riscv: Fix TASK_SIZE on 64-bit NOMMU
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 5.10.216, 5.15.158, 6.1.90, 6.6.30, 6.8.9
- 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
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: riscv: Fix TASK_SIZE on 64-bit NOMMU On NOMMU, userspace memory can come from anywhere in physical RAM. The current definition of TASK_SIZE is wrong if any RAM exists above 4G, causing spurious failures in the userspace access routines.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
From 6bd33e1ece528f67646db33bf97406b747dafda0 · fixed in 04bf2e5f95c1a52e28a7567a507f926efe31c3b6; From 6bd33e1ece528f67646db33bf97406b747dafda0 · fixed in 52e8a42b11078d2aad4b9ba96503d77c7299168b; From 6bd33e1ece528f67646db33bf97406b747dafda0 · fixed in 4201b8c8f2c32af321fb50867e68ac6c1cbed4be; From 6bd33e1ece528f67646db33bf97406b747dafda0 · fixed in a0f0dbbb1bc49fa0de18e92c36492ff6d804cdaa; From 6bd33e1ece528f67646db33bf97406b747dafda0 · fixed in efdcfa554b6eb228943ef1dd4d023c606be647d2; From 6bd33e1ece528f67646db33bf97406b747dafda0 · fixed in 6065e736f82c817c9a597a31ee67f0ce4628e948
- Linux Linux
5.5
- KernelLinux
From 5.5.0 · fixed in 5.10.216; From 5.11.0 · fixed in 5.15.158; From 5.16.0 · fixed in 6.1.90; From 6.2.0 · fixed in 6.6.30; From 6.7.0 · fixed in 6.8.9