{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2022-50728 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-50728 is a denial of service vulnerability in Linux, published on 24 Dec 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-2022-50728 and fix it if it is affected.\n\nWhat it is: CVE-2022-50728 is a denial of service vulnerability in Linux, published on 24 Dec 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-2022-50728 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-2022-50728/ (Markdown: https://insights.sbomify.com/CVE-2022-50728/index.md)","id":"CVE-2022-50728","markdown":"https://insights.sbomify.com/CVE-2022-50728/index.md","name":"CVE-2022-50728","record":{"aliases":["DEBIAN-CVE-2022-50728","GHSA-fq4q-h53f-3wjv","UBUNTU-CVE-2022-50728"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel driver","requires_auth":"none","summary":"A type mismatch in the s390 LCS network driver can cause kernel panics if Control Flow Integrity is enabled, leading to denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"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\ns390/lcs: Fix return type of lcs_start_xmit()\n\nWith clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG),\nindirect call targets are validated against the expected function\npointer prototype to make sure the call target is valid to help mitigate\nROP attacks. If they are not identical, there is a failure at run time,\nwhich manifests as either a kernel panic or thread getting killed. A\nproposed warning in clang aims to catch these at compile time, which\nreveals:\n\n  drivers/s390/net/lcs.c:2090:21: error: incompatible function pointer types initializing 'netdev_tx_t (*)(struct sk_buff *, struct net_device *)' (aka 'enum netdev_tx (*)(struct sk_buff *, struct net_device *)') with an expression of type 'int (struct sk_buff *, struct net_device *)' [-Werror,-Wincompatible-function-pointer-types-strict]\n          .ndo_start_xmit         = lcs_start_xmit,\n                                    ^~~~~~~~~~~~~~\n  drivers/s390/net/lcs.c:2097:21: error: incompatible function pointer types initializing 'netdev_tx_t (*)(struct sk_buff *, struct net_device *)' (aka 'enum netdev_tx (*)(struct sk_buff *, struct net_device *)') with an expression of type 'int (struct sk_buff *, struct net_device *)' [-Werror,-Wincompatible-function-pointer-types-strict]\n          .ndo_start_xmit         = lcs_start_xmit,\n                                    ^~~~~~~~~~~~~~\n\n-\u003endo_start_xmit() in 'struct net_device_ops' expects a return type of\n'netdev_tx_t', not 'int'. Adjust the return type of lcs_start_xmit() to\nmatch the prototype's to resolve the warning and potential CFI failure,\nshould s390 select ARCH_SUPPORTS_CFI_CLANG in the future.","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":"s390/lcs: Fix return type of lcs_start_xmit()","id":"CVE-2022-50728","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2022"},"n_packages":0,"n_references":9,"next":{"headline":"ksmbd: Fix resource leak in ksmbd_session_rpc_open()","id":"CVE-2022-50729"},"packages":[],"prev":{"headline":"scsi: efct: Fix possible memleak in efct_device_init()","id":"CVE-2022-50727"},"products":["Linux"],"published":"2025-12-24","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 type mismatch in the s390 LCS network driver can cause kernel panics if Control Flow Integrity is enabled, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2022-50728/"}