CVE-2026-90428

Summary

In the Linux kernel, the following vulnerability has been resolved:

iommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs

__tegra241_cmdqv_probe() requests the error IRQ before it has allocated the cmdqv->vintfs array and set cmdqv->num_vintfs. A CMDQV left enabled with a latched error across a kexec fires the IRQ as soon as it is requested, and tegra241_cmdqv_isr() then walks the uninitialized cmdqv->vintfs array.

Request the IRQ only after cmdqv->vintfs is allocated and zeroed, so that a latched interrupt firing early runs the ISR against a valid array of NULL slots that it safely skips.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux918eb5c856f6ce4cf93b4b38e4b5e156905c5943 < b1605a56745f22670205f6561df5771bbbb62a99affected
LinuxLinux918eb5c856f6ce4cf93b4b38e4b5e156905c5943 < 2f627118b668659c6b195ac48beedb1bf8f53368affected
LinuxLinux918eb5c856f6ce4cf93b4b38e4b5e156905c5943 < a168254ff8db08f2292be3d8fcbd37d2bb8c3d2daffected
LinuxLinux918eb5c856f6ce4cf93b4b38e4b5e156905c5943 < 5acd67ceb38debe2fbf70ea35e2dec9f7ab01bbdaffected
LinuxLinux6.12affected
LinuxLinux0 < 6.12unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References