Description
In the Linux kernel, the following vulnerability has been resolved: drm/sun4i: dsi: Prevent underflow when computing packet sizes Currently, the packet overhead is subtracted using unsigned arithmetic. With a short sync pulse, this could underflow and wrap around to near the maximal u16 value. Fix this by using signed subtraction. The call to max() will correctly handle any negative numbers that are produced. Apply the same fix to the other timings, even though those subtractions are less likely to underflow.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
133add5b5ad42b7bb5fcd59d681aef6475d08600 to < a1e7908f78f5a7f53f8cd83c7dcdfec974c95f26affected133add5b5ad42b7bb5fcd59d681aef6475d08600 to < 98e28de472ef248352f04f87e29e634ebb0ec240affected133add5b5ad42b7bb5fcd59d681aef6475d08600 to < fb837f5b83461624e525727a8f4add14b201147eaffected133add5b5ad42b7bb5fcd59d681aef6475d08600 to < 82a1356a933d8443139f8886f11b63c974a09a67affected
Linux Linux
Default version status: affected
4.18affected0 to < 4.18unaffected5.10.138 to ≤ 5.10.*unaffected5.15.63 to ≤ 5.15.*unaffected5.19.4 to ≤ 5.19.*unaffected6.0 to ≤ *unaffected