{ "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-2022-50728", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50728", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-12-24T12:22:49.001Z", "updatedAt": "2026-05-11T19:24:22.183Z", "importedAt": "2026-10-24T01:56:49.724Z", "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": "s390/lcs: Fix return type of lcs_start_xmit()", "summary": "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->ndo_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.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "status": "affected", "versionType": "git", "lessThan": "7b4da3fcd513b8e67823eb80da37aad99b3339c1" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "status": "affected", "versionType": "git", "lessThan": "d49cc2b705711fb8fb849e7c660929b2100360b7" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "status": "affected", "versionType": "git", "lessThan": "e684215d8a903752e2b0cc946517fb61e57a880a" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "status": "affected", "versionType": "git", "lessThan": "20022d551f2064a194d8e0acb6cd7a85094a17b2" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "status": "affected", "versionType": "git", "lessThan": "ebc3c77785dc8b5b626309c0032a38fbb139287a" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "status": "affected", "versionType": "git", "lessThan": "5ad774fb823c24bbeb21a15a67103ea7a6f5b928" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "status": "affected", "versionType": "git", "lessThan": "69669820844f81a77b6db24b86581320ae4d17af" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "status": "affected", "versionType": "git", "lessThan": "cda74cdc280ba35c8993e7517bac5c257ff36f18" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "status": "affected", "versionType": "git", "lessThan": "bb16db8393658e0978c3f0d30ae069e878264fa3" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.32", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.32" }, { "version": "4.9.337", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.9.*" }, { "version": "4.14.303", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.270", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.229", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.163", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.86", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.0.16", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.0.*" }, { "version": "6.1.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }