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CVE PROGRAM SOURCE RECORDUnscored

CVE-2022-50657

riscv: mm: add missing memcpy in kasan_init

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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 kasan_populate, the new allocated base_pud/base_p4d should contain kasan_early_shadow_{pud, p4d}'s content. Add the missing memcpy to avoid page fault when read/write kasan shadow region. Tested on: - qemu with sv57 and CONFIG_KASAN on. - qemu with sv48 and CONFIG_KASAN on.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 8fbdccd2b17335e1881a23865e98c63fcc345938 to < ff0f6becf3a6f817838b6f80a2c9cca43dce0576affected
  • 8fbdccd2b17335e1881a23865e98c63fcc345938 to < 9f2ac64d6ca60db99132e08628ac2899f956a0ecaffected

Linux Linux

Default version status: affected

  • 5.18affected
  • 0 to < 5.18unaffected
  • 6.0.7 to ≤ 6.0.*unaffected
  • 6.1 to ≤ *unaffected

References