CVE-2026-46331

Enriched by CISA
 

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcf_pedit_act() computes the COW range for skb_ensure_writable() once before the key loop using tcfp_off_max_hint, but the hint does not account for the runtime header offset added by typed keys. This can leave part of the write region un-COW'd. Fix by moving skb_ensure_writable() inside the per-key loop where the actual write offset is known, and add overflow checking on the offset arithmetic. For negative offsets (e.g. Ethernet header edits at ingress), use skb_cow() to COW the headroom instead. Guard offset_valid() against INT_MIN, where negation is undefined.
https://nvd.nist.gov/vuln/detail/CVE-2026-46331

Categories

No category defined

References


 

AFFECTED (from MITRE)

Vendor Product Versions
Linux Linux
  • 8b796475fd7882663a870456466a4fb315cc1bd6 < 2bec122b9fb91507a758ab5e3e5c4fbe7cb3f61b [affected]
  • 8b796475fd7882663a870456466a4fb315cc1bd6 < b198ed4e52580a7238c7c7082f03906f8b310313 [affected]
  • 8b796475fd7882663a870456466a4fb315cc1bd6 < 3dee9d0c198faeb95d052c1b94c2958751a28512 [affected]
  • 8b796475fd7882663a870456466a4fb315cc1bd6 < 899ee91156e57784090c5565e4f31bd7dbffbc5a [affected]
  • d0c38a914b0c4c21d553da801003d36979016726 [affected]
  • 2ec2dd7d51a9320151f275ddbb2b53260fb32ca1 [affected]
  • abe35bf3be51482593076d516a680d79e5fbc8e1 [affected]
  • b773640d5bb9e2acfd91e2695717af04d47aa116 [affected]
  • c19cc520b3d69904e9518d401ad0df7f4702aca0 [affected]
  • 4.19.244 < 4.20 [affected]
  • 5.4.195 < 5.5 [affected]
  • 5.10.117 < 5.11 [affected]
  • 5.15.41 < 5.16 [affected]
  • 5.17.9 < 5.18 [affected]
Linux Linux
  • 5.18 [affected]
  • < 5.18 [unaffected]
  • 6.12.94 ≤ 6.12.* [unaffected]
  • 6.18.36 ≤ 6.18.* [unaffected]
  • 7.0.13 ≤ 7.0.* [unaffected]
  • 7.1 ≤ * [unaffected]
© 2022 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.

CPE

cpe start end
Configuration 1
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 5.18 < 6.12.94
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 5.18 < 6.18.36
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 5.18 < 7.0.13
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 5.18 < 7.1
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 4.19.244
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 5.4.195
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 5.10.117
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 5.15.41
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 5.17.9

REMEDIATION


EXPLOITS

Exploit-db.com

id description date
No known exploits

POC Github

Url
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Other Nist (github, ...)

Url
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CAPEC

Common Attack Pattern Enumerations and Classifications

id description severity
No entry