{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-53814 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53814 is a memory corruption vulnerability in Linux, published on 9 Dec 2025."},"fix_prompt":"Check this codebase for CVE-2023-53814 and fix it if it is affected.\n\nWhat it is: CVE-2023-53814 is a memory corruption vulnerability in Linux, published on 9 Dec 2025. \nExploitation: There is no known exploitation of CVE-2023-53814 in the wild and no public exploit code.\n\nAffected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-53814/ (Markdown: https://insights.sbomify.com/CVE-2023-53814/index.md)","id":"CVE-2023-53814","markdown":"https://insights.sbomify.com/CVE-2023-53814/index.md","name":"CVE-2023-53814","record":{"aliases":["BELL-CVE-2023-53814","DEBIAN-CVE-2023-53814","GHSA-3f48-8rf6-xmcq","UBUNTU-CVE-2023-53814"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A logic error in Linux kernel PCI resource handling causes memory leaks and potential denial of service by incorrectly skipping valid root bus resources.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Fix dropping valid root bus resources with .end = zero\n\nOn r8a7791/koelsch:\n\n  kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)\n  # cat /sys/kernel/debug/kmemleak\n  unreferenced object 0xc3a34e00 (size 64):\n    comm \"swapper/0\", pid 1, jiffies 4294937460 (age 199.080s)\n    hex dump (first 32 bytes):\n      b4 5d 81 f0 b4 5d 81 f0 c0 b0 a2 c3 00 00 00 00  .]...]..........\n      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    backtrace:\n      [\u003cfe3aa979\u003e] __kmalloc+0xf0/0x140\n      [\u003c34bd6bc0\u003e] resource_list_create_entry+0x18/0x38\n      [\u003c767046bc\u003e] pci_add_resource_offset+0x20/0x68\n      [\u003cb3f3edf2\u003e] devm_of_pci_get_host_bridge_resources.constprop.0+0xb0/0x390\n\nWhen coalescing two resources for a contiguous aperture, the second\nresource is enlarged to cover the full contiguous range, while the first\nresource is marked invalid.  This invalidation is done by clearing the\nflags, start, and end members.\n\nWhen adding the initial resources to the bus later, invalid resources are\nskipped.  Unfortunately, the check for an invalid resource considers only\nthe end member, causing false positives.\n\nE.g. on r8a7791/koelsch, root bus resource 0 (\"bus 00\") is skipped, and no\nlonger registered with pci_bus_insert_busn_res() (causing the memory leak),\nnor printed:\n\n   pci-rcar-gen2 ee090000.pci: host bridge /soc/pci@ee090000 ranges:\n   pci-rcar-gen2 ee090000.pci:      MEM 0x00ee080000..0x00ee08ffff -\u003e 0x00ee080000\n   pci-rcar-gen2 ee090000.pci: PCI: revision 11\n   pci-rcar-gen2 ee090000.pci: PCI host bridge to bus 0000:00\n  -pci_bus 0000:00: root bus resource [bus 00]\n   pci_bus 0000:00: root bus resource [mem 0xee080000-0xee08ffff]\n\nFix this by only skipping resources where all of the flags, start, and end\nmembers are zero.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"PCI: Fix dropping valid root bus resources with .end = zero","id":"CVE-2023-53814","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":4,"next":{"headline":"posix-timers: Prevent RT livelock in itimer_delete()","id":"CVE-2023-53815"},"packages":[],"prev":{"headline":"ext4: fix rbtree traversal bug in ext4_mb_use_preallocated","id":"CVE-2023-53813"},"products":["Linux"],"published":"2025-12-09","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A logic error in Linux kernel PCI resource handling causes memory leaks and potential denial of service by incorrectly skipping valid root bus resources.","url":"https://insights.sbomify.com/CVE-2023-53814/"}