Description (CNA)
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 decide correctly whether in-place encryption is safe. Apply the same two-line fix used in skb_try_coalesce() to iptfs_consume_frags().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b96ba312e21c9b7ac1526829b9640ddc06695c0b before dd66f7f6e360ee82cd905517726f8e9091265de5; affected b96ba312e21c9b7ac1526829b9640ddc06695c0b before c885d111ed9f5a0a1f3cc4e87a50db6518abaa6c; affected b96ba312e21c9b7ac1526829b9640ddc06695c0b before e9096a5a170e7ecd6467bc2e08668ec39897cda7 |
| Linux / Linux | affected 6.14; unaffected 0 before 6.14; unaffected 6.18.36 through 6.18.*; unaffected 7.0.13 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.