CVE-2026-74394
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Linux
PublishedAug 15, 2026
First seenAug 15, 2026
How to fix
Update
- Linux Linuxc82c860f8c8e4f4f454c9f14d0ad0c0466965f7d, 3efa5301137140a3ca3677a9098c0a93a0acfd49, 067b9556eeb007f28b7c2033b4dcde5b6d88418f, dcf7a986f377cce0749ed53f1d64195fbd5fdf91, 07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e, 65572fbd86033ae2370125593d59b8be34253aaf, 72497172a4799119a0282a5eb5e2b8ddcc821921, eb4ecdf631fe00e8020bf461503cb9b7017ed796 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 ≤ v < c82c860f8c8e4f4f454c9f14d0ad0c0466965f7d, 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 ≤ v < 3efa5301137140a3ca3677a9098c0a93a0acfd49, 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 ≤ v < 067b9556eeb007f28b7c2033b4dcde5b6d88418f, 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 ≤ v < dcf7a986f377cce0749ed53f1d64195fbd5fdf91, 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 ≤ v < 07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e, 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 ≤ v < 65572fbd86033ae2370125593d59b8be34253aaf, 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 ≤ v < 72497172a4799119a0282a5eb5e2b8ddcc821921, 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 ≤ v < eb4ecdf631fe00e8020bf461503cb9b7017ed796, 5.0 | c82c860f8c8e4f4f454c9f14d0ad0c0466965f7d, 3efa5301137140a3ca3677a9098c0a93a0acfd49, 067b9556eeb007f28b7c2033b4dcde5b6d88418f, dcf7a986f377cce0749ed53f1d64195fbd5fdf91, 07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e, 65572fbd86033ae2370125593d59b8be34253aaf, 72497172a4799119a0282a5eb5e2b8ddcc821921, eb4ecdf631fe00e8020bf461503cb9b7017ed796 |
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