CVE-2026-31483
s390/syscalls: Add spectre boundary for syscall dispatch table
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: s390/syscalls: Add spectre boundary for syscall dispatch table The s390 syscall number is directly controlled by userspace, but does not have an array_index_nospec() boundary to prevent access past the syscall function pointer tables.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 22, 2026 |
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Affected Versions
Linux / Linux
56e62a73702836017564eaacd5212e4d0fa1c01d < 3c3b97064764899c39a0abbd35a6caa031e70333 56e62a73702836017564eaacd5212e4d0fa1c01d < 1cb9c7bc9025c637564fabc7fcc3c9343949e310 56e62a73702836017564eaacd5212e4d0fa1c01d < 7a5260fbc6e79a1595328ec5c6aa3f937504a1f0 56e62a73702836017564eaacd5212e4d0fa1c01d < f8c444b918d639e1f9a621ee20fe481c1d10dfc4 56e62a73702836017564eaacd5212e4d0fa1c01d < 87776f02449e3bded95b2ccbd6b012e9ae64e6f3 56e62a73702836017564eaacd5212e4d0fa1c01d < 4d05dd18d867d58c6952a3bc260d244899da7256 56e62a73702836017564eaacd5212e4d0fa1c01d < 48b8814e25d073dd84daf990a879a820bad2bcbd
Linux / Linux
5.12
References
git.kernel.org: https://git.kernel.org/stable/c/3c3b97064764899c39a0abbd35a6caa031e70333 git.kernel.org: https://git.kernel.org/stable/c/1cb9c7bc9025c637564fabc7fcc3c9343949e310 git.kernel.org: https://git.kernel.org/stable/c/7a5260fbc6e79a1595328ec5c6aa3f937504a1f0 git.kernel.org: https://git.kernel.org/stable/c/f8c444b918d639e1f9a621ee20fe481c1d10dfc4 git.kernel.org: https://git.kernel.org/stable/c/87776f02449e3bded95b2ccbd6b012e9ae64e6f3 git.kernel.org: https://git.kernel.org/stable/c/4d05dd18d867d58c6952a3bc260d244899da7256 git.kernel.org: https://git.kernel.org/stable/c/48b8814e25d073dd84daf990a879a820bad2bcbd