CVE-2026-43148 PUBLISHED

powerpc/smp: Add check for kcalloc() failure in parse_thread_groups()

Assigner: Linux
Reserved: 01.05.2026 Published: 06.05.2026 Updated: 06.05.2026

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

powerpc/smp: Add check for kcalloc() failure in parse_thread_groups()

As kcalloc() may fail, check its return value to avoid a NULL pointer dereference when passing it to of_property_read_u32_array().

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 to 1de31dba19c3cd0c1caf388a286b46df638f0b91 (excl.)
  • affected from 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 to b265e53d9adfbb5751713185843f7188aa9dd066 (excl.)
  • affected from 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 to 9d0ca11258e7b452653d04310addfec1753de1a2 (excl.)
  • affected from 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 to ca46d2092f307385a7acfb42632056570d6dbbbc (excl.)
  • affected from 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 to 9b85c8f624b0f8cf9b932f5a65dacd56a1f47a72 (excl.)
  • affected from 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 to 8b221db0b7d24675e465e98d9326d298025a4e8d (excl.)
  • affected from 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 to 33c1c6d8a28a2761ac74b0380b2563cf546c2a3a (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.11 is affected
  • unaffected from 0 to 5.11 (excl.)
  • unaffected from 5.15.202 to 5.15.* (incl.)
  • unaffected from 6.1.165 to 6.1.* (incl.)
  • unaffected from 6.6.128 to 6.6.* (incl.)
  • unaffected from 6.12.75 to 6.12.* (incl.)
  • unaffected from 6.18.16 to 6.18.* (incl.)
  • unaffected from 6.19.6 to 6.19.* (incl.)
  • unaffected from 7.0 to * (incl.)

References