CVSS 9.8 · Critical EPSS 0,55%
Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 9.8 (Critical) menurut CNA.
In the Linux kernel, the following vulnerability has been resolved: net: ti: icssg-prueth: fix use-after-free of CPPI descriptor in RX path cppi5_hdesc_get_psdata() returns a pointer into the CPPI descriptor. In both emac_rx_packet() and emac_rx_packet_zc(), the descriptor is freed via k3_cppi_desc_pool_free() before the psdata pointer is used by emac_rx_timestamp(), which dereferences psdata[0] and psdata[1]. This constitutes a use-after-free on every received packet that goes through the timestamp path. Defer the descriptor free until after all accesses through the psdata pointer are complete. For emac_rx_packet(), move the free into the requeue label so both early-exit and success paths free the descriptor after all accesses are done. For emac_rx_packet_zc(), move the free to the end of the loop body after emac_dispatch_skb_zc() (which calls emac_rx_timestamp()) has returned.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 6.15.1 hingga sebelum 6.19.11 |
| linux | linux kernel | Versi 6.15 |
| linux | linux kernel | Versi 7.0 rc1 |
| linux | linux kernel | Versi 7.0 rc2 |
| linux | linux kernel | Versi 7.0 rc3 |
| linux | linux kernel | Versi 7.0 rc4 |
| linux | linux kernel | Versi 7.0 rc5 |
| linux | linux kernel | Versi 7.0 rc6 |
| linux | linux kernel | Versi 7.0 rc7 |