{"id":"CVE-2022-49208","summary":"RDMA/irdma: Prevent some integer underflows","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Prevent some integer underflows\n\nMy static checker complains that:\n\n    drivers/infiniband/hw/irdma/ctrl.c:3605 irdma_sc_ceq_init()\n    warn: can subtract underflow 'info-\u003edev-\u003ehmc_fpm_misc.max_ceqs'?\n\nIt appears that \"info-\u003edev-\u003ehmc_fpm_misc.max_ceqs\" comes from the firmware\nin irdma_sc_parse_fpm_query_buf() so, yes, there is a chance that it could\nbe zero.  Even if we trust the firmware, it's easy enough to change the\ncondition just as a hardenning measure.","modified":"2026-04-02T08:27:23.790482Z","published":"2025-02-26T01:55:46.666Z","related":["SUSE-SU-2025:1027-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1241-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49208.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/6f6dbb819dfc1a35bcb8b709b5c83a3ea8beff75"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7340c3675d7ac946f4019b84cd7c64ed542dfe4c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d52dab6e03550f9c97121b0c11c0a3ed78ee76a4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f21056f15bbeacab7b4b87af232f5599d1f2bff1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49208.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49208"},{"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":"3f49d684256963d3f27dfb9d9ff228e2255be78d"},{"fixed":"d52dab6e03550f9c97121b0c11c0a3ed78ee76a4"},{"fixed":"f21056f15bbeacab7b4b87af232f5599d1f2bff1"},{"fixed":"7340c3675d7ac946f4019b84cd7c64ed542dfe4c"},{"fixed":"6f6dbb819dfc1a35bcb8b709b5c83a3ea8beff75"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49208.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}