{"id":"CVE-2026-31483","summary":"s390/syscalls: Add spectre boundary for syscall dispatch table","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/syscalls: Add spectre boundary for syscall dispatch table\n\nThe s390 syscall number is directly controlled by userspace, but does\nnot have an array_index_nospec() boundary to prevent access past the\nsyscall function pointer tables.","modified":"2026-07-11T03:55:37.878986153Z","published":"2026-04-22T13:54:09.561Z","related":["SUSE-SU-2026:22043-1","SUSE-SU-2026:22048-1","SUSE-SU-2026:22076-1","SUSE-SU-2026:22087-1","openSUSE-SU-2026:20912-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31483.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1cb9c7bc9025c637564fabc7fcc3c9343949e310"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3c3b97064764899c39a0abbd35a6caa031e70333"},{"type":"WEB","url":"https://git.kernel.org/stable/c/48b8814e25d073dd84daf990a879a820bad2bcbd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4d05dd18d867d58c6952a3bc260d244899da7256"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7a5260fbc6e79a1595328ec5c6aa3f937504a1f0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/87776f02449e3bded95b2ccbd6b012e9ae64e6f3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f8c444b918d639e1f9a621ee20fe481c1d10dfc4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31483.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31483"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"56e62a73702836017564eaacd5212e4d0fa1c01d"},{"fixed":"3c3b97064764899c39a0abbd35a6caa031e70333"},{"fixed":"1cb9c7bc9025c637564fabc7fcc3c9343949e310"},{"fixed":"7a5260fbc6e79a1595328ec5c6aa3f937504a1f0"},{"fixed":"f8c444b918d639e1f9a621ee20fe481c1d10dfc4"},{"fixed":"87776f02449e3bded95b2ccbd6b012e9ae64e6f3"},{"fixed":"4d05dd18d867d58c6952a3bc260d244899da7256"},{"fixed":"48b8814e25d073dd84daf990a879a820bad2bcbd"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31483.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.12.0"},{"fixed":"5.15.203"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.168"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.131"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.80"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.21"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31483.json"}}],"schema_version":"1.7.5"}