What’s Vulnerable › Vulnerabilities

CVE-2024-35953: accel/ivpu: Fix deadlock in context_xa

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-20 · updated 2026-06-17
• Weakness: CWE-667

Description

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Fix deadlock in context_xa ivpu_device->context_xa is locked both in kernel thread and IRQ context. It requires XA_FLAGS_LOCK_IRQ flag to be passed during initialization otherwise the lock could be acquired from a thread and interrupted by an IRQ that locks it for the second time causing the deadlock. This deadlock was reported by lockdep and observed in internal tests.

Affected products

• Linux kernel: from 6.3 before 6.6.28; from 6.7 before 6.8.7; 6.9-rc1, 6.9-rc2, 6.9-rc3 — fixed in 6.6.28, 6.8.7

How to fix

Upgrade to a fixed version: Linux kernel 6.6.28, 6.8.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/d43e11d9c7fcb16f18bd46ab2556c2772ffc5775
• https://git.kernel.org/stable/c/e6011411147209bc0cc14628cbc155356837e52a
• https://git.kernel.org/stable/c/fd7726e75968b27fe98534ccbf47ccd6fef686f3
• https://git.kernel.org/stable/c/d43e11d9c7fcb16f18bd46ab2556c2772ffc5775
• https://git.kernel.org/stable/c/e6011411147209bc0cc14628cbc155356837e52a
• https://git.kernel.org/stable/c/fd7726e75968b27fe98534ccbf47ccd6fef686f3

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