Answer in brief
CVE-2026-72162 records a High severity (CVSS 7.8) vulnerability in ocfs2: fix UBSAN array-index-out-of-bounds in ocfs2_sum_rightmost_rec. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <671889c553ea55e2da6a4f3b15f4c0fa40f2f0d1 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <858aa4965ffa8c0d4bb5dd835ac4f1c9a1dcab85 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <452a8467be8143747292218212671deeb186d2ae || >=0 <6.18.40 || >=0 <7.1.5 | 671889c553ea55e2da6a4f3b15f4c0fa40f2f0d1, 858aa4965ffa8c0d4bb5dd835ac4f1c9a1dcab85, 452a8467be8143747292218212671deeb186d2ae, 6.18.40, 7.1.5 |
| Linux/Linuxgeneric | >=dcd0538ff4e854fa9d7f4630b359ca8fdb5cb5a8 <671889c553ea55e2da6a4f3b15f4c0fa40f2f0d1 || >=dcd0538ff4e854fa9d7f4630b359ca8fdb5cb5a8 <858aa4965ffa8c0d4bb5dd835ac4f1c9a1dcab85 || >=dcd0538ff4e854fa9d7f4630b359ca8fdb5cb5a8 <452a8467be8143747292218212671deeb186d2ae | 671889c553ea55e2da6a4f3b15f4c0fa40f2f0d1, 858aa4965ffa8c0d4bb5dd835ac4f1c9a1dcab85, 452a8467be8143747292218212671deeb186d2ae |
| Linux/Linuxgeneric | 2.6.22 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix UBSAN array-index-out-of-bounds in ocfs2_sum_rightmost_rec [BUG] On-disk corruption setting l_next_free_rec to 0 in an inode's embedded extent list triggers a UBSAN panic on the next write to that file. [CAUSE] ocfs2_sum_rightmost_rec() computes i = le16_to_cpu(el->l_next_free_rec) - 1 and accesses el->l_recs[i] without validating i. When l_next_free_rec is 0, i becomes -1; when l_next_free_rec exceeds l_count, i falls past the end of the array. Either case violates the __counted_by_le(l_count) annotation on l_recs[] and triggers UBSAN. [FIX] Validate the inode's embedded extent list when the inode is read, in ocfs2_validate_inode_block(): l_count must be non-zero and no larger than the inode block can hold, and l_next_free_rec must not exceed l_count. A corrupt list is rejected at read time, before the b-tree code can index l_recs[] out of bounds.
Quoted source text, attributed separately from HOL analysis.