RDMA/srpt: fix integer overflow in immediate data length check
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.
CVE-2026-74394
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-74394
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5dabcd0456d7ee17c2c7a17d7c2305444d2b9639",
"lessThan": "c82c860f8c8e4f4f454c9f14d0ad0c0466965f7d",
"versionType": "git"
},
{
"status": "affected",
"version": "5dabcd0456d7ee17c2c7a17d7c2305444d2b9639",
"lessThan": "3efa5301137140a3ca3677a9098c0a93a0acfd49",
"versionType": "git"
},
{
"status": "affected",
"version": "5dabcd0456d7ee17c2c7a17d7c2305444d2b9639",
"lessThan": "067b9556eeb007f28b7c2033b4dcde5b6d88418f",
"versionType": "git"
},
{
"status": "affected",
"version": "5dabcd0456d7ee17c2c7a17d7c2305444d2b9639",
"lessThan": "dcf7a986f377cce0749ed53f1d64195fbd5fdf91",
"versionType": "git"
},
{
"status": "affected",
"version": "5dabcd0456d7ee17c2c7a17d7c2305444d2b9639",
"lessThan": "07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e",
"versionType": "git"
},
{
"status": "affected",
"version": "5dabcd0456d7ee17c2c7a17d7c2305444d2b9639",
"lessThan": "65572fbd86033ae2370125593d59b8be34253aaf",
"versionType": "git"
},
{
"status": "affected",
"version": "5dabcd0456d7ee17c2c7a17d7c2305444d2b9639",
"lessThan": "72497172a4799119a0282a5eb5e2b8ddcc821921",
"versionType": "git"
},
{
"status": "affected",
"version": "5dabcd0456d7ee17c2c7a17d7c2305444d2b9639",
"lessThan": "eb4ecdf631fe00e8020bf461503cb9b7017ed796",
"versionType": "git"
}
],
"programFiles": [
"drivers/infiniband/ulp/srpt/ib_srpt.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.261",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.212",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.178",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.145",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.97",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.40",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/infiniband/ulp/srpt/ib_srpt.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-74394
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #33135 · Revision 1
- Added to Heist Feed
- Publisher date