CVE-2026-53159
misc: fastrpc: fix DMA address corruption due to find_vma misuse
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 5.2
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix DMA address corruption due to find_vma misuse fastrpc_get_args() uses find_vma() to look up the VMA for a user-provided pointer and compute a DMA address offset. When the address falls in a gap before the returned VMA, (ptr & PAGE_MASK) - vma->vm_start underflows, corrupting the DMA address sent to the DSP. Replace find_vma() with vma_lookup(), which returns NULL when the address is not contained within any VMA.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 5.1.6 · fixed in 5.2
- Linux Linux
5.2
References 8
git.kernel.org
- stable/c/d43afc412d439ffca1567e7ca8652be22f272b3b
- stable/c/2d0f47e27c1fa718b29c69aa7c96a2c5161bc2c2
- stable/c/708c17b52c60fe7a57e73b495bdee50f58feb48c
- stable/c/d3e26df2e8eb361e6bef096b2fd565476a1f14c4
- stable/c/e69e306a4cccb40a73511350cb280825a556ce3c
- stable/c/53e06f8a3c2b085c31bf1284e2ebcb8036e99625
- stable/c/7ba7b30ddb04646d4d638f4d8c4718a304bbbddd
- stable/c/464c6ad2aa16e1e1df9d559289199356493d1e00