Answer in brief
CVE-2026-43117 records a Critical severity (CVSS 9.1) vulnerability in btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (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 9.1. 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), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=bc074524e123ded281cde25ebc5661910f9679e3 <4a7bab35fad5251c8cb738161152578cd83b6b9c || >=bc074524e123ded281cde25ebc5661910f9679e3 <520e8b4bcf872a534a7bf61ccf880047642df296 || >=bc074524e123ded281cde25ebc5661910f9679e3 <e252db8ca2a01f82d472091f35d549b313278636 || >=bc074524e123ded281cde25ebc5661910f9679e3 <c09a7446aab5773f38d6abb25fce99b8e1dfbc97 || >=bc074524e123ded281cde25ebc5661910f9679e3 <32372781d664a9b03c40343e96c29d0a6139f97d || >=bc074524e123ded281cde25ebc5661910f9679e3 <2e4adfaec97ee053ad1bdfb5036845e66f7e0d8a || >=bc074524e123ded281cde25ebc5661910f9679e3 <d110d7cdb045715c0b45b0dfd974525bb38f653d || >=bc074524e123ded281cde25ebc5661910f9679e3 <a85b46db143fda5869e7d8df8f258ccef5fa1719 | 4a7bab35fad5251c8cb738161152578cd83b6b9c, 520e8b4bcf872a534a7bf61ccf880047642df296, e252db8ca2a01f82d472091f35d549b313278636, c09a7446aab5773f38d6abb25fce99b8e1dfbc97, 32372781d664a9b03c40343e96c29d0a6139f97d, 2e4adfaec97ee053ad1bdfb5036845e66f7e0d8a, d110d7cdb045715c0b45b0dfd974525bb38f653d, a85b46db143fda5869e7d8df8f258ccef5fa1719 |
| Linux/Linuxgeneric | 4.8 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
May 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() If overlay is used on top of btrfs, dentry->d_sb translates to overlay's super block and fsid assignment will lead to a crash. Use file_inode(file)->i_sb to always get btrfs_sb.
Quoted source text, attributed separately from HOL analysis.