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CVE-2026-53363

In the Linux kernel, the following vulnerability has been resolved: xfrm: iptfs: preserve shared-frag marker in iptfs_consume_frags() iptfs_consume_frags() transfers paged fragments from one socket buffer to another but fails to propagate the SKBFL_SHARED_FRAG flag. This is the same class of bug that was fixed in skb_try_coalesce() for CVE-2026-46300: when fragments backed by read-only page-cache pages are merged, the marker indicating their shared nature must be preserved so that ESP can deci
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2d8748c840311e25587f6866f720ddc537e3dfb26b5877ff20595cdfc2bb2877
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":["net/xfrm/xfrm_iptfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"dd66f7f6e360ee82cd905517726f8e9091265de5","status":"affected","version":"b96ba312e21c9b7ac1526829b9640ddc06695c0b","versionType":"git"},{"lessThan":"c885d111ed9f5a0a1f3cc4e87a50db6518abaa6c","status":"affected","version":"b96ba312e21c9b7ac1526829b9640ddc06695c0b","versionType":"git"},{"lessThan":"e9096a5a170e7ecd6467bc2e08668ec39897cda7","status":"affected","version":"b96ba312e21c9b7ac1526829…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:919b59da9287f0343ea02e2205c69f7939f9a8fa6b6e92e195137ea131ca3238 · sha256:46a0a8f2f50af559… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/xfrm/xfrm_iptfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:919b59da9287f0343ea02e2205c69f7939f9a8fa6b6e92e195137ea131ca3238 · sha256:46a0a8f2f50af559… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/xfrm/xfrm_iptfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"dd66f7f6e360ee82cd905517726f8e9091265de5","status":"affected","version":"b96ba312e21c9b7ac1526829b9640ddc06695c0b","versionType":"git"},{"lessThan":"c885d111ed9f5a0a1f3cc4e87a50db6518abaa6c","status":"affected","version":"b96ba312e21c9b7ac1526829b9640ddc06695c0b","versionType":"git"},{"lessThan":"e9096a5a170e7ecd6467bc2e08668ec39897cda7","status":"affected","version":"b96ba312e21c9b7ac1526829…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:919b59da9287f0343ea02e2205c69f7939f9a8fa6b6e92e195137ea131ca3238 · sha256:46a0a8f2f50af559… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/xfrm/xfrm_iptfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:919b59da9287f0343ea02e2205c69f7939f9a8fa6b6e92e195137ea131ca3238 · sha256:46a0a8f2f50af559… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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:v2:919b59da9287f0343ea02e2205c69f7939f9a8fa6b6e92e195137ea131ca3238 · sha256:46a0a8f2f50af559… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/c885d111ed9f5a0a1f3cc4e87a50db6518abaa6c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:919b59da9287f0343ea02e2205c69f7939f9a8fa6b6e92e195137ea131ca3238 · sha256:46a0a8f2f50af559… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/dd66f7f6e360ee82cd905517726f8e9091265de5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:919b59da9287f0343ea02e2205c69f7939f9a8fa6b6e92e195137ea131ca3238 · sha256:46a0a8f2f50af559… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/e9096a5a170e7ecd6467bc2e08668ec39897cda7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:919b59da9287f0343ea02e2205c69f7939f9a8fa6b6e92e195137ea131ca3238 · sha256:46a0a8f2f50af559… · /containers/cna/references/2

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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