CVE-2023-53332

Summary

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

genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()

If ipi_send_{mask|single}() is called with an invalid interrupt number, all the local variables there will be NULL. ipi_send_verify() which is invoked from these functions does verify its 'data' parameter, resulting in a kernel oops in irq_data_get_affinity_mask() as the passed NULL pointer gets dereferenced.

Add a missing NULL pointer check in ipi_send_verify()…

Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3b8e29a82dd16c1f2061e0b955a71cd36eeb061b < 926aef60ea64cd9becf2829f7388f48dbe8bcb11affected
LinuxLinux3b8e29a82dd16c1f2061e0b955a71cd36eeb061b < 7448c73d64075051f50caed2c62f46553b69ab8aaffected
LinuxLinux3b8e29a82dd16c1f2061e0b955a71cd36eeb061b < feabecaff5902f896531dde90646ca5dfa9d4f7daffected
LinuxLinux4.6affected
LinuxLinux0 < 4.6unaffected
LinuxLinux6.1.18 <= 6.1.*unaffected
LinuxLinux6.2.5 <= 6.2.*unaffected
LinuxLinux6.3 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References