What’s Vulnerable › Vulnerabilities

CVE-2026-72362: drm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry()

• Severity: unknown
• 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: 2026-08-15 · updated 2026-08-17

Description

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry() The page-table walk framework may pass a NULL *child pointer for unpopulated entries. xe_pt_zap_ptes_entry() called container_of(*child) before checking for NULL, then dereferenced the result, causing a crash. Move the container_of() call after a NULL guard, so the function returns early instead of proceeding with an invalid pointer. XE_WARN_ON is kept to help root cause the issue, but we now bail instead of crashing the driver. v2: Comment that triggering XE_WARN_ON is unexpected behavior (Matt Brost) (cherry picked from commit b9297d19d9df5d4b6c994648570c5dcd1cac68ff)

Affected products

• Linux kernel: 6.8 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3feeb667197bd58a17f4edfdbcad249ffcb3c864
• https://git.kernel.org/stable/c/78b1074966d290d4517f42bc81e13c4349368d12
• https://git.kernel.org/stable/c/d94b9922b2ae5ee6e900f8da0bd537b251c6110c
• https://git.kernel.org/stable/c/ff330ce16c846b70164ff0eb544c81219d4c5c08

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