CVE 2020-29368
An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.
Related bugs and status
CVE-2020-29368 (Candidate) is related to these bugs:
Bug #1908499: udpgro.sh in net from ubuntu_kernel_selftests seems not reflecting sub-test result
Bug #1909453: S3 stress test fails with amdgpu errors
| Summary | In | Importance | Status | |||
|---|---|---|---|---|---|---|
| 1909453 | S3 stress test fails with amdgpu errors | linux-oem-5.6 (Ubuntu) | Undecided | Invalid | ||
| 1909453 | S3 stress test fails with amdgpu errors | linux-oem-5.6 (Ubuntu Focal) | Undecided | Fix Released | ||
| 1909453 | S3 stress test fails with amdgpu errors | HWE Next | Undecided | Fix Released | ||
Bug #1913153: focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker
| Summary | In | Importance | Status | |||
|---|---|---|---|---|---|---|
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow automated-testing | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow certification-testing | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow kernel-signoff | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow prepare-package | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow prepare-package-lrm | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow prepare-package-meta | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow prepare-package-signed | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow promote-to-proposed | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow promote-to-security | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow promote-to-updates | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow regression-testing | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow security-signoff | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | Kernel SRU Workflow verification-testing | Medium | Fix Released | ||
| 1913153 | focal/linux-oem-5.6: 5.6.0-1048.52 -proposed tracker | linux-oem-5.6 (Ubuntu Focal) | Medium | Fix Released | ||
See the 
CVE page on Mitre.org
for more details.
