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CVE-2026-31483

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cc3c2831759ab69f136eecfb366f0557899a09ebf85de59170de313e46219d87
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/s390/kernel/syscall.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3c3b97064764899c39a0abbd35a6caa031e70333","status":"affected","version":"56e62a73702836017564eaacd5212e4d0fa1c01d","versionType":"git"},{"lessThan":"1cb9c7bc9025c637564fabc7fcc3c9343949e310","status":"affected","version":"56e62a73702836017564eaacd5212e4d0fa1c01d","versionType":"git"},{"lessThan":"7a5260fbc6e79a1595328ec5c6aa3f937504a1f0","status":"affected","version":"56e62a7370283601756…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:83a522a5da487dfdf8549285879aedb7fdd884c265019ada007b5325c7d6bda6 · sha256:ee6fb1451c57fa86… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["arch/s390/kernel/syscall.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.12"},{"lessThan":"5.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.131","versionType":"semver"},{"less…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:83a522a5da487dfdf8549285879aedb7fdd884c265019ada007b5325c7d6bda6 · sha256:ee6fb1451c57fa86… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/s390/kernel/syscall.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3c3b97064764899c39a0abbd35a6caa031e70333","status":"affected","version":"56e62a73702836017564eaacd5212e4d0fa1c01d","versionType":"git"},{"lessThan":"1cb9c7bc9025c637564fabc7fcc3c9343949e310","status":"affected","version":"56e62a73702836017564eaacd5212e4d0fa1c01d","versionType":"git"},{"lessThan":"7a5260fbc6e79a1595328ec5c6aa3f937504a1f0","status":"affected","version":"56e62a7370283601756…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:83a522a5da487dfdf8549285879aedb7fdd884c265019ada007b5325c7d6bda6 · sha256:ee6fb1451c57fa86… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/s390/kernel/syscall.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.12"},{"lessThan":"5.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.131","versionType":"semver"},{"less…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:83a522a5da487dfdf8549285879aedb7fdd884c265019ada007b5325c7d6bda6 · sha256:ee6fb1451c57fa86… · /containers/cna/affected/1

Source references

7 source assertions
{"url":"https://git.kernel.org/stable/c/1cb9c7bc9025c637564fabc7fcc3c9343949e310"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:83a522a5da487dfdf8549285879aedb7fdd884c265019ada007b5325c7d6bda6 · sha256:ee6fb1451c57fa86… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/3c3b97064764899c39a0abbd35a6caa031e70333"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:83a522a5da487dfdf8549285879aedb7fdd884c265019ada007b5325c7d6bda6 · sha256:ee6fb1451c57fa86… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/48b8814e25d073dd84daf990a879a820bad2bcbd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:83a522a5da487dfdf8549285879aedb7fdd884c265019ada007b5325c7d6bda6 · sha256:ee6fb1451c57fa86… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/4d05dd18d867d58c6952a3bc260d244899da7256"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:83a522a5da487dfdf8549285879aedb7fdd884c265019ada007b5325c7d6bda6 · sha256:ee6fb1451c57fa86… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/7a5260fbc6e79a1595328ec5c6aa3f937504a1f0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:83a522a5da487dfdf8549285879aedb7fdd884c265019ada007b5325c7d6bda6 · sha256:ee6fb1451c57fa86… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/87776f02449e3bded95b2ccbd6b012e9ae64e6f3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:83a522a5da487dfdf8549285879aedb7fdd884c265019ada007b5325c7d6bda6 · sha256:ee6fb1451c57fa86… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/f8c444b918d639e1f9a621ee20fe481c1d10dfc4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:83a522a5da487dfdf8549285879aedb7fdd884c265019ada007b5325c7d6bda6 · sha256:ee6fb1451c57fa86… · /containers/cna/references/3

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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