PT-2026-52954 · Undefined · Undefined
Publicado
2026-06-26
·
Atualizado
2026-06-26
·
CVE-2026-53315
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In the Linux kernel, the following vulnerability has been resolved:
drm/amd/ras: Fix NULL deref in ras core get utc second timestamp()
ras core get utc second timestamp() retrieves the current UTC timestamp
(in seconds since the Unix epoch) through a platform-specific RAS system
callback and is used for timestamping RAS error events.
The function checks ras core in the conditional statement before calling
the sys fn callback. However, when the condition fails, the function
prints an error message using ras core->dev.
If ras core is NULL, this can lead to a potential NULL pointer
dereference when accessing ras core->dev.
Add an early NULL check for ras core at the beginning of the function
and return 0 when the pointer is not valid. This prevents the
dereference and makes the control flow clearer.
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