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CVE-2026-46268

In the Linux kernel, the following vulnerability has been resolved: PCI/P2PDMA: Fix p2pmem_alloc_mmap() warning condition Commit b7e282378773 has already changed the initial page refcount of p2pdma page from one to zero, however, in p2pmem_alloc_mmap() it uses "VM_WARN_ON_ONCE_PAGE(!page_ref_count(page))" to assert the initial page refcount should not be zero and the following will be reported when CONFIG_DEBUG_VM is enabled: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pf
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b87975a3ff4fbf9cd2a795a182f7d56cad9aab122cb0b02fe477447de5ef36f3
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":["drivers/pci/p2pdma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0bb9f844d9a55251c677fadef0b73589fa279bde2a928b72b91375e601db53d3 · sha256:6cbf0178b0bb2511… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/pci/p2pdma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"eb9aa9f8010465d927864f5a35bdc5604b0ff51a","status":"affected","version":"b7e2823787735ca009e63f35f164b46df0ef096c","versionType":"git"},{"lessThan":"9b69243983fb2f4d4d1f4ef0989bc1296547dc2c","status":"affected","version":"b7e2823787735ca009e63f35f164b46df0ef096c","versionType":"git"},{"lessThan":"cb500023a75246f60b79af9f7321d6e75330c5b5","status":"affected","version":"b7e2823787735ca009e63f35f…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0bb9f844d9a55251c677fadef0b73589fa279bde2a928b72b91375e601db53d3 · sha256:6cbf0178b0bb2511… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/pci/p2pdma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0bb9f844d9a55251c677fadef0b73589fa279bde2a928b72b91375e601db53d3 · sha256:6cbf0178b0bb2511… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/pci/p2pdma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"eb9aa9f8010465d927864f5a35bdc5604b0ff51a","status":"affected","version":"b7e2823787735ca009e63f35f164b46df0ef096c","versionType":"git"},{"lessThan":"9b69243983fb2f4d4d1f4ef0989bc1296547dc2c","status":"affected","version":"b7e2823787735ca009e63f35f164b46df0ef096c","versionType":"git"},{"lessThan":"cb500023a75246f60b79af9f7321d6e75330c5b5","status":"affected","version":"b7e2823787735ca009e63f35f…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0bb9f844d9a55251c677fadef0b73589fa279bde2a928b72b91375e601db53d3 · sha256:6cbf0178b0bb2511… · /containers/cna/affected/0

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/9b69243983fb2f4d4d1f4ef0989bc1296547dc2c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0bb9f844d9a55251c677fadef0b73589fa279bde2a928b72b91375e601db53d3 · sha256:6cbf0178b0bb2511… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/cb500023a75246f60b79af9f7321d6e75330c5b5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0bb9f844d9a55251c677fadef0b73589fa279bde2a928b72b91375e601db53d3 · sha256:6cbf0178b0bb2511… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/eb9aa9f8010465d927864f5a35bdc5604b0ff51a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0bb9f844d9a55251c677fadef0b73589fa279bde2a928b72b91375e601db53d3 · sha256:6cbf0178b0bb2511… · /containers/cna/references/0

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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