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
- 2026-03-10T21:51:11.124662Z
- 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
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50657.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8fbdccd2b17335e1881a23865e98c63fcc345938Fixedff0f6becf3a6f817838b6f80a2c9cca43dce0576Fixed9f2ac64d6ca60db99132e08628ac2899f956a0ec
Affected versions
v5.*
v5.17
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.0.1
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.1-rc1