{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-49504 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-49504 is a medium-severity use after free vulnerability in Linux kernel, published on 26 Feb 2025. 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-2022-49504 and fix it if it is affected.\n\nWhat it is: CVE-2022-49504 is a medium-severity use after free vulnerability in Linux kernel, published on 26 Feb 2025. 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-2022-49504 in the wild and no public exploit code.\n\nAffected product: Linux kernel. 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-2022-49504/ (Markdown: https://insights.sbomify.com/CVE-2022-49504/index.md)","id":"CVE-2022-49504","markdown":"https://insights.sbomify.com/CVE-2022-49504/index.md","name":"CVE-2022-49504","record":{"aliases":["AZL-68624","DEBIAN-CVE-2022-49504","GHSA-2rh7-4r32-mrr5","ROOT-OS-DEBIAN-11-CVE-2022-49504","ROOT-OS-UBUNTU-2204-CVE-2022-49504","UBUNTU-CVE-2022-49504"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel SCSI driver","requires_auth":"low_privilege","summary":"A use-after-free in the lpfc SCSI driver causes a system crash when removing an external loopback plug, leading to denial of service.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Inhibit aborts if external loopback plug is inserted\n\nAfter running a short external loopback test, when the external loopback is\nremoved and a normal cable inserted that is directly connected to a target\ndevice, the system oops in the llpfc_set_rrq_active() routine.\n\nWhen the loopback was inserted an FLOGI was transmit. As we're looped back,\nwe receive the FLOGI request. The FLOGI is ABTS'd as we recognize the same\nwppn thus understand it's a loopback. However, as the ABTS sends address\ninformation the port is not set to (fffffe), the ABTS is dropped on the\nwire. A short 1 frame loopback test is run and completes before the ABTS\ntimes out. The looback is unplugged and the new cable plugged in, and the\nan FLOGI to the new device occurs and completes. Due to a mixup in ref\ncounting the completion of the new FLOGI releases the fabric ndlp. Then the\noriginal ABTS completes and references the released ndlp generating the\noops.\n\nCorrect by no-op'ing the ABTS when in loopback mode (it will be dropped\nanyway). Added a flag to track the mode to recognize when it should be\nno-op'd.","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":"scsi: lpfc: Inhibit aborts if external loopback plug is inserted","id":"CVE-2022-49504","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2022"},"n_packages":0,"n_references":2,"next":{"headline":"NFC: NULL out the dev-\u003erfkill to prevent UAF","id":"CVE-2022-49505"},"packages":[],"prev":{"headline":"ath9k_htc: fix potential out of bounds access with invalid rxstatus-\u003ers_keyix","id":"CVE-2022-49503"},"products":["Linux"],"published":"2025-02-26","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A use-after-free in the lpfc SCSI driver causes a system crash when removing an external loopback plug, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2022-49504/"}