CVE-2023-53380

Summary

In the Linux kernel, the following vulnerability has been resolved:

md/raid10: fix null-ptr-deref of mreplace in raid10_sync_request

There are two check of 'mreplace' in raid10_sync_request(). In the first check, 'need_replace' will be set and 'mreplace' will be used later if no-Faulty 'mreplace' exists, In the second check, 'mreplace' will be set to NULL if it is Faulty, but 'need_replace' will not be changed accordingly. null-ptr-deref occurs if Faulty is set between two check.

Fix it by merging two checks into one. And replace 'need_replace' with 'mreplace' because their values are always the same.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxee37d7314a32ab6809eacc3389bad0406c69a81f < 45fa023b3334a7ae6f6c4eb977295804222dfa28affected
LinuxLinuxee37d7314a32ab6809eacc3389bad0406c69a81f < 2990e2ece18dd4cca71b3109c80517ad94adb065affected
LinuxLinuxee37d7314a32ab6809eacc3389bad0406c69a81f < f4368a462b1f9a8ecc2fdb09a28c3d4cad302a4faffected
LinuxLinuxee37d7314a32ab6809eacc3389bad0406c69a81f < 222cc459d59857ee28a5366dc225ab42b22f9272affected
LinuxLinuxee37d7314a32ab6809eacc3389bad0406c69a81f < b5015b97adda6a24dd3e713c63e521ecbeff25c6affected
LinuxLinuxee37d7314a32ab6809eacc3389bad0406c69a81f < 144c7fd008e0072b0b565f1157eec618de54ca8aaffected
LinuxLinuxee37d7314a32ab6809eacc3389bad0406c69a81f < 34817a2441747b48e444cb0e05d84e14bc9443daaffected
LinuxLinux4.20affected
LinuxLinux0 < 4.20unaffected
LinuxLinux5.4.251 <= 5.4.*unaffected
LinuxLinux5.10.188 <= 5.10.*unaffected
LinuxLinux5.15.121 <= 5.15.*unaffected
LinuxLinux6.1.39 <= 6.1.*unaffected
LinuxLinux6.3.13 <= 6.3.*unaffected
LinuxLinux6.4.4 <= 6.4.*unaffected
LinuxLinux6.5 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References