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CVE-2026-43472

In the Linux kernel, the following vulnerability has been resolved: unshare: fix unshare_fs() handling There's an unpleasant corner case in unshare(2), when we have a CLONE_NEWNS in flags and current->fs hadn't been shared at all; in that case copy_mnt_ns() gets passed current->fs instead of a private copy, which causes interesting warts in proof of correctness] > I guess if private means fs->users == 1, the condition could still be true. Unfortunately, it's worse than just a convoluted proo
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8176d792426d415f0ce2481a58d86d098a0a39ab46b10cdd0a388d8ce92d6ab2
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":"affected","product":"Linux","programFiles":["kernel/fork.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":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrE…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:17535c5a383fd098279a4f5694f83e362f0186b4f6e902c7e458b3e860e9c064 · sha256:61af6f464baef35e… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/fork.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"845bf3c6963a52096d0d3866e4a92db77a0c03d8","status":"affected","version":"741a295130606143edbf9fc740f633dbc1e6225f","versionType":"git"},{"lessThan":"d3ffc8f13034af895531a02c30b1fe3a34b46432","status":"affected","version":"741a295130606143edbf9fc740f633dbc1e6225f","versionType":"git"},{"lessThan":"d0d99f60538ddb4a62ccaac2168d8f448965f083","status":"affected","version":"741a295130606143edbf9fc740f633db…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:17535c5a383fd098279a4f5694f83e362f0186b4f6e902c7e458b3e860e9c064 · sha256:61af6f464baef35e… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/fork.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":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrE…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:17535c5a383fd098279a4f5694f83e362f0186b4f6e902c7e458b3e860e9c064 · sha256:61af6f464baef35e… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/fork.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"845bf3c6963a52096d0d3866e4a92db77a0c03d8","status":"affected","version":"741a295130606143edbf9fc740f633dbc1e6225f","versionType":"git"},{"lessThan":"d3ffc8f13034af895531a02c30b1fe3a34b46432","status":"affected","version":"741a295130606143edbf9fc740f633dbc1e6225f","versionType":"git"},{"lessThan":"d0d99f60538ddb4a62ccaac2168d8f448965f083","status":"affected","version":"741a295130606143edbf9fc740f633db…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:17535c5a383fd098279a4f5694f83e362f0186b4f6e902c7e458b3e860e9c064 · sha256:61af6f464baef35e… · /containers/cna/affected/0

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/42e21e74061b0ebbd859839f81acf10efad02a27"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:17535c5a383fd098279a4f5694f83e362f0186b4f6e902c7e458b3e860e9c064 · sha256:61af6f464baef35e… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/6c4b2243cb6c0755159bd567130d5e12e7b10d9f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:17535c5a383fd098279a4f5694f83e362f0186b4f6e902c7e458b3e860e9c064 · sha256:61af6f464baef35e… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/845bf3c6963a52096d0d3866e4a92db77a0c03d8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:17535c5a383fd098279a4f5694f83e362f0186b4f6e902c7e458b3e860e9c064 · sha256:61af6f464baef35e… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/aa9ebc084505fb26dd90f4d7a249045aad152043"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:17535c5a383fd098279a4f5694f83e362f0186b4f6e902c7e458b3e860e9c064 · sha256:61af6f464baef35e… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/af8f4be3b68ac8caa41c8e5ead0eeaf5e85e42d0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:17535c5a383fd098279a4f5694f83e362f0186b4f6e902c7e458b3e860e9c064 · sha256:61af6f464baef35e… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/d0d99f60538ddb4a62ccaac2168d8f448965f083"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:17535c5a383fd098279a4f5694f83e362f0186b4f6e902c7e458b3e860e9c064 · sha256:61af6f464baef35e… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/d3ffc8f13034af895531a02c30b1fe3a34b46432"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:17535c5a383fd098279a4f5694f83e362f0186b4f6e902c7e458b3e860e9c064 · sha256:61af6f464baef35e… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/d7963d6997fea86a6def242ac36198b86655f912"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:17535c5a383fd098279a4f5694f83e362f0186b4f6e902c7e458b3e860e9c064 · sha256:61af6f464baef35e… · /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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