CVE-2026-89606High· 7.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: ecryptfs: reject too-small tag 70 packets ecryptfs_parse_tag_70_packet() subtracts fixed metadata fields from the parsed packet body size to derive the encrypted filen…
▾ 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
none → medium
— → 4.7
none → medium
— → 7.8
none → high
7.8 → 4.7
high → medium
4.7 → 7.8
medium → high
7.8 → 7
0.2% → 0.2%
Last analysed / modified upstream
7 → 7.8
In the Linux kernel, the following vulnerability has been resolved:
ecryptfs: reject too-small tag 70 packets
ecryptfs_parse_tag_70_packet() subtracts fixed metadata fields from the parsed packet body size to derive the encrypted filename size. A malformed packet with a body smaller than those fixed fields can underflow that size calculation.
Reject tag 70 packets before the subtraction unless the body contains the signature, cipher code, and at least one byte of encrypted filename data.
Linux >= 9c79f34f7ee71cd28272332b424ca64b2be006ab < df5f375a6151ef71f636da044bcef90c26697255Linux >= 9c79f34f7ee71cd28272332b424ca64b2be006ab < 5668121974eb7f7aa82793a9d0d13abadb8904dcLinux >= 9c79f34f7ee71cd28272332b424ca64b2be006ab < 2e5afed9503dd1d85004c09503adc2cb584c0188Linux >= 9c79f34f7ee71cd28272332b424ca64b2be006ab < 414a0f04feb06f03523edf7e2a8be1d7f1a9b160Linux >= 9c79f34f7ee71cd28272332b424ca64b2be006ab < 9d88391bbed76eb091cddd50b0af87b1c6f22589Linux >= 9c79f34f7ee71cd28272332b424ca64b2be006ab < b31da1ecf13929a8d7f8d2727843d2fe35396b75Linux >= 9c79f34f7ee71cd28272332b424ca64b2be006ab < d2869768eab5648e6edc05f47e0716e5328e6681Linux >= 9c79f34f7ee71cd28272332b424ca64b2be006ab < e97bbe1b2bd82ec2ae37ad2e4965b4d3e78bbf7fLinux 2.6.29Refer 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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