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CVE-2026-23305: accel/rocket: fix unwinding in error path in rocket_probe

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-25 · updated 2026-06-17
• Weakness: CWE-125

Description

In the Linux kernel, the following vulnerability has been resolved: accel/rocket: fix unwinding in error path in rocket_probe When rocket_core_init() fails (as could be the case with EPROBE_DEFER), we need to properly unwind by decrementing the counter we just incremented and if this is the first core we failed to probe, remove the rocket DRM device with rocket_device_fini() as well. This matches the logic in rocket_remove(). Failing to properly unwind results in out-of-bounds accesses.

Affected products

• Linux kernel: from 6.18 before 6.18.17; from 6.19 before 6.19.7 — fixed in 6.18.17, 6.19.7

How to fix

Upgrade to a fixed version: Linux kernel 6.18.17, 6.19.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/34f4495a7f72895776b81969639f527c99eb12b9
• https://git.kernel.org/stable/c/7fc4b49474c836cee7d9801abf05e0198fcbfa74
• https://git.kernel.org/stable/c/eeaf28c8f4defe371a008a5ddefaf18abf534f81

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