Critical severity · published Aug 15, 2026
CVE-2026-72129
nvmet-rdma: handle inline data with a nonzero offset
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
nvmet-rdma: handle inline data with a nonzero offset
nvmet_rdma_use_inline_sg() maps the host-controlled inline data offset
into the per-command inline scatterlist. The bounds check admits any
offset with off + len <= inline_data_size, but the mapping still assumes
the data begins in the first inline page:
sg->offset = off;
sg->length = min_t(int, len, PAGE_SIZE - off);
When a port is configured with inline_data_size > PAGE_SIZE (settable up
to max(SZ_16K, PAGE_SIZE)), an offset in (PAGE_SIZE, inline_data_size]
makes "PAGE_SIZE - off" underflow, so sg->length is set to ~4 GiB and
the block backend reads far past the first inline page. num_pages(len)
also ignores the offset, so an in-bounds offset whose [off, off+len)
span crosses a page boundary under-counts the scatterlist.
Map the offset properly: split it into a page index and an in-page
offset, start the scatterlist at that page, and size the page count from
page_off + len. Because the request scatterlist may now start at
inline_sg[page_idx] rather than inline_sg[0], generalize the inline-SGL
identity test in nvmet_rdma_release_rsp() to a range test; otherwise the
persistent inline scatterlist is mistaken for an allocated one and
nvmet_req_free_sgls() frees an inline page (and warns in
free_large_kmalloc()).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 before c2106ba1b14d644a5203bea1a50dbe25dcad713c; 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 before bf8bcc1c137d54a62a428b00051fdbb13660673b; 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 before 11401371152b228448a41d79c6de1c938f93049a; 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 before 7c96581169c9d9a7d0726e554313acfbead6141c; 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 before 42a8ea3acd883f4f210d9e54e0975b1e2292b529; 0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 before 2944113ad5fbcdf5d349d857c03d2a44b6de75b8; +3 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72129
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-72129
git.kernel.org
https://git.kernel.org/stable/c/11401371152b228448a41d79c6de1c938f93049a
git.kernel.org
https://git.kernel.org/stable/c/2944113ad5fbcdf5d349d857c03d2a44b6de75b8
git.kernel.org
https://git.kernel.org/stable/c/42a8ea3acd883f4f210d9e54e0975b1e2292b529
git.kernel.org
https://git.kernel.org/stable/c/48c0162f647bb47e6084ffbc71b8f213f5e2f4f8
git.kernel.org
https://git.kernel.org/stable/c/7c96581169c9d9a7d0726e554313acfbead6141c
git.kernel.org
https://git.kernel.org/stable/c/98bcdfa619150b2f41fa15bac140dbaf2584ad05
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