What’s Vulnerable › Vulnerabilities

CVE-2026-43264: fbdev: of: display_timing: fix refcount leak in of_get_display_timings()

• Severity: medium (CVSS 5.5 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: 2026-05-06 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: of: display_timing: fix refcount leak in of_get_display_timings() of_parse_phandle() returns a device_node with refcount incremented, which is stored in 'entry' and then copied to 'native_mode'. When the error paths at lines 184 or 192 jump to 'entryfail', native_mode's refcount is not decremented, causing a refcount leak. Fix this by changing the goto target from 'entryfail' to 'timingfail', which properly calls of_node_put(native_mode) before cleanup.

Affected products

• Linux kernel: from 3.9 before 5.10.252; from 5.11 before 5.15.202; from 5.16 before 6.1.165; from 6.2 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.16 — fixed in 5.10.252, 5.15.202, 6.1.165, 6.12.75, 6.18.16, 6.19.6

How to fix

Upgrade to a fixed version: Linux kernel 5.10.252, 5.15.202, 6.1.165, 6.12.75. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/20881ad42e651c69d89eb38a2042838187900fd6
• https://git.kernel.org/stable/c/2b22e4fe1273c24f405ed7903349c4bbd82b6368
• https://git.kernel.org/stable/c/3ed019654234edb8625c05d05e15d40f74e64f70
• https://git.kernel.org/stable/c/69290f2d3999c5fa1a7f5d5593cfc5461fa3ee64
• https://git.kernel.org/stable/c/b5bdcc5afbff845834d04d651773cb6b47db5dd3
• https://git.kernel.org/stable/c/c5734f9030a8b1e13868d1641b5163d8e659306e
• https://git.kernel.org/stable/c/d6f34bbff07476c6abb8672c89d217824871c5ed
• https://git.kernel.org/stable/c/eacf9840ae1285a1ef47eb0ce16d786e542bd4d7

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