{"id":"DEBIAN-CVE-2024-46750","details":"In the Linux kernel, the following vulnerability has been resolved:  PCI: Add missing bridge lock to pci_bus_lock()  One of the true positives that the cfg_access_lock lockdep effort identified is this sequence:    WARNING: CPU: 14 PID: 1 at drivers/pci/pci.c:4886 pci_bridge_secondary_bus_reset+0x5d/0x70   RIP: 0010:pci_bridge_secondary_bus_reset+0x5d/0x70   Call Trace:    \u003cTASK\u003e    ? __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  Where pci_reset_bus() users are triggering unlocked secondary bus resets. Ironically pci_bus_reset(), several calls down from pci_reset_bus(), uses pci_bus_lock() before issuing the reset which locks everything *but* the bridge itself.  For the same motivation as adding:    bridge = pci_upstream_bridge(dev);   if (bridge)     pci_dev_lock(bridge);  to pci_reset_function() for the \"bus\" and \"cxl_bus\" reset cases, add pci_dev_lock() for @bus-\u003eself to pci_bus_lock().  [bhelgaas: squash in recursive locking deadlock fix from Keith Busch: https://lore.kernel.org/r/20240711193650.701834-1-kbusch@meta.com]","modified":"2026-09-01T20:05:31.659212482Z","published":"2024-09-18T08:15:03.947Z","upstream":["CVE-2024-46750"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-46750"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.112-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-46750.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.10.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-46750.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.10.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-46750.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}