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CVE-2026-63810

In the Linux kernel, the following vulnerability has been resolved: block: Avoid mounting the bdev pseudo-filesystem in userspace The bdev pseudo-filesystem is an internal kernel filesystem with which userspace should not interfere. Unregister it so that userspace cannot even attempt to mount it. This fixes a bug [1] that occurs when attempting to access files, because the system call move_mount() uses pointers declared in the inode_operations structure, which for the bdev pseudo-filesystem a
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c12cb3fe711f22affe21059772a3cd216c4e6202afb756921870669ace23332e
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":["block/bdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqua…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0135c7f3c970e024f1efdb785078c7e0a5722153b5ca32206d450998048706d4 · sha256:8e229c01f4d0496d… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["block/bdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3d3fcf23993bb756de2f912ab631cfdcc4746554","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"99cde0a7b1e98fd3970aabef1300918e91698dd5","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"1a02a5028bd6dead1f8503854ef3168d651cd417","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0135c7f3c970e024f1efdb785078c7e0a5722153b5ca32206d450998048706d4 · sha256:8e229c01f4d0496d… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["block/bdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqua…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0135c7f3c970e024f1efdb785078c7e0a5722153b5ca32206d450998048706d4 · sha256:8e229c01f4d0496d… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["block/bdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3d3fcf23993bb756de2f912ab631cfdcc4746554","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"99cde0a7b1e98fd3970aabef1300918e91698dd5","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"1a02a5028bd6dead1f8503854ef3168d651cd417","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0135c7f3c970e024f1efdb785078c7e0a5722153b5ca32206d450998048706d4 · sha256:8e229c01f4d0496d… · /containers/cna/affected/0

Source references

7 source assertions
{"url":"https://git.kernel.org/stable/c/197971e6ffc0a6356b2ba2b22beb42bc0f7e412d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0135c7f3c970e024f1efdb785078c7e0a5722153b5ca32206d450998048706d4 · sha256:8e229c01f4d0496d… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/1a02a5028bd6dead1f8503854ef3168d651cd417"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0135c7f3c970e024f1efdb785078c7e0a5722153b5ca32206d450998048706d4 · sha256:8e229c01f4d0496d… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/3804e6de30ae7b053d53341d9d6944356cf23b40"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0135c7f3c970e024f1efdb785078c7e0a5722153b5ca32206d450998048706d4 · sha256:8e229c01f4d0496d… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/3d3fcf23993bb756de2f912ab631cfdcc4746554"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0135c7f3c970e024f1efdb785078c7e0a5722153b5ca32206d450998048706d4 · sha256:8e229c01f4d0496d… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/717f721eb67d2dacd3ed5f7495aef2f442e84ce4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0135c7f3c970e024f1efdb785078c7e0a5722153b5ca32206d450998048706d4 · sha256:8e229c01f4d0496d… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/99cde0a7b1e98fd3970aabef1300918e91698dd5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0135c7f3c970e024f1efdb785078c7e0a5722153b5ca32206d450998048706d4 · sha256:8e229c01f4d0496d… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/f73aa66dffcb8e61e78f01b56163ec16a15d06d2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0135c7f3c970e024f1efdb785078c7e0a5722153b5ca32206d450998048706d4 · sha256:8e229c01f4d0496d… · /containers/cna/references/6

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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