{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-53363", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53363", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-09-17T14:56:52.401Z", "updatedAt": "2026-05-11T19:43:30.054Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "PCI: Fix use-after-free in pci_bus_release_domain_nr()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Fix use-after-free in pci_bus_release_domain_nr()\n\nCommit c14f7ccc9f5d (\"PCI: Assign PCI domain IDs by ida_alloc()\")\nintroduced a use-after-free bug in the bus removal cleanup. The issue was\nfound with kfence:\n\n [ 19.293351] BUG: KFENCE: use-after-free read in pci_bus_release_domain_nr+0x10/0x70\n\n [ 19.302817] Use-after-free read at 0x000000007f3b80eb (in kfence-#115):\n [ 19.309677] pci_bus_release_domain_nr+0x10/0x70\n [ 19.309691] dw_pcie_host_deinit+0x28/0x78\n [ 19.309702] tegra_pcie_deinit_controller+0x1c/0x38 [pcie_tegra194]\n [ 19.309734] tegra_pcie_dw_probe+0x648/0xb28 [pcie_tegra194]\n [ 19.309752] platform_probe+0x90/0xd8\n ...\n\n [ 19.311457] kfence-#115: 0x00000000063a155a-0x00000000ba698da8, size=1072, cache=kmalloc-2k\n\n [ 19.311469] allocated by task 96 on cpu 10 at 19.279323s:\n [ 19.311562] __kmem_cache_alloc_node+0x260/0x278\n [ 19.311571] kmalloc_trace+0x24/0x30\n [ 19.311580] pci_alloc_bus+0x24/0xa0\n [ 19.311590] pci_register_host_bridge+0x48/0x4b8\n [ 19.311601] pci_scan_root_bus_bridge+0xc0/0xe8\n [ 19.311613] pci_host_probe+0x18/0xc0\n [ 19.311623] dw_pcie_host_init+0x2c0/0x568\n [ 19.311630] tegra_pcie_dw_probe+0x610/0xb28 [pcie_tegra194]\n [ 19.311647] platform_probe+0x90/0xd8\n ...\n\n [ 19.311782] freed by task 96 on cpu 10 at 19.285833s:\n [ 19.311799] release_pcibus_dev+0x30/0x40\n [ 19.311808] device_release+0x30/0x90\n [ 19.311814] kobject_put+0xa8/0x120\n [ 19.311832] device_unregister+0x20/0x30\n [ 19.311839] pci_remove_bus+0x78/0x88\n [ 19.311850] pci_remove_root_bus+0x5c/0x98\n [ 19.311860] dw_pcie_host_deinit+0x28/0x78\n [ 19.311866] tegra_pcie_deinit_controller+0x1c/0x38 [pcie_tegra194]\n [ 19.311883] tegra_pcie_dw_probe+0x648/0xb28 [pcie_tegra194]\n [ 19.311900] platform_probe+0x90/0xd8\n ...\n\n [ 19.313579] CPU: 10 PID: 96 Comm: kworker/u24:2 Not tainted 6.2.0 #4\n [ 19.320171] Hardware name: /, BIOS 1.0-d7fb19b 08/10/2022\n [ 19.325852] Workqueue: events_unbound deferred_probe_work_func\n\nThe stack trace is a bit misleading as dw_pcie_host_deinit() doesn't\ndirectly call pci_bus_release_domain_nr(). The issue turns out to be in\npci_remove_root_bus() which first calls pci_remove_bus() which frees the\nstruct pci_bus when its struct device is released. Then\npci_bus_release_domain_nr() is called and accesses the freed struct\npci_bus. Reordering these fixes the issue.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "f8b6bd6c04d4dfc4c200e6fa306e61e3b42ec5fc", "status": "affected", "versionType": "git", "lessThan": "52b0343c7d628f37b38e3279ba585526b850ad3b" }, { "version": "db273126bf548a2dc611372e8f6a817b2b16b563", "status": "affected", "versionType": "git", "lessThan": "ad367516b1c09317111255ecfbf5e42c33e31918" }, { "version": "ead4d69b3ef047b0f670511d81e9ced7ac876b44", "status": "affected", "versionType": "git", "lessThan": "fbf45385e3419b8698b5e0a434847072375cfec2" }, { "version": "c14f7ccc9f5dcf9d06ddeec706f85405b2c80600", "status": "affected", "versionType": "git", "lessThan": "07a75c0050e59c50f038cc5f4e2a3258c8f8c9d0" }, { "version": "c14f7ccc9f5dcf9d06ddeec706f85405b2c80600", "status": "affected", "versionType": "git", "lessThan": "30ba2d09edb5ea857a1473ae3d820911347ada62" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.2", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.2" }, { "version": "6.2.12", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.2.*" }, { "version": "6.3", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }