{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50657","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-12-09T01:26:45.989Z","datePublished":"2025-12-09T01:29:04.968Z","dateUpdated":"2026-05-11T19:23:06.462Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:23:06.462Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: mm: add missing memcpy in kasan_init\n\nHi Atish,\n\nIt seems that the panic is due to the missing memcpy during kasan_init.\nCould you please check whether this patch is helpful?\n\nWhen doing kasan_populate, the new allocated base_pud/base_p4d should\ncontain kasan_early_shadow_{pud, p4d}'s content. Add the missing memcpy\nto avoid page fault when read/write kasan shadow region.\n\nTested on:\n - qemu with sv57 and CONFIG_KASAN on.\n - qemu with sv48 and CONFIG_KASAN on."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/riscv/mm/kasan_init.c"],"versions":[{"version":"8fbdccd2b17335e1881a23865e98c63fcc345938","lessThan":"ff0f6becf3a6f817838b6f80a2c9cca43dce0576","status":"affected","versionType":"git"},{"version":"8fbdccd2b17335e1881a23865e98c63fcc345938","lessThan":"9f2ac64d6ca60db99132e08628ac2899f956a0ec","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/riscv/mm/kasan_init.c"],"versions":[{"version":"5.18","status":"affected"},{"version":"0","lessThan":"5.18","status":"unaffected","versionType":"semver"},{"version":"6.0.7","lessThanOrEqual":"6.0.*","status":"unaffected","versionType":"semver"},{"version":"6.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.0.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ff0f6becf3a6f817838b6f80a2c9cca43dce0576"},{"url":"https://git.kernel.org/stable/c/9f2ac64d6ca60db99132e08628ac2899f956a0ec"}],"title":"riscv: mm: add missing memcpy in kasan_init","x_generator":{"engine":"bippy-1.2.0"}}}}