CVE-2026-74394

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 < c82c860f8c8e4f4f454c9f14d0ad0c0466965f7daffected
LinuxLinux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 < 3efa5301137140a3ca3677a9098c0a93a0acfd49affected
LinuxLinux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 < 067b9556eeb007f28b7c2033b4dcde5b6d88418faffected
LinuxLinux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 < dcf7a986f377cce0749ed53f1d64195fbd5fdf91affected
LinuxLinux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 < 07dec3f6dcb6c6cc891162d252b800eb0e6d5e8eaffected
LinuxLinux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 < 65572fbd86033ae2370125593d59b8be34253aafaffected
LinuxLinux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 < 72497172a4799119a0282a5eb5e2b8ddcc821921affected
LinuxLinux5dabcd0456d7ee17c2c7a17d7c2305444d2b9639 < eb4ecdf631fe00e8020bf461503cb9b7017ed796affected
LinuxLinux5.0affected
LinuxLinux0 < 5.0unaffected
LinuxLinux5.10.261 <= 5.10.*unaffected
LinuxLinux5.15.212 <= 5.15.*unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2-rc1 <= *unaffected

Weaknesses

References