{"id":"CVE-2022-50749","summary":"acct: fix potential integer overflow in encode_comp_t()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nacct: fix potential integer overflow in encode_comp_t()\n\nThe integer overflow is descripted with following codes:\n  \u003e 317 static comp_t encode_comp_t(u64 value)\n  \u003e 318 {\n  \u003e 319         int exp, rnd;\n    ......\n  \u003e 341         exp \u003c\u003c= MANTSIZE;\n  \u003e 342         exp += value;\n  \u003e 343         return exp;\n  \u003e 344 }\n\nCurrently comp_t is defined as type of '__u16', but the variable 'exp' is\ntype of 'int', so overflow would happen when variable 'exp' in line 343 is\ngreater than 65535.","modified":"2026-04-02T08:28:45.064776Z","published":"2025-12-24T13:05:44.734Z","related":["SUSE-SU-2026:0263-1","SUSE-SU-2026:0317-1","SUSE-SU-2026:0411-1","SUSE-SU-2026:0473-1","SUSE-SU-2026:0617-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50749.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0aac6e60c464a5f942f995428e67f8ae1c422250"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1750a0983c455a9b3badd848471fc8d58cb61f67"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2224897d8187dc22a83e05d9361efcccf67bcf12"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6edd0cdee5780fd5f43356b72b29a2a6d48ef6da"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a815a3e019456c94b03bd183e7ac22fd29e9e6fd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c5f31c655bcc01b6da53b836ac951c1556245305"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cf60bbca1b83a7e0927e36dbf178328982927886"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e93f995a591c352d35d89c518c54f790e1537754"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ebe16676e1dcaa4556ec4d36ca40c82e99e88cfa"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50749.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50749"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"},{"fixed":"e93f995a591c352d35d89c518c54f790e1537754"},{"fixed":"cf60bbca1b83a7e0927e36dbf178328982927886"},{"fixed":"1750a0983c455a9b3badd848471fc8d58cb61f67"},{"fixed":"a815a3e019456c94b03bd183e7ac22fd29e9e6fd"},{"fixed":"6edd0cdee5780fd5f43356b72b29a2a6d48ef6da"},{"fixed":"ebe16676e1dcaa4556ec4d36ca40c82e99e88cfa"},{"fixed":"2224897d8187dc22a83e05d9361efcccf67bcf12"},{"fixed":"0aac6e60c464a5f942f995428e67f8ae1c422250"},{"fixed":"c5f31c655bcc01b6da53b836ac951c1556245305"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50749.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.12"},{"fixed":"4.9.337"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.10.0"},{"fixed":"4.14.303"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.15.0"},{"fixed":"4.19.270"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.20.0"},{"fixed":"5.4.229"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.163"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.86"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.0.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.1.0"},{"fixed":"6.1.2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50749.json"}}],"schema_version":"1.7.5"}