Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: sync RX data at the hardware packet offset mvpp2 programs the RX queue packet offset, so hardware writes received data at dma_addr + MVPP2_SKB_HEADROOM. The current CPU sync starts at dma_addr and only covers rx_bytes + MVPP2_MH_SIZE bytes, which syncs the unused headroom and misses the same number of bytes at the packet tail. On non-coherent DMA systems this can leave the CPU reading stale cache contents for the end of the received frame. Use dma_sync_single_range_for_cpu() with MVPP2_SKB_HEADROOM as the range offset so the sync covers the Marvell header and packet data actually written by hardware.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e1921168bbd4810de4197446e52f652cd0dd9541 before 60412bdd1b2576659eac23a23d2d9ff96228a643; affected e1921168bbd4810de4197446e52f652cd0dd9541 before 19f8bc139e9b149d1e5bf75ae761d1bb8dd3e7d8; affected e1921168bbd4810de4197446e52f652cd0dd9541 before a3ad9b5767c89531fc7dae951b51b0933dcf7051; affected e1921168bbd4810de4197446e52f652cd0dd9541 before bede0f481b9137d73d1cf64309cbe4b94818a5d6; affected e1921168bbd4810de4197446e52f652cd0dd9541 before 23548007b3c66d628fc7d6b80d1e23be04ea10d9; affected e1921168bbd4810de4197446e52f652cd0dd9541 before a13199fa224e9f776f4005d5037df03aa9ea8f37; affected e1921168bbd4810de4197446e52f652cd0dd9541 before e302206ad84a407a7e5f3f6fe767ff5efaace689; affected e1921168bbd4810de4197446e52f652cd0dd9541 before 180235600934bef6add3be637c296d6cf3272e67 |
| Linux / Linux | affected 5.5; unaffected 0 before 5.5; unaffected 5.10.259 through 5.10.*; unaffected 5.15.210 through 5.15.*; unaffected 6.1.176 through 6.1.*; unaffected 6.6.143 through 6.6.*; unaffected 6.12.94 through 6.12.*; unaffected 6.18.36 through 6.18.*; unaffected 7.0.13 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/60412bdd1b2576659eac23a23d2d9ff96228a643
- https://git.kernel.org/stable/c/19f8bc139e9b149d1e5bf75ae761d1bb8dd3e7d8
- https://git.kernel.org/stable/c/a3ad9b5767c89531fc7dae951b51b0933dcf7051
- https://git.kernel.org/stable/c/bede0f481b9137d73d1cf64309cbe4b94818a5d6
- https://git.kernel.org/stable/c/23548007b3c66d628fc7d6b80d1e23be04ea10d9
- https://git.kernel.org/stable/c/a13199fa224e9f776f4005d5037df03aa9ea8f37
- https://git.kernel.org/stable/c/e302206ad84a407a7e5f3f6fe767ff5efaace689
- https://git.kernel.org/stable/c/180235600934bef6add3be637c296d6cf3272e67
ADP enrichment
No English description supplied.
No references supplied.