CVE-2026-90121
irqchip/gic-v5: Clear per-CPU IRS data on teardown
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v5: Clear per-CPU IRS data on teardown IRS affinity setup publishes an IRS pointer and IAFFID state in the per-CPU data before the remaining IRS initialization can fail. The error path then frees the IRS data without clearing that published state, leaving CPUs associated with freed memory. On initialization failure and normal IRS teardown, clear the per-CPU IRS association by removing the stale pointer to irs_data. Also invalidate the per-CPU IAFFID state for any CPUs that were tied to the IRS before it was freed.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
5cb1b6dab2def316671ea2565291a86ad58b884c < 54937af6f4a0d44c2852a203d457902f3264c906 5cb1b6dab2def316671ea2565291a86ad58b884c < 3dfc0ab5fefd052c6028c4632b1fad8bdaf7967e
Linux / Linux
6.17