CVE-2026-74647
CVE CVE-2026-74647EUVD EUVD-2026-64584Published 2026-08-22T15:32:24.000ZLast changed 2026-08-27T12:39:52.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Remove buffer from list prior to unmap operation fastrpc_req_munmap_impl() is called to unmap any buffer. The buffer is getting removed from the list after it is unmapped from DSP. This can create potential race conditions if multiple threads invoke unmap concurrently, where one thread may remove the entry from the list while another thread's unmap operation is still ongoing. Fix this by removing the buffer entry from the list before calling the unmap operation. If the unmap fails, the entry is re-added to the list so that userspace can retry the unmap, or alternatively, the buffer will be cleaned up during device release when the DSP process is torn down and all DSP-side mappings are freed along with remaining buffers in the list.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.2; 2419e55e532de14fdf336e09e453aa2831c73a25 <fe70329055977fc1e8dc6291318d0dd75470795a; patch: 6.6.152; 2419e55e532de14fdf336e09e453aa2831c73a25 <4716c23c206a2f99ca54ebfdd8b5ba9dd0102240; 2419e55e532de14fdf336e09e453aa2831c73a25 <6102ceb4eab845743ee57acd3863fbd06e93c927; patch: 6.1.185; 2419e55e532de14fdf336e09e453aa2831c73a25 <97273624f7b356eaf8261609a75cfcb8738a165a; patch: 0; patch: 6.18.45; patch: 6.12.104; 2419e55e532de14fdf336e09e453aa2831c73a25 <1edb654b2b41baee2ab5cf418baaf6e57dfbd802; 5.5; 2419e55e532de14fdf336e09e453aa2831c73a25 <9bf22a7d950cec2d1efeca7f16bb20fcca84c36a; patch: 7.1.9; 2419e55e532de14fdf336e09e453aa2831c73a25 <0beaa9bd7eb10d9b5e6352ed5161f3f3bbd4c3c5; patch: 5.10.267; 2419e55e532de14fdf336e09e453aa2831c73a25 <99f8de36c84cb9b872157aa6c3578c2480cee4b8; patch: 5.15.218
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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