CVE-2026-72129

In the Linux kernel, the following vulnerability has been resolved:

nvmet-rdma: handle inline data with a nonzero offset

nvmetrdmauseinlinesg() maps the host-controlled inline data offset

into the per-command inline scatterlist.  The bounds check admits any

offset with off + len <= inlinedatasize, but the mapping still assumes

the data begins in the first inline page:

sg->offset = off;

sg->length = mint(int, len, PAGESIZE - off);

When a port is configured with inlinedatasize > PAGE_SIZE (settable up

to max(SZ16K, PAGESIZE)), an offset in (PAGESIZE, inlinedata_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

inlinesg[pageidx] rather than inline_sg[0], generalize the inline-SGL

identity test in nvmetrdmarelease_rsp() to a range test; otherwise the

persistent inline scatterlist is mistaken for an allocated one and

nvmetreqfree_sgls() frees an inline page (and warns in

freelargekmalloc()).