{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98075","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:19:56.074Z","datePublished":"2026-09-25T10:24:14.472Z","dateUpdated":"2026-10-03T11:02:04.887Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-03T11:02:04.887Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: reject BPF_PSEUDO_FUNC reference to the main program\n\nfixups.c:jit_subprogs() rewrites BPF_PSEUDO_FUNC loads to contain real\nfunction addresses. This function is invoked from bpf_jit_subprogs()\nonly when env->subprog_cnt > 1. Meaning that for any program like\nbelow:\n\n  int main(void *ctx) {\n    void *ptr = main;\n    ...\n    bpf_timer_set_callback(..., ptr);\n    ...\n  }\n\nThe 'ptr' won't be ever converted to contain an address.\nIn combination with e.g. bpf_timer_set_callback() this would lead to a\nfunction call at a bogus address.\n\nInstead of complicating the implementation, just assume that no useful\nprogram needs main to be a sync or async callback and reject\nBPF_PSEUDO_FUNC loads for the main subprogram."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/verifier.c"],"versions":[{"version":"69c087ba6225b574afb6e505b72cb75242a3d844","lessThan":"c74750dca96f40a1adb9d334f5a3152f44b270c3","status":"affected","versionType":"git"},{"version":"69c087ba6225b574afb6e505b72cb75242a3d844","lessThan":"314c8caa9cb64ad60c5b969fe9a3e2dcdccf156f","status":"affected","versionType":"git"},{"version":"69c087ba6225b574afb6e505b72cb75242a3d844","lessThan":"8cb75f7ada25b1cf25f2f74dec3ba649b9064a09","status":"affected","versionType":"git"},{"version":"69c087ba6225b574afb6e505b72cb75242a3d844","lessThan":"118212417ba0120d99f84154799f8880f07411f4","status":"affected","versionType":"git"},{"version":"69c087ba6225b574afb6e505b72cb75242a3d844","lessThan":"d6c39774ae093c9f7009cc4ae918f18fc1af7ae7","status":"affected","versionType":"git"},{"version":"69c087ba6225b574afb6e505b72cb75242a3d844","lessThan":"92f0bd0e2b632c6565ac2214a4d7d2ed37e5b9f6","status":"affected","versionType":"git"},{"version":"69c087ba6225b574afb6e505b72cb75242a3d844","lessThan":"374b2c5561db80fcdd7cdce44af37a49416f61c7","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/verifier.c"],"versions":[{"version":"5.13","status":"affected"},{"version":"0","lessThan":"5.13","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.111","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.53","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.7","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc2","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":"5.13","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"7.2.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"7.3-rc2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c74750dca96f40a1adb9d334f5a3152f44b270c3"},{"url":"https://git.kernel.org/stable/c/314c8caa9cb64ad60c5b969fe9a3e2dcdccf156f"},{"url":"https://git.kernel.org/stable/c/8cb75f7ada25b1cf25f2f74dec3ba649b9064a09"},{"url":"https://git.kernel.org/stable/c/118212417ba0120d99f84154799f8880f07411f4"},{"url":"https://git.kernel.org/stable/c/d6c39774ae093c9f7009cc4ae918f18fc1af7ae7"},{"url":"https://git.kernel.org/stable/c/92f0bd0e2b632c6565ac2214a4d7d2ed37e5b9f6"},{"url":"https://git.kernel.org/stable/c/374b2c5561db80fcdd7cdce44af37a49416f61c7"}],"title":"bpf: reject BPF_PSEUDO_FUNC reference to the main program","x_generator":{"engine":"bippy-1.2.0"}}}}