by Kastro CVE-2026-74394
Linux Linux — RDMA/srpt: fix integer overflow in immediate data length check
Description · from the CVE record
In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: fix integer overflow in immediate data length check imm_buf->len is a user-controlled uint32_t received from the network. Adding it to imm_data_offset without overflow checking allows a malicious initiator to send len=0xFFFFFFFF, causing req_size to wrap around to a small value, bypassing the bounds check, and subsequently passing a ~4GB length to sg_init_one(). Use check_add_overflow() to detect wrapping before the comparison.
Affected
ProductAffectedFixed inSource
Linux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 – < c82c860f8c8e4f4f454c9f14d0ad0c0466965f7dc82c860f8c8e4f4f454c9f14d0ad0c0466965f7dCNA
Linux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 – < 3efa5301137140a3ca3677a9098c0a93a0acfd493efa5301137140a3ca3677a9098c0a93a0acfd49CNA
Linux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 – < 067b9556eeb007f28b7c2033b4dcde5b6d88418f067b9556eeb007f28b7c2033b4dcde5b6d88418fCNA
Linux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 – < dcf7a986f377cce0749ed53f1d64195fbd5fdf91dcf7a986f377cce0749ed53f1d64195fbd5fdf91CNA
Linux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 – < 07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e07dec3f6dcb6c6cc891162d252b800eb0e6d5e8eCNA
Linux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 – < 65572fbd86033ae2370125593d59b8be34253aaf65572fbd86033ae2370125593d59b8be34253aafCNA
Linux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 – < 72497172a4799119a0282a5eb5e2b8ddcc82192172497172a4799119a0282a5eb5e2b8ddcc821921CNA
Linux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 – < eb4ecdf631fe00e8020bf461503cb9b7017ed796eb4ecdf631fe00e8020bf461503cb9b7017ed796CNA
Linux5.05.10.261CNA
Scores by source
Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total