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CVE-2026-43258

In the Linux kernel, the following vulnerability has been resolved: alpha: fix user-space corruption during memory compaction Alpha systems can suffer sporadic user-space crashes and heap corruption when memory compaction is enabled. Symptoms include SIGSEGV, glibc allocator failures (e.g. "unaligned tcache chunk"), and compiler internal errors. The failures disappear when compaction is disabled or when using global TLB invalidation. The root cause is insufficient TLB shootdown during page m
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:803e931323bec6d87cb9213c97e2d3c46d78e394cfb1ce87cdbf80ba3edd679e
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/alpha/include/asm/pgtable.h","arch/alpha/include/asm/tlbflush.h","arch/alpha/mm/Makefile","arch/alpha/mm/tlbflush.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d4ca6ca2c6f5a1d19d9014c5b36d96637846b5d6","status":"affected","version":"a48d07afdf18212de22b959715b16793c5a6e57a","versionType":"git"},{"lessThan":"03e42b5f7ad4c2c3db8bd384bab7990d5d53c90f","status":"affected","version":"a48d07afdf18212de22b959715b16793c5a6e57a","versionType":"git"},{"lessThan"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f8063bb5e2968665cba6c258a04c347ea9ca094b26488a1549294240886ead15 · sha256:d8f8b4db1510cf71… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["arch/alpha/include/asm/pgtable.h","arch/alpha/include/asm/tlbflush.h","arch/alpha/mm/Makefile","arch/alpha/mm/tlbflush.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.16"},{"lessThan":"2.6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.16","versionType":"semver"},{…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f8063bb5e2968665cba6c258a04c347ea9ca094b26488a1549294240886ead15 · sha256:d8f8b4db1510cf71… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/alpha/include/asm/pgtable.h","arch/alpha/include/asm/tlbflush.h","arch/alpha/mm/Makefile","arch/alpha/mm/tlbflush.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d4ca6ca2c6f5a1d19d9014c5b36d96637846b5d6","status":"affected","version":"a48d07afdf18212de22b959715b16793c5a6e57a","versionType":"git"},{"lessThan":"03e42b5f7ad4c2c3db8bd384bab7990d5d53c90f","status":"affected","version":"a48d07afdf18212de22b959715b16793c5a6e57a","versionType":"git"},{"lessThan"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f8063bb5e2968665cba6c258a04c347ea9ca094b26488a1549294240886ead15 · sha256:d8f8b4db1510cf71… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/alpha/include/asm/pgtable.h","arch/alpha/include/asm/tlbflush.h","arch/alpha/mm/Makefile","arch/alpha/mm/tlbflush.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.16"},{"lessThan":"2.6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.16","versionType":"semver"},{…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f8063bb5e2968665cba6c258a04c347ea9ca094b26488a1549294240886ead15 · sha256:d8f8b4db1510cf71… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f8063bb5e2968665cba6c258a04c347ea9ca094b26488a1549294240886ead15 · sha256:d8f8b4db1510cf71… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/03e42b5f7ad4c2c3db8bd384bab7990d5d53c90f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f8063bb5e2968665cba6c258a04c347ea9ca094b26488a1549294240886ead15 · sha256:d8f8b4db1510cf71… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/bab8d762a8dbb816b10011e13b87d1bca91e5f77"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f8063bb5e2968665cba6c258a04c347ea9ca094b26488a1549294240886ead15 · sha256:d8f8b4db1510cf71… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/d4ca6ca2c6f5a1d19d9014c5b36d96637846b5d6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f8063bb5e2968665cba6c258a04c347ea9ca094b26488a1549294240886ead15 · sha256:d8f8b4db1510cf71… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/dd5712f3379cfe760267cdd28ff957d9ab4e51c7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f8063bb5e2968665cba6c258a04c347ea9ca094b26488a1549294240886ead15 · sha256:d8f8b4db1510cf71… · /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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