{"id":"CVE-2026-74394","summary":"RDMA/srpt: fix integer overflow in immediate data length check","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/srpt: fix integer overflow in immediate data length check\n\nimm_buf-\u003elen is a user-controlled uint32_t received from the network.\nAdding it to imm_data_offset without overflow checking allows a\nmalicious initiator to send len=0xFFFFFFFF, causing req_size to wrap\naround to a small value, bypassing the bounds check, and subsequently\npassing a ~4GB length to sg_init_one().\n\nUse check_add_overflow() to detect wrapping before the comparison.","modified":"2026-08-16T03:48:50.491520734Z","published":"2026-08-15T05:59:07.144Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74394.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/067b9556eeb007f28b7c2033b4dcde5b6d88418f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3efa5301137140a3ca3677a9098c0a93a0acfd49"},{"type":"WEB","url":"https://git.kernel.org/stable/c/65572fbd86033ae2370125593d59b8be34253aaf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/72497172a4799119a0282a5eb5e2b8ddcc821921"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c82c860f8c8e4f4f454c9f14d0ad0c0466965f7d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dcf7a986f377cce0749ed53f1d64195fbd5fdf91"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eb4ecdf631fe00e8020bf461503cb9b7017ed796"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74394.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74394"},{"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":"5dabcd0456d7ee17c2c7a17d7c2305444d2b9639"},{"fixed":"c82c860f8c8e4f4f454c9f14d0ad0c0466965f7d"},{"fixed":"3efa5301137140a3ca3677a9098c0a93a0acfd49"},{"fixed":"067b9556eeb007f28b7c2033b4dcde5b6d88418f"},{"fixed":"dcf7a986f377cce0749ed53f1d64195fbd5fdf91"},{"fixed":"07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e"},{"fixed":"65572fbd86033ae2370125593d59b8be34253aaf"},{"fixed":"72497172a4799119a0282a5eb5e2b8ddcc821921"},{"fixed":"eb4ecdf631fe00e8020bf461503cb9b7017ed796"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74394.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.0.0"},{"fixed":"5.10.261"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.212"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.145"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74394.json"}}],"schema_version":"1.9.0"}