{"id":"CVE-2026-43148","title":"powerpc/smp: Add check for kcalloc() failure in parse_thread_groups()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/smp: Add check for kcalloc() failure in parse_thread_groups()\n\nAs kcalloc() may fail, check its return value to avoid a NULL pointer\ndereference when passing it…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < 1de31dba19c3cd0c1caf388a286b46df638f0b91","Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < b265e53d9adfbb5751713185843f7188aa9dd066","Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < 9d0ca11258e7b452653d04310addfec1753de1a2","Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < ca46d2092f307385a7acfb42632056570d6dbbbc","Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < 9b85c8f624b0f8cf9b932f5a65dacd56a1f47a72","Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < 8b221db0b7d24675e465e98d9326d298025a4e8d","Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < 33c1c6d8a28a2761ac74b0380b2563cf546c2a3a","Linux 5.11"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T15:29:41.722516Z"},"published":"2026-05-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T15:32:33.862Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43148","references":[{"url":"https://git.kernel.org/stable/c/1de31dba19c3cd0c1caf388a286b46df638f0b91"},{"url":"https://git.kernel.org/stable/c/b265e53d9adfbb5751713185843f7188aa9dd066"},{"url":"https://git.kernel.org/stable/c/9d0ca11258e7b452653d04310addfec1753de1a2"},{"url":"https://git.kernel.org/stable/c/ca46d2092f307385a7acfb42632056570d6dbbbc"},{"url":"https://git.kernel.org/stable/c/9b85c8f624b0f8cf9b932f5a65dacd56a1f47a72"},{"url":"https://git.kernel.org/stable/c/8b221db0b7d24675e465e98d9326d298025a4e8d"},{"url":"https://git.kernel.org/stable/c/33c1c6d8a28a2761ac74b0380b2563cf546c2a3a"}],"tags":["cve.org"],"epss":0.00128,"epssPercentile":0.02472,"ingestedAt":"2026-11-06T15:54:04.010Z","slug":"CVE-2026-43148","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/smp: Add check for kcalloc() failure in parse_thread_groups()\n\nAs kcalloc() may fail, check its return value to avoid a NULL pointer\ndereference when passing it to of_property_read_u32_array().\n\n## Affected\n\n- `Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < 1de31dba19c3cd0c1caf388a286b46df638f0b91`\n- `Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < b265e53d9adfbb5751713185843f7188aa9dd066`\n- `Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < 9d0ca11258e7b452653d04310addfec1753de1a2`\n- `Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < ca46d2092f307385a7acfb42632056570d6dbbbc`\n- `Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < 9b85c8f624b0f8cf9b932f5a65dacd56a1f47a72`\n- `Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < 8b221db0b7d24675e465e98d9326d298025a4e8d`\n- `Linux >= 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 < 33c1c6d8a28a2761ac74b0380b2563cf546c2a3a`\n- `Linux 5.11`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}