CVE-2026-74320None▾ SunlitIn 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->e…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < 0bc3d909a49e1fd8b8c3f2160d526e672c40621dLinux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < 47008d59c60ed896085da95f8d4dd40e1677dd3aLinux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < d374f76e1257ecc5d691a765c512ed2c29a44741Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < b2ff450f7f5cfc7143cab57c3ad70293ba8b822aLinux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < 9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < de590cdf7efec8a0b6da90ae2ab5fc5df26810b9Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < 48cf0f4c6581ec90104cec9c5bf794a8bf347e30Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < d8421e09382cfe0bd2a044c8b0a822f64855dd4eLinux 2.6.39Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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