CVE-2026-74394RDMA/srpt: fix integer overflow in immediate data length check
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 before c82c860f8c8e4f4f454c9f14d0ad0c0466965f7d; 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 builds before 3efa5301137140a3ca3677a9098c0a93a0acfd49; from 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 before 067b9556eeb007f28b7c2033b4dcde5b6d88418f; from 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 before dcf7a986f377cce0749ed53f1d64195fbd5fdf91; from 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 before 07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e; from 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 before 65572fbd86033ae2370125593d59b8be34253aaf; from 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 before 72497172a4799119a0282a5eb5e2b8ddcc821921; from 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 before eb4ecdf631fe00e8020bf461503cb9b7017ed796 | CNA record |
References
- https://git.kernel.org/stable/c/c82c860f8c8e4f4f454c9f14d0ad0c0466965f7d
- https://git.kernel.org/stable/c/3efa5301137140a3ca3677a9098c0a93a0acfd49
- https://git.kernel.org/stable/c/067b9556eeb007f28b7c2033b4dcde5b6d88418f
- https://git.kernel.org/stable/c/dcf7a986f377cce0749ed53f1d64195fbd5fdf91
- https://git.kernel.org/stable/c/07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e
- https://git.kernel.org/stable/c/65572fbd86033ae2370125593d59b8be34253aaf
- https://git.kernel.org/stable/c/72497172a4799119a0282a5eb5e2b8ddcc821921
- https://git.kernel.org/stable/c/eb4ecdf631fe00e8020bf461503cb9b7017ed796
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.