In the Linux kernel, the following vulnerability has been resolved:
drm/omap: dsi: Do not copy isr table
To be able to unregister stuff from isrs, the corresponding table was
copied. Nobody seems to unregister stuff that way, so it does not help.
But there are stack-allocated objects passed to these isrs giving chances
of UAF of these objects if irqs are unregistered while they are handled,
so better do not copy that table.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
References 7
https://git.kernel.org/stable/c/2c27a84ba8d1bfed046d0067161d92001605accc
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/30810bdf273b4c93f8731b96a7204f33e052180d
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/542a6a3ec77cd29f953987f7263f32fb8acb097e
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9063b30faae8ccaacf003735560df3956dbb592f
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/97c03b32b28a9f7f13f768f2b06e1eaafe850e66
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b3cbd1451c240446ce170f514244e1cb65ec0de4
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f6733460b6d483dea7bfb5cfceb11cbff31a60b7
416baaa9-dc9f-4396-8d5f-8c081fb06d67