Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ice: Fix DMA mappings leak Fix leak, when user changes ring parameters. During reallocation of RX buffers, new DMA mappings are created for those buffers. New buffers with different RX ring count should substitute older ones, but those buffers were freed in ice_vsi_cfg_rxq and reallocated again with ice_alloc_rx_buf. kfree on rx_buf caused leak of already mapped DMA. Reallocate ZC with xdp_buf struct, when BPF program loads. Reallocate back to rx_buf, when BPF program unloads. If BPF program is loaded/unloaded and XSK pools are created, reallocate RX queues accordingly in XDP_SETUP_XSK_POOL handler. Steps for reproduction: while : do for ((i=0; i<=8160; i=i+32)) do ethtool -G enp130s0f0 rx $i tx $i sleep 0.5 ethtool -g enp130s0f0 done done
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 617f3e1b588c802517c236087561c6bcb0b4afd6 before 07f40e9f0ff342eb3e97d5c544783b7cb641689c; affected 617f3e1b588c802517c236087561c6bcb0b4afd6 before 7e753eb675f0523207b184558638ee2eed6c9ac2 |
| Linux / Linux | affected 5.16; unaffected 0 before 5.16; unaffected 5.19.9 through 5.19.*; unaffected 6.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/07f40e9f0ff342eb3e97d5c544783b7cb641689c
- https://git.kernel.org/stable/c/7e753eb675f0523207b184558638ee2eed6c9ac2
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.