Answer in brief
CVE-2026-72297 records a Unknown severity vulnerability in net: atm: reject out-of-range traffic classes in QoS validation. 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-2026-72297 records a Unknown severity vulnerability in net: atm: reject out-of-range traffic classes in QoS validation. 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 | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a6dda72455b399ce9c1a12695471dc4d5c61add || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2b3e241729e87afed13ac0f666472d5d6ca42e87 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <367acd288bc6255e247cb1a1efbf5c6567cab423 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <513f820b3f0cf4462e17d84c39ed3948d061a6ea || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <15444b57fdc6fc3f3e22a87f791ae5be81e6ecf5 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e62adb157c2eaad9ad4867ec6cd9af5b9a51b1c7 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <806b7b6edc8446e8b94b706807a7090a14d47b5c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cdf19f380e46192e7084be559638aab1f6ed86a2 | 1a6dda72455b399ce9c1a12695471dc4d5c61add, 2b3e241729e87afed13ac0f666472d5d6ca42e87, 367acd288bc6255e247cb1a1efbf5c6567cab423, 513f820b3f0cf4462e17d84c39ed3948d061a6ea, 15444b57fdc6fc3f3e22a87f791ae5be81e6ecf5, e62adb157c2eaad9ad4867ec6cd9af5b9a51b1c7, 806b7b6edc8446e8b94b706807a7090a14d47b5c, cdf19f380e46192e7084be559638aab1f6ed86a2 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 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: net: atm: reject out-of-range traffic classes in QoS validation Reject ATM traffic classes above ATM_ANYCLASS in check_tp(). SO_ATMQOS stores the supplied QoS after check_qos() succeeds, so accepting larger values leaves invalid traffic_class values in vcc->qos. That bad state later reaches pvc_info(), which indexes class_name[] with vcc->qos.{rx,tp}.traffic_class. Values above ATM_ANYCLASS cause an out-of-bounds read when /proc/net/atm/pvc is read. Tighten the existing QoS validation so invalid traffic_class values are rejected at the point where user supplied QoS is accepted.
Quoted source text, attributed separately from HOL analysis.
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 | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a6dda72455b399ce9c1a12695471dc4d5c61add || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2b3e241729e87afed13ac0f666472d5d6ca42e87 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <367acd288bc6255e247cb1a1efbf5c6567cab423 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <513f820b3f0cf4462e17d84c39ed3948d061a6ea || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <15444b57fdc6fc3f3e22a87f791ae5be81e6ecf5 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e62adb157c2eaad9ad4867ec6cd9af5b9a51b1c7 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <806b7b6edc8446e8b94b706807a7090a14d47b5c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cdf19f380e46192e7084be559638aab1f6ed86a2 | 1a6dda72455b399ce9c1a12695471dc4d5c61add, 2b3e241729e87afed13ac0f666472d5d6ca42e87, 367acd288bc6255e247cb1a1efbf5c6567cab423, 513f820b3f0cf4462e17d84c39ed3948d061a6ea, 15444b57fdc6fc3f3e22a87f791ae5be81e6ecf5, e62adb157c2eaad9ad4867ec6cd9af5b9a51b1c7, 806b7b6edc8446e8b94b706807a7090a14d47b5c, cdf19f380e46192e7084be559638aab1f6ed86a2 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 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: net: atm: reject out-of-range traffic classes in QoS validation Reject ATM traffic classes above ATM_ANYCLASS in check_tp(). SO_ATMQOS stores the supplied QoS after check_qos() succeeds, so accepting larger values leaves invalid traffic_class values in vcc->qos. That bad state later reaches pvc_info(), which indexes class_name[] with vcc->qos.{rx,tp}.traffic_class. Values above ATM_ANYCLASS cause an out-of-bounds read when /proc/net/atm/pvc is read. Tighten the existing QoS validation so invalid traffic_class values are rejected at the point where user supplied QoS is accepted.
Quoted source text, attributed separately from HOL analysis.