CVE-2021-47087High· 7.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: tee: optee: Fix incorrect page free bug Pointer to the allocated pages (struct page *page) has already progressed towards the end of allocation. It is incorrect to per…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
0.2% → 0.2%
In the Linux kernel, the following vulnerability has been resolved:
tee: optee: Fix incorrect page free bug
Pointer to the allocated pages (struct page *page) has already progressed towards the end of allocation. It is incorrect to perform __free_pages(page, order) using this pointer as we would free any arbitrary pages. Fix this by stop modifying the page pointer.
linux_kernel >= 5.4.140, < 5.4.169linux_kernel >= 5.10.58, < 5.10.89linux_kernel >= 5.14, < 5.15.12linux_kernel = 5.16Upgrade past the affected range:
linux_kernel 5.15.12Connected by shared product, vendor, weakness, or advisory.
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