CVE-2024-43821

Summary

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

scsi: lpfc: Fix a possible null pointer dereference

In function lpfc_xcvr_data_show, the memory allocation with kmalloc might fail, thereby making rdp_context a null pointer. In the following context and functions that use this pointer, there are dereferencing operations, leading to null pointer dereference.

To fix this issue, a null pointer check should be added. If it is null, use scnprintf to notify the user and return len.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux479b0917e4477f49df2e3be454aac3cfa5dec171 < 57600a7dd2b52c904f7c8d2cac0fd8c23868e680affected
LinuxLinux479b0917e4477f49df2e3be454aac3cfa5dec171 < 45b2a23e00d448a9e6d1f371ca3a4d4b073fe78caffected
LinuxLinux479b0917e4477f49df2e3be454aac3cfa5dec171 < 5e0bf3e8aec2cbc51123f84b29aaacbd91fc56faaffected
LinuxLinux6.2affected
LinuxLinux0 < 6.2unaffected
LinuxLinux6.6.44 <= 6.6.*unaffected
LinuxLinux6.10.3 <= 6.10.*unaffected
LinuxLinux6.11 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References