CVE-2026-53310: soc/tegra: cbb: Fix cross-fabric target timeout lookup
In the Linux kernel, the following vulnerability has been resolved:
soc/tegra: cbb: Fix cross-fabric target timeout lookup
When a fabric receives an error interrupt, the error may have occurred on a different fabric. The target timeout lookup was using the wrong base address (cbb->regs) with offsets from a different fabric's target map, causing a kernel page fault.
Unable to handle kernel paging request at virtual address ffff80000954cc00 pc : tegra234cbbgettmoslv+0xc/0x28 Call trace: tegra234cbbgettmoslv+0xc/0x28 printerrnotifier+0x6c0/0x7d0 tegra234cbbisr+0xe4/0x1b4
Add tegra234cbbgetfabric() to look up the correct fabric device using fabid, and use its base address for accessing target timeout registers.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Apply the Linux kernel fix for the cross-fabric target timeout lookup issue described as "soc/tegra: cbb: Fix cross-fabric target timeout lookup" (tegra234_cbb_get_fabric() should be used to look up the correct fabric device via fab_id and then use that fabric's base address for accessing target timeout).
Event History
Frequently Asked Questions
What is the severity of CVE-2026-53310?
CVE-2026-53310 has a risk score of 34, indicating a potential moderate severity vulnerability.
How do I fix CVE-2026-53310?
To fix CVE-2026-53310, update your Linux kernel version to one that includes the patch addressing the cross-fabric target timeout lookup issue.
What systems are affected by CVE-2026-53310?
CVE-2026-53310 impacts the Linux kernel, particularly in systems utilizing the Tegra SOC architecture.
What is the nature of the vulnerability in CVE-2026-53310?
CVE-2026-53310 involves an incorrect timeout lookup due to the wrong base address being used during error interrupt handling.
When was CVE-2026-53310 published?
CVE-2026-53310 was published on June 26, 2026.