{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90300","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.799Z","datePublished":"2026-09-17T16:08:24.515Z","dateUpdated":"2026-09-17T16:08:24.515Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:08:24.515Z"},"descriptions":[{"lang":"en","value":"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_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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/stackmap.c"],"versions":[{"version":"06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df","lessThan":"f523359c4789bb0396d2d642464a6e2fd4f2299d","status":"affected","versionType":"git"},{"version":"06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df","lessThan":"f5d242825ca417bb6afe35fde6e8880f97ca43fb","status":"affected","versionType":"git"},{"version":"d921baabd96445ef9c9c9410ca06164359c8a1a5","status":"affected","versionType":"git"},{"version":"9c020a533eaae1c2d41a7e3835c4c818a9b4b656","status":"affected","versionType":"git"},{"version":"ff6bdc205fd0a83bd365405d4e31fb5905826996","status":"affected","versionType":"git"},{"version":"5.10.30","lessThan":"5.11","status":"affected","versionType":"semver"},{"version":"5.11.14","lessThan":"5.12","status":"affected","versionType":"semver"},{"version":"5.10.96","lessThan":"5.11","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/stackmap.c"],"versions":[{"version":"5.12","status":"affected"},{"version":"0","lessThan":"5.12","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"7.3-rc1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.96"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/f523359c4789bb0396d2d642464a6e2fd4f2299d"},{"url":"https://git.kernel.org/stable/c/f5d242825ca417bb6afe35fde6e8880f97ca43fb"}],"title":"bpf: Clear buf on error in __bpf_get_task_stack","x_generator":{"engine":"bippy-1.2.0"}}}}