Answer in brief
CVE-2022-49168 records a Unknown severity vulnerability in btrfs: do not clean up repair bio if submit fails. 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.
A CVSS score is not reported in the current record. 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 | >=6c387ab20db15f2bd448f7c508e2638101b16ea1 <e7e1d15d2bd8c373cf621614ddd17971a2132713 || >=6c387ab20db15f2bd448f7c508e2638101b16ea1 <7170875083254b51fcc5d67f96640977083f481e || >=6c387ab20db15f2bd448f7c508e2638101b16ea1 <e76c78c48902dae6fa612749f59162bca0a79e0b || >=6c387ab20db15f2bd448f7c508e2638101b16ea1 <d1cb11fb45ebbb1e7dfe5e9038b32ea72c184b14 || >=6c387ab20db15f2bd448f7c508e2638101b16ea1 <8cbc3001a3264d998d6b6db3e23f935c158abd4d | e7e1d15d2bd8c373cf621614ddd17971a2132713, 7170875083254b51fcc5d67f96640977083f481e, e76c78c48902dae6fa612749f59162bca0a79e0b, d1cb11fb45ebbb1e7dfe5e9038b32ea72c184b14, 8cbc3001a3264d998d6b6db3e23f935c158abd4d |
| Linux/Linuxgeneric | 3.18 | Not reported |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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: do not clean up repair bio if submit fails The submit helper will always run bio_endio() on the bio if it fails to submit, so cleaning up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs because we race with the endio function that is cleaning up the bio. Instead just return BLK_STS_OK as the repair function has to continue to process the rest of the pages, and the endio for the repair bio will do the appropriate cleanup for the page that it was given.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2022-49168 records a Unknown severity vulnerability in btrfs: do not clean up repair bio if submit fails. 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.
A CVSS score is not reported in the current record. 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 | >=6c387ab20db15f2bd448f7c508e2638101b16ea1 <e7e1d15d2bd8c373cf621614ddd17971a2132713 || >=6c387ab20db15f2bd448f7c508e2638101b16ea1 <7170875083254b51fcc5d67f96640977083f481e || >=6c387ab20db15f2bd448f7c508e2638101b16ea1 <e76c78c48902dae6fa612749f59162bca0a79e0b || >=6c387ab20db15f2bd448f7c508e2638101b16ea1 <d1cb11fb45ebbb1e7dfe5e9038b32ea72c184b14 || >=6c387ab20db15f2bd448f7c508e2638101b16ea1 <8cbc3001a3264d998d6b6db3e23f935c158abd4d | e7e1d15d2bd8c373cf621614ddd17971a2132713, 7170875083254b51fcc5d67f96640977083f481e, e76c78c48902dae6fa612749f59162bca0a79e0b, d1cb11fb45ebbb1e7dfe5e9038b32ea72c184b14, 8cbc3001a3264d998d6b6db3e23f935c158abd4d |
| Linux/Linuxgeneric | 3.18 | Not reported |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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: do not clean up repair bio if submit fails The submit helper will always run bio_endio() on the bio if it fails to submit, so cleaning up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs because we race with the endio function that is cleaning up the bio. Instead just return BLK_STS_OK as the repair function has to continue to process the rest of the pages, and the endio for the repair bio will do the appropriate cleanup for the page that it was given.
Quoted source text, attributed separately from HOL analysis.