Answer in brief
CVE-2026-74320 records a Unknown severity vulnerability in fbdev: sm501fb: Fix buffer errors in OF binding code. 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-2026-74320 records a Unknown severity vulnerability in fbdev: sm501fb: Fix buffer errors in OF binding code. 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 | >=4295f9bf74a885da390abc49a3b42a011c1bb890 <0bc3d909a49e1fd8b8c3f2160d526e672c40621d || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <47008d59c60ed896085da95f8d4dd40e1677dd3a || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <d374f76e1257ecc5d691a765c512ed2c29a44741 || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <b2ff450f7f5cfc7143cab57c3ad70293ba8b822a || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31 || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <de590cdf7efec8a0b6da90ae2ab5fc5df26810b9 || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <48cf0f4c6581ec90104cec9c5bf794a8bf347e30 || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <d8421e09382cfe0bd2a044c8b0a822f64855dd4e | 0bc3d909a49e1fd8b8c3f2160d526e672c40621d, 47008d59c60ed896085da95f8d4dd40e1677dd3a, d374f76e1257ecc5d691a765c512ed2c29a44741, b2ff450f7f5cfc7143cab57c3ad70293ba8b822a, 9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31, de590cdf7efec8a0b6da90ae2ab5fc5df26810b9, 48cf0f4c6581ec90104cec9c5bf794a8bf347e30, d8421e09382cfe0bd2a044c8b0a822f64855dd4e |
| Linux/Linuxgeneric | 2.6.39 | 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: fbdev: sm501fb: Fix buffer errors in OF binding code The code that gets the frame buffer mode from OF has 'use after free', 'buffer overrun' and memory leaks. info->edid_data isn't free if the probe functions fail or if pd->def_mode is set. If both the CRT and PANEL are enabled info->edid_data is used after being freed and is freed twice. The string returned by of_get_property(np, "mode", &len) is just written over either the static "640x480-16@60" or the module parameter string without any regard for the length (which is most likely longer). Use kstrump() for the OF mode and free everything before freeing 'info.
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 | >=4295f9bf74a885da390abc49a3b42a011c1bb890 <0bc3d909a49e1fd8b8c3f2160d526e672c40621d || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <47008d59c60ed896085da95f8d4dd40e1677dd3a || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <d374f76e1257ecc5d691a765c512ed2c29a44741 || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <b2ff450f7f5cfc7143cab57c3ad70293ba8b822a || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31 || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <de590cdf7efec8a0b6da90ae2ab5fc5df26810b9 || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <48cf0f4c6581ec90104cec9c5bf794a8bf347e30 || >=4295f9bf74a885da390abc49a3b42a011c1bb890 <d8421e09382cfe0bd2a044c8b0a822f64855dd4e | 0bc3d909a49e1fd8b8c3f2160d526e672c40621d, 47008d59c60ed896085da95f8d4dd40e1677dd3a, d374f76e1257ecc5d691a765c512ed2c29a44741, b2ff450f7f5cfc7143cab57c3ad70293ba8b822a, 9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31, de590cdf7efec8a0b6da90ae2ab5fc5df26810b9, 48cf0f4c6581ec90104cec9c5bf794a8bf347e30, d8421e09382cfe0bd2a044c8b0a822f64855dd4e |
| Linux/Linuxgeneric | 2.6.39 | 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: fbdev: sm501fb: Fix buffer errors in OF binding code The code that gets the frame buffer mode from OF has 'use after free', 'buffer overrun' and memory leaks. info->edid_data isn't free if the probe functions fail or if pd->def_mode is set. If both the CRT and PANEL are enabled info->edid_data is used after being freed and is freed twice. The string returned by of_get_property(np, "mode", &len) is just written over either the static "640x480-16@60" or the module parameter string without any regard for the length (which is most likely longer). Use kstrump() for the OF mode and free everything before freeing 'info.
Quoted source text, attributed separately from HOL analysis.