Answer in brief
CVE-2026-53076 records a High severity (CVSS 7.1) vulnerability in bpf: Fix OOB in pcpu_init_value. 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 7.1. 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 | >=d3bec0138bfbe58606fc1d6f57a4cdc1a20218db <e19c5ed9f1922a6854073f8651a63fa7be26e9e9 || >=d3bec0138bfbe58606fc1d6f57a4cdc1a20218db <e0378419b0e20178b5d100b27c9cc7e51064202e || >=d3bec0138bfbe58606fc1d6f57a4cdc1a20218db <6086079e6d1c32ba4c4b422612b8aebb1129a96c || >=d3bec0138bfbe58606fc1d6f57a4cdc1a20218db <634a793d0e1c822412095d25a1338f8831ad894c || >=d3bec0138bfbe58606fc1d6f57a4cdc1a20218db <576afddfee8d1108ee299bf10f581593540d1a36 || c602ad2b52dcbca5af08e5137bd5575c039b52e3 || ab68b940dd6f7b5f8e2557937162dcb8a0583a05 || >=5.4.78 <5.5 || >=5.9.9 <5.10 | e19c5ed9f1922a6854073f8651a63fa7be26e9e9, e0378419b0e20178b5d100b27c9cc7e51064202e, 6086079e6d1c32ba4c4b422612b8aebb1129a96c, 634a793d0e1c822412095d25a1338f8831ad894c, 576afddfee8d1108ee299bf10f581593540d1a36, 5.5, 5.10 |
| Linux/Linuxgeneric | 5.10 | Not reported |
Published upstream
Jun 24, 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 24, 2026
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix OOB in pcpu_init_value An out-of-bounds read occurs when copying element from a BPF_MAP_TYPE_CGROUP_STORAGE map to another pcpu map with the same value_size that is not rounded up to 8 bytes. The issue happens when: 1. A CGROUP_STORAGE map is created with value_size not aligned to 8 bytes (e.g., 4 bytes) 2. A pcpu map is created with the same value_size (e.g., 4 bytes) 3. Update element in 2 with data in 1 pcpu_init_value assumes that all sources are rounded up to 8 bytes, and invokes copy_map_value_long to make a data copy, However, the assumption doesn't stand since there are some cases where the source may not be rounded up to 8 bytes, e.g., CGROUP_STORAGE, skb->data. the verifier verifies exactly the size that the source claims, not the size rounded up to 8 bytes by kernel, an OOB happens when the source has only 4 bytes while the copy size(4) is rounded up to 8.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-53076 records a High severity (CVSS 7.1) vulnerability in bpf: Fix OOB in pcpu_init_value. 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 7.1. 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 | >=d3bec0138bfbe58606fc1d6f57a4cdc1a20218db <e19c5ed9f1922a6854073f8651a63fa7be26e9e9 || >=d3bec0138bfbe58606fc1d6f57a4cdc1a20218db <e0378419b0e20178b5d100b27c9cc7e51064202e || >=d3bec0138bfbe58606fc1d6f57a4cdc1a20218db <6086079e6d1c32ba4c4b422612b8aebb1129a96c || >=d3bec0138bfbe58606fc1d6f57a4cdc1a20218db <634a793d0e1c822412095d25a1338f8831ad894c || >=d3bec0138bfbe58606fc1d6f57a4cdc1a20218db <576afddfee8d1108ee299bf10f581593540d1a36 || c602ad2b52dcbca5af08e5137bd5575c039b52e3 || ab68b940dd6f7b5f8e2557937162dcb8a0583a05 || >=5.4.78 <5.5 || >=5.9.9 <5.10 | e19c5ed9f1922a6854073f8651a63fa7be26e9e9, e0378419b0e20178b5d100b27c9cc7e51064202e, 6086079e6d1c32ba4c4b422612b8aebb1129a96c, 634a793d0e1c822412095d25a1338f8831ad894c, 576afddfee8d1108ee299bf10f581593540d1a36, 5.5, 5.10 |
| Linux/Linuxgeneric | 5.10 | Not reported |
Published upstream
Jun 24, 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 24, 2026
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix OOB in pcpu_init_value An out-of-bounds read occurs when copying element from a BPF_MAP_TYPE_CGROUP_STORAGE map to another pcpu map with the same value_size that is not rounded up to 8 bytes. The issue happens when: 1. A CGROUP_STORAGE map is created with value_size not aligned to 8 bytes (e.g., 4 bytes) 2. A pcpu map is created with the same value_size (e.g., 4 bytes) 3. Update element in 2 with data in 1 pcpu_init_value assumes that all sources are rounded up to 8 bytes, and invokes copy_map_value_long to make a data copy, However, the assumption doesn't stand since there are some cases where the source may not be rounded up to 8 bytes, e.g., CGROUP_STORAGE, skb->data. the verifier verifies exactly the size that the source claims, not the size rounded up to 8 bytes by kernel, an OOB happens when the source has only 4 bytes while the copy size(4) is rounded up to 8.
Quoted source text, attributed separately from HOL analysis.