset_bus() users are triggering unlocked secondary bus resets.\nIronically pci_bus_reset(), several calls down from pci_reset_bus(), uses\npci_bus_lock() before issuing the reset which locks everything *but* the\nbridge itself.\n\nFor the same motivation as adding:\n\n bridge = pci_upstream_bridge(dev);\n if (bridge)\n pci_dev_lock(bridge);\n\nto pci_reset_function() for the \"bus\" and \"cxl_bus\" reset cases, add\npci_dev_lock() for @bus->self to pci_bus_lock().\n\n[bhelgaas: squash in recursive locking deadlock fix from Keith Busch:\nhttps://lore.kernel.org/r/20240711193650.701834-1-kbusch@meta.com]"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.19.322", "versionStartIncluding": "3.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.284", "versionStartIncluding": "3.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.226", "versionStartIncluding": "3.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.167", "versionStartIncluding": "3.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.110", "versionStartIncluding": "3.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.51", "versionStartIncluding": "3.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10.10", "versionStartIncluding": "3.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11", "versionStartIncluding": "3.12"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:38:20.290Z"}}}, "cveMetadata": {"cveId": "CVE-2024-46750", "state": "PUBLISHED", "dateUpdated": "2026-10-15T00:50:41.606Z", "dateReserved": "2024-09-11T15:12:18.267Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-09-18T07:12:10.484Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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GNU/Linux subsystem", "vendor": "Siemens", "versions": [{"lessThan": "V1.1.1", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "vendor": "Siemens", "versions": [{"lessThan": "V3.1.5", "status": "affected", "version": "V3.1.0", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "RUGGEDCOM RST2428P", "vendor": "Siemens", "versions": [{"lessThan": "V3.2", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family", "vendor": "Siemens", "versions": [{"lessThan": "V3.2", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family", "vendor": "Siemens", "versions": [{"lessThan": "V3.2", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "29162FB8-5FA4-4DC4-86CE-5EB0CAEEF2F3", "versionEndExcluding": "4.19.322", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6265A402-9C3C-438F-BFC5-4194B2568B85", "versionEndExcluding": "5.4.284", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "864FC17C-501A-4823-A643-6F35D65D8A97", "versionEndExcluding": "5.10.226", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "043405A4-25FE-45D4-A7BB-2A0C3B7D17C1", "versionEndExcluding": "5.15.167", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6B1A95FC-7E7E-428B-BB59-F76640C652AE", "versionEndExcluding": "6.1.110", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E4529134-BAC4-4776-840B-304009E181A0", "versionEndExcluding": "6.6.51", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "ACDEE48C-137A-4731-90D0-A675865E1BED", "versionEndExcluding": "6.10.10", "versionStartIncluding": "6.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Add missing bridge lock to pci_bus_lock()\n\nOne of the true positives that the cfg_access_lock lockdep effort\nidentified is this sequence:\n\n WARNING: CPU: 14 PID: 1 at drivers/pci/pci.c:4886 pci_bridge_secondary_bus_reset+0x5d/0x70\n RIP: 0010:pci_bridge_secondary_bus_reset+0x5d/0x70\n Call Trace:\n <TASK>\n ? __warn+0x8c/0x190\n ? pci_bridge_secondary_bus_reset+0x5d/0x70\n ? report_bug+0x1f8/0x200\n ? handle_bug+0x3c/0x70\n ? exc_invalid_op+0x18/0x70\n ? asm_exc_invalid_op+0x1a/0x20\n ? pci_bridge_secondary_bus_reset+0x5d/0x70\n pci_reset_bus+0x1d8/0x270\n vmd_probe+0x778/0xa10\n pci_device_probe+0x95/0x120\n\nWhere pci_reset_bus() users are triggering unlocked secondary bus resets.\nIronically pci_bus_reset(), several calls down from pci_reset_bus(), uses\npci_bus_lock() before issuing the reset which locks everything *but* the\nbridge itself.\n\nFor the same motivation as adding:\n\n bridge = pci_upstream_bridge(dev);\n if (bridge)\n pci_dev_lock(bridge);\n\nto pci_reset_function() for the \"bus\" and \"cxl_bus\" reset cases, add\npci_dev_lock() for @bus->self to pci_bus_lock().\n\n[bhelgaas: squash in recursive locking deadlock fix from Keith Busch:\nhttps://lore.kernel.org/r/20240711193650.701834-1-kbusch@meta.com]"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI: Agregar bloqueo de puente faltante a pci_bus_lock() Uno de los verdaderos positivos que identific\u00f3 el esfuerzo de cfg_access_lock lockdep es esta secuencia: ADVERTENCIA: CPU: 14 PID: 1 en drivers/pci/pci.c:4886 pci_bridge_secondary_bus_reset+0x5d/0x70 RIP: 0010:pci_bridge_secondary_bus_reset+0x5d/0x70 Rastreo de llamada: ? __warn+0x8c/0x190 ? pci_bridge_secondary_bus_reset+0x5d/0x70 ? report_bug+0x1f8/0x200 ? handle_bug+0x3c/0x70 ? exc_invalid_op+0x18/0x70 ? asm_exc_invalid_op+0x1a/0x20 ? pci_bridge_secondary_bus_reset+0x5d/0x70 pci_reset_bus+0x1d8/0x270 vmd_probe+0x778/0xa10 pci_device_probe+0x95/0x120 Donde los usuarios de pci_reset_bus() est\u00e1n activando reinicios de bus secundario desbloqueados. Ir\u00f3nicamente, pci_bus_reset(), varias llamadas despu\u00e9s de pci_reset_bus(), usa pci_bus_lock() antes de emitir el reinicio que bloquea todo *excepto* el puente mismo. Por la misma motivaci\u00f3n que agregar: bridge = pci_upstream_bridge(dev); if (bridge) pci_dev_lock(bridge); Para pci_reset_function() en los casos de reinicio de \"bus\" y \"cxl_bus\", agregue pci_dev_lock() para @bus-&gt;self a pci_bus_lock(). [bhelgaas: soluci\u00f3n de bloqueo recursivo de squash de Keith Busch: https://lore.kernel.org/r/20240711193650.701834-1-kbusch@meta.com]"}], "id": "CVE-2024-46750", "lastModified": "2026-10-15T01:18:52.817", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"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-2024-46750", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-29T14:47:52.159037Z", "version": "2.0.3"}}]}, "published": "2024-09-18T08:15:03.947", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0790b89c7e911003b8c50ae50e3ac7645de1fae9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7253b4fed46471cc247c6cacefac890a8472c083"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/78c6e39fef5c428960aff742149bba302dd46f5a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/81c68e218ab883dfa368460a59b674084c0240da"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a4e772898f8bf2e7e1cf661a12c60a5612c4afab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/df77a678c33871a6e4ac5b54a71662f1d702335b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e2355d513b89a2cb511b4ded0deb426cdb01acd0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2025:6966", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:6966", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}], "bugzilla": {"description": "kernel: PCI: Add missing bridge lock to pci_bus_lock()", "id": "2313098", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2313098"}, "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": "verified"}, "cwe": "CWE-667", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nPCI: Add missing bridge lock to pci_bus_lock()\nOne of the true positives that the cfg_access_lock lockdep effort\nidentified is this sequence:\nWARNING: CPU: 14 PID: 1 at drivers/pci/pci.c:4886 pci_bridge_secondary_bus_reset+0x5d/0x70\nRIP: 0010:pci_bridge_secondary_bus_reset+0x5d/0x70\nCall Trace:\n<TASK>\n? __warn+0x8c/0x190\n? pci_bridge_secondary_bus_reset+0x5d/0x70\n? report_bug+0x1f8/0x200\n? handle_bug+0x3c/0x70\n? exc_invalid_op+0x18/0x70\n? asm_exc_invalid_op+0x1a/0x20\n? pci_bridge_secondary_bus_reset+0x5d/0x70\npci_reset_bus+0x1d8/0x270\nvmd_probe+0x778/0xa10\npci_device_probe+0x95/0x120\nWhere pci_reset_bus() users are triggering unlocked secondary bus resets.\nIronically pci_bus_reset(), several calls down from pci_reset_bus(), uses\npci_bus_lock() before issuing the reset which locks everything *but* the\nbridge itself.\nFor the same motivation as adding:\nbridge = pci_upstream_bridge(dev);\nif (bridge)\npci_dev_lock(bridge);\nto pci_reset_function() for the \"bus\" and \"cxl_bus\" reset cases, add\npci_dev_lock() for @bus->self to pci_bus_lock().\n[bhelgaas: squash in recursive locking deadlock fix from Keith Busch:\nhttps://lore.kernel.org/r/20240711193650.701834-1-kbusch@meta.com]"], "name": "CVE-2024-46750", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-09-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-46750\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-46750\nhttps://lore.kernel.org/linux-cve-announce/2024091838-CVE-2024-46750-3be1@gregkh/T"], "threat_severity": "Moderate"}

{}