CVE-2026-89584High· 7.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: block: validate user space vectors during extraction The bio-based drivers don't necessarily check the alignment split, and stacking block drivers don't always handle …
▾ 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 Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
— → 4.7
— → 7.8
none → high
7.8 → 4.7
high → medium
4.7 → 7.8
medium → high
7.8 → 4.7
high → medium
4.7 → 7
medium → high
Last analysed / modified upstream
7 → 7.8
In the Linux kernel, the following vulnerability has been resolved:
block: validate user space vectors during extraction
The bio-based drivers don't necessarily check the alignment split, and stacking block drivers don't always handle a misalignment detected after submitting the bio. Validate user vectors against the device's dma_alignment as the bio is built from the iov_iter, rejecting misaligned early with -EINVAL.
Linux >= 5ff3f74e145adc79b49668adb8de276446acf6be < d44a97a3b1c00cc571245124e23e5ceb0a0225a0Linux >= 5ff3f74e145adc79b49668adb8de276446acf6be < 14b007e178811db72fbb1ebb3535160db6ec1e6aLinux 6.18Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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