Answer in brief
CVE-2026-46331 records a High severity (CVSS 7.8) vulnerability in net/sched: fix pedit partial COW leading to page cache corruption. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-46331 records a High severity (CVSS 7.8) vulnerability in net/sched: fix pedit partial COW leading to page cache corruption. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=abe35bf3be51482593076d516a680d79e5fbc8e1 <544d857b42a1734b923040e13aa61a6fd4746cf2 || >=b773640d5bb9e2acfd91e2695717af04d47aa116 <d5d01d35a5a7d36f7cb679b67d9cbdd5205672dc || >=8b796475fd7882663a870456466a4fb315cc1bd6 <a071e057518decc5e3bec89855758f5f8786f2c5 || >=8b796475fd7882663a870456466a4fb315cc1bd6 <b685d6ef6f07a3b5ce814565a25f39f2157538a5 || >=8b796475fd7882663a870456466a4fb315cc1bd6 <2bec122b9fb91507a758ab5e3e5c4fbe7cb3f61b || >=8b796475fd7882663a870456466a4fb315cc1bd6 <b198ed4e52580a7238c7c7082f03906f8b310313 || >=8b796475fd7882663a870456466a4fb315cc1bd6 <3dee9d0c198faeb95d052c1b94c2958751a28512 || >=8b796475fd7882663a870456466a4fb315cc1bd6 <899ee91156e57784090c5565e4f31bd7dbffbc5a || d0c38a914b0c4c21d553da801003d36979016726 || 2ec2dd7d51a9320151f275ddbb2b53260fb32ca1 || c19cc520b3d69904e9518d401ad0df7f4702aca0 || >=5.10.117 <5.10.260 || >=5.15.41 <5.15.211 || >=4.19.244 <4.20 || >=5.4.195 <5.5 || >=5.17.9 <5.18 | 544d857b42a1734b923040e13aa61a6fd4746cf2, d5d01d35a5a7d36f7cb679b67d9cbdd5205672dc, a071e057518decc5e3bec89855758f5f8786f2c5, b685d6ef6f07a3b5ce814565a25f39f2157538a5, 2bec122b9fb91507a758ab5e3e5c4fbe7cb3f61b, b198ed4e52580a7238c7c7082f03906f8b310313, 3dee9d0c198faeb95d052c1b94c2958751a28512, 899ee91156e57784090c5565e4f31bd7dbffbc5a, 5.10.260, 5.15.211, 4.20, 5.5, 5.18 |
| Linux/Linuxgeneric | 5.18 | Not reported |
Published upstream
Jun 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
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.
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=abe35bf3be51482593076d516a680d79e5fbc8e1 <544d857b42a1734b923040e13aa61a6fd4746cf2 || >=b773640d5bb9e2acfd91e2695717af04d47aa116 <d5d01d35a5a7d36f7cb679b67d9cbdd5205672dc || >=8b796475fd7882663a870456466a4fb315cc1bd6 <a071e057518decc5e3bec89855758f5f8786f2c5 || >=8b796475fd7882663a870456466a4fb315cc1bd6 <b685d6ef6f07a3b5ce814565a25f39f2157538a5 || >=8b796475fd7882663a870456466a4fb315cc1bd6 <2bec122b9fb91507a758ab5e3e5c4fbe7cb3f61b || >=8b796475fd7882663a870456466a4fb315cc1bd6 <b198ed4e52580a7238c7c7082f03906f8b310313 || >=8b796475fd7882663a870456466a4fb315cc1bd6 <3dee9d0c198faeb95d052c1b94c2958751a28512 || >=8b796475fd7882663a870456466a4fb315cc1bd6 <899ee91156e57784090c5565e4f31bd7dbffbc5a || d0c38a914b0c4c21d553da801003d36979016726 || 2ec2dd7d51a9320151f275ddbb2b53260fb32ca1 || c19cc520b3d69904e9518d401ad0df7f4702aca0 || >=5.10.117 <5.10.260 || >=5.15.41 <5.15.211 || >=4.19.244 <4.20 || >=5.4.195 <5.5 || >=5.17.9 <5.18 | 544d857b42a1734b923040e13aa61a6fd4746cf2, d5d01d35a5a7d36f7cb679b67d9cbdd5205672dc, a071e057518decc5e3bec89855758f5f8786f2c5, b685d6ef6f07a3b5ce814565a25f39f2157538a5, 2bec122b9fb91507a758ab5e3e5c4fbe7cb3f61b, b198ed4e52580a7238c7c7082f03906f8b310313, 3dee9d0c198faeb95d052c1b94c2958751a28512, 899ee91156e57784090c5565e4f31bd7dbffbc5a, 5.10.260, 5.15.211, 4.20, 5.5, 5.18 |
| Linux/Linuxgeneric | 5.18 | Not reported |
Published upstream
Jun 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
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.
Quoted source text, attributed separately from HOL analysis.