{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-50564", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-10-22T13:20:23.759Z", "datePublished": "2025-10-22T13:23:22.703Z", "dateUpdated": "2026-05-11T19:21:51.788Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:21:51.788Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/netiucv: Fix return type of netiucv_tx()\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/netiucv.c:1854:21: 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 = netiucv_tx,\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 netiucv_tx() to\nmatch the prototype's to resolve the warning and potential CFI failure,\nshould s390 select ARCH_SUPPORTS_CFI_CLANG in the future.\n\nAdditionally, while in the area, remove a comment block that is no\nlonger relevant." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/s390/net/netiucv.c" ], "versions": [ { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "lessThan": "f13d870fce90f01cf930bfaffecc8185ae0be21c", "status": "affected", "versionType": "git" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "lessThan": "eccc88c0efe407e579291792ad07a7dedc0f63f0", "status": "affected", "versionType": "git" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "lessThan": "85d392710275355425df8618ccbebbc336f5acc5", "status": "affected", "versionType": "git" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "lessThan": "4bee3c75d5bf7c2b5dc0b520410eb40449e5da31", "status": "affected", "versionType": "git" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "lessThan": "3ac0217ca9186c2f9af9a0113a331a42aa847894", "status": "affected", "versionType": "git" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "lessThan": "dfbf0122ea1b9b3e73fa22c8ff6bd888935c54fc", "status": "affected", "versionType": "git" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "lessThan": "e7a849f740e3576e79cba403697e916f4c3a6f12", "status": "affected", "versionType": "git" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "lessThan": "d034fa43af92fc46a81d882f46d9cc3e4ffdbbcc", "status": "affected", "versionType": "git" }, { "version": "dc1f8bf68b311b1537cb65893430b6796118498a", "lessThan": "88d86d18d7cf7e9137c95f9d212bb9fff8a1b4be", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/s390/net/netiucv.c" ], "versions": [ { "version": "2.6.32", "status": "affected" }, { "version": "0", "lessThan": "2.6.32", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.337", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.303", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.270", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.229", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.163", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.86", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.16", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.2", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "4.9.337" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "4.14.303" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "4.19.270" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "5.4.229" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "5.10.163" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "5.15.86" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "6.0.16" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "6.1.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "6.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f13d870fce90f01cf930bfaffecc8185ae0be21c" }, { "url": "https://git.kernel.org/stable/c/eccc88c0efe407e579291792ad07a7dedc0f63f0" }, { "url": "https://git.kernel.org/stable/c/85d392710275355425df8618ccbebbc336f5acc5" }, { "url": "https://git.kernel.org/stable/c/4bee3c75d5bf7c2b5dc0b520410eb40449e5da31" }, { "url": "https://git.kernel.org/stable/c/3ac0217ca9186c2f9af9a0113a331a42aa847894" }, { "url": "https://git.kernel.org/stable/c/dfbf0122ea1b9b3e73fa22c8ff6bd888935c54fc" }, { "url": "https://git.kernel.org/stable/c/e7a849f740e3576e79cba403697e916f4c3a6f12" }, { "url": "https://git.kernel.org/stable/c/d034fa43af92fc46a81d882f46d9cc3e4ffdbbcc" }, { "url": "https://git.kernel.org/stable/c/88d86d18d7cf7e9137c95f9d212bb9fff8a1b4be" } ], "title": "s390/netiucv: Fix return type of netiucv_tx()", "x_generator": { "engine": "bippy-1.2.0" } } } }