CVE-2022-50657
- Source
- https://cve.org/CVERecord?id=CVE-2022-50657
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50657.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-50657
- Downstream
- Published
- 2025-12-09T01:29:04.968Z
- Modified
- 2026-04-02T08:28:41.206294Z
- Summary
- riscv: mm: add missing memcpy in kasan_init
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
riscv: mm: add missing memcpy in kasan_init
Hi Atish,
It seems that the panic is due to the missing memcpy during kasan_init. Could you please check whether this patch is helpful?
When doing kasanpopulate, the new allocated basepud/basep4d should contain kasanearlyshadow{pud, p4d}'s content. Add the missing memcpy to avoid page fault when read/write kasan shadow region.
Tested on: - qemu with sv57 and CONFIGKASAN on. - qemu with sv48 and CONFIGKASAN on.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50657.json" }- References
-
- https://git.kernel.org/stable/c/9f2ac64d6ca60db99132e08628ac2899f956a0ec
- https://git.kernel.org/stable/c/ff0f6becf3a6f817838b6f80a2c9cca43dce0576
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50657.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-50657
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git