{"id":"CVE-2026-90300","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Clear buf on error in __bpf_get_task_stack\n\nBoth bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that\nuse __bpf_get_task_stack have buf defined as ARG_…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Clear buf on error in __bpf_get_task_stack\n\nBoth bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that\nuse __bpf_get_task_stack have buf defined as ARG_…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df < f523359c4789bb0396d2d642464a6e2fd4f2299d","Linux >= 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df < f5d242825ca417bb6afe35fde6e8880f97ca43fb","Linux d921baabd96445ef9c9c9410ca06164359c8a1a5","Linux 9c020a533eaae1c2d41a7e3835c4c818a9b4b656","Linux ff6bdc205fd0a83bd365405d4e31fb5905826996","Linux >= 5.10.30 < 5.11","Linux >= 5.11.14 < 5.12","Linux >= 5.10.96 < 5.11","Linux 5.12"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:27.503","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90300","references":[{"url":"https://git.kernel.org/stable/c/f523359c4789bb0396d2d642464a6e2fd4f2299d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f5d242825ca417bb6afe35fde6e8880f97ca43fb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.829Z","epss":0.00189,"epssPercentile":0.08813,"slug":"CVE-2026-90300","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Clear buf on error in __bpf_get_task_stack\n\nBoth bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that\nuse __bpf_get_task_stack have buf defined as ARG_PTR_TO_UNINIT_MEM\nargument and we should initialize the buf on every return path.\n\nAdding missing buf memset for __bpf_get_task_stack fail paths. This\nprovides deterministic buffer contents, which is useful when the buffer\nis used directly as a map key.\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":[]}