{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98747 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98747 is a vulnerability in Linux, published on 18 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-98747 and fix it if it is affected.\n\nWhat it is: CVE-2026-98747 is a vulnerability in Linux, published on 18 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-98747 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-2026-98747/ (Markdown: https://insights.sbomify.com/CVE-2026-98747/index.md)","id":"CVE-2026-98747","markdown":"https://insights.sbomify.com/CVE-2026-98747/index.md","name":"CVE-2026-98747","record":{"aliases":["AZL-109137","BELL-CVE-2026-98747","DEBIAN-CVE-2026-98747","GHSA-6854-f26p-xx8r","UBUNTU-CVE-2026-98747"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"high_privilege","summary":"A local attacker with high privileges can trigger a NULL pointer dereference in the Linux kernel serial core, causing a system crash.","user_interaction":"not_required","vuln_class":"null_dereference"},"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\nserial: core: fix NULL pointer dereference in serial_core_unregister_port()\n\nport-\u003eport_dev is NULL when no port device is installed: it is cleared\non teardown, and never set if registration failed before\nserial_core_port_device_add().  serial_core_unregister_port() passes it\nstraight to serial_core_get_ctrl_dev(), which dereferences it:\n\n  KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047]\n  RIP: serial_core_unregister_port\n  Call Trace:\n   serial8250_unregister_port\n   serial8250_remove\n   unbind_store\n\nReturn early when there is no port device, and read port-\u003eport_dev\nunder port_mutex.\n\nAlso clear port-\u003eport_dev on the serial_core_register_port() error\npath, where the port device has already been removed.","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":"serial: core: fix NULL pointer dereference in serial_core_unregister_port()","id":"CVE-2026-98747","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"serial: 8250_bcm7271: fix use-after-free in brcmuart_remove()","id":"CVE-2026-98748"},"packages":[],"prev":{"headline":"serial: ma35d1: Fix clock reference leak in ma35d1serial_probe()","id":"CVE-2026-98746"},"products":["Linux"],"published":"2026-10-18","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":"2026-10-19","vendors":["Linux"]},"summary":"A local attacker with high privileges can trigger a NULL pointer dereference in the Linux kernel serial core, causing a system crash.","url":"https://insights.sbomify.com/CVE-2026-98747/"}