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CVE-2024-50173: drm/panthor: Fix access to uninitialized variable in tick_ctx_cleanup()

• 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: 2024-11-08 · updated 2026-08-04
• Weakness: CWE-908

Description

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Fix access to uninitialized variable in tick_ctx_cleanup() The group variable can't be used to retrieve ptdev in our second loop, because it points to the previously iterated list_head, not a valid group. Get the ptdev object from the scheduler instead.

Affected products

• Linux kernel: from 6.10 before 6.10.14; from 6.11 before 6.11.3; 6.12-rc1 — fixed in 6.10.14, 6.11.3

How to fix

Upgrade to a fixed version: Linux kernel 6.10.14, 6.11.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/282864cc5d3f144af0cdea1868ee2dc2c5110f0d
• https://git.kernel.org/stable/c/3bde05794497d5f426d4ea2ecb9868bf7721fb24
• https://git.kernel.org/stable/c/ac2ca5e5148a0d4d78ac01c2d8348d0757c7367f

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