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CVE-2026-53228

In the Linux kernel, the following vulnerability has been resolved: ipv6: sit: reload inner IPv6 header after GSO offloads ipip6_tunnel_xmit() caches the inner IPv6 header pointer at function entry and continues using it after iptunnel_handle_offloads(). For GSO skbs, iptunnel_handle_offloads() calls skb_header_unclone(). When the skb header is cloned, skb_header_unclone() can call pskb_expand_head(), which may move the skb head. The pskb_expand_head() contract requires pointers into the skb
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:32f61704c76dd6f7bb41246aecd8a1c0a87eddfe307fcf5145e5ccce3384ddf6
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":["net/ipv6/sit.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.18"},{"lessThan":"3.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqua…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv6/sit.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"fddd41445a0537b093e6b3f6232c9933cad1e48b","status":"affected","version":"14909664e4e192f4c6f6fcdccd9919af7cf783ab","versionType":"git"},{"lessThan":"1132e5edc2866c3530be17622153a597095f0e43","status":"affected","version":"14909664e4e192f4c6f6fcdccd9919af7cf783ab","versionType":"git"},{"lessThan":"9c67b44edb3598d234efae6e44649eb993c03da5","status":"affected","version":"14909664e4e192f4c6f6fcdccd9919a…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv6/sit.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.18"},{"lessThan":"3.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqua…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv6/sit.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"fddd41445a0537b093e6b3f6232c9933cad1e48b","status":"affected","version":"14909664e4e192f4c6f6fcdccd9919af7cf783ab","versionType":"git"},{"lessThan":"1132e5edc2866c3530be17622153a597095f0e43","status":"affected","version":"14909664e4e192f4c6f6fcdccd9919af7cf783ab","versionType":"git"},{"lessThan":"9c67b44edb3598d234efae6e44649eb993c03da5","status":"affected","version":"14909664e4e192f4c6f6fcdccd9919a…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /containers/cna/affected/0

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:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/0bfa7bba1f41aaf5f0604dc712bb4701493e3aa0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/1132e5edc2866c3530be17622153a597095f0e43"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/2fa49b2715e1bad12ce3b0fa64e234d9582c8193"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/59f80c919713250fe5d25a4d9aea4e49580fa1d4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/9c67b44edb3598d234efae6e44649eb993c03da5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/cb658c2f5f7977c2a1c77c9f239f4bc8196edb5c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/f0e42f0c4337b1f220de1ddd63f47197c7dee4de"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/fddd41445a0537b093e6b3f6232c9933cad1e48b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec82ee69648e2955ca12ad2f5bf526b56829dfdba30966b0cf8178d79f73fc44 · sha256:110648e02b6f0f8a… · /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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