Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
4295f9bf74a885da390abc49a3b42a011c1bb890 to < 0bc3d909a49e1fd8b8c3f2160d526e672c40621daffected4295f9bf74a885da390abc49a3b42a011c1bb890 to < 47008d59c60ed896085da95f8d4dd40e1677dd3aaffected4295f9bf74a885da390abc49a3b42a011c1bb890 to < d374f76e1257ecc5d691a765c512ed2c29a44741affected4295f9bf74a885da390abc49a3b42a011c1bb890 to < b2ff450f7f5cfc7143cab57c3ad70293ba8b822aaffected4295f9bf74a885da390abc49a3b42a011c1bb890 to < 9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31affected4295f9bf74a885da390abc49a3b42a011c1bb890 to < de590cdf7efec8a0b6da90ae2ab5fc5df26810b9affected4295f9bf74a885da390abc49a3b42a011c1bb890 to < 48cf0f4c6581ec90104cec9c5bf794a8bf347e30affected4295f9bf74a885da390abc49a3b42a011c1bb890 to < d8421e09382cfe0bd2a044c8b0a822f64855dd4eaffected
Linux Linux
Default version status: affected
2.6.39affected0 to < 2.6.39unaffected5.10.261 to ≤ 5.10.*unaffected5.15.212 to ≤ 5.15.*unaffected6.1.178 to ≤ 6.1.*unaffected6.6.145 to ≤ 6.6.*unaffected6.12.97 to ≤ 6.12.*unaffected6.18.40 to ≤ 6.18.*unaffected7.1.5 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/0bc3d909a49e1fd8b8c3f2160d526e672c40621d ↗
- https://git.kernel.org/stable/c/47008d59c60ed896085da95f8d4dd40e1677dd3a ↗
- https://git.kernel.org/stable/c/d374f76e1257ecc5d691a765c512ed2c29a44741 ↗
- https://git.kernel.org/stable/c/b2ff450f7f5cfc7143cab57c3ad70293ba8b822a ↗
- https://git.kernel.org/stable/c/9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31 ↗
- https://git.kernel.org/stable/c/de590cdf7efec8a0b6da90ae2ab5fc5df26810b9 ↗
- https://git.kernel.org/stable/c/48cf0f4c6581ec90104cec9c5bf794a8bf347e30 ↗
- https://git.kernel.org/stable/c/d8421e09382cfe0bd2a044c8b0a822f64855dd4e ↗