CVE-2025-68759

Summary

In the Linux kernel, the following vulnerability has been resolved:

wifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring()

In rtl8180_init_rx_ring(), memory is allocated for skb packets and DMA allocations in a loop. When an allocation fails, the previously successful allocations are not freed on exit.

Fix that by jumping to err_free_rings label on error, which calls rtl8180_free_rx_ring() to free the allocations. Remove the free of rx_ring in rtl8180_init_rx_ring() error path, and set the freed priv->rx_buf entry to null, to avoid double free.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxf653211197f3841f383fa9757ef8ce182c6cf627 < 3677c01891fb0239361e444afee8398868e34bdfaffected
LinuxLinuxf653211197f3841f383fa9757ef8ce182c6cf627 < 89caaeee8dd95fae8bb4f4964e6fe3ca688500c4affected
LinuxLinuxf653211197f3841f383fa9757ef8ce182c6cf627 < a4fb7cca9837378878e6c94d9e7af019c8fdfcdbaffected
LinuxLinuxf653211197f3841f383fa9757ef8ce182c6cf627 < bf8513dfa31ea015c9cf415796dca2113d293840affected
LinuxLinuxf653211197f3841f383fa9757ef8ce182c6cf627 < ee7db11742b30641f21306105ad27a275e3c61d7affected
LinuxLinuxf653211197f3841f383fa9757ef8ce182c6cf627 < a813a74570212cb5f3a7d3b05c0cb0cd00bace1daffected
LinuxLinuxf653211197f3841f383fa9757ef8ce182c6cf627 < c9d1c4152e6d32fa74034464854bee262a60bc43affected
LinuxLinuxf653211197f3841f383fa9757ef8ce182c6cf627 < 9b5b9c042b30befc5b37e4539ace95af70843473affected
LinuxLinux2.6.25affected
LinuxLinux0 < 2.6.25unaffected
LinuxLinux5.10.248 <= 5.10.*unaffected
LinuxLinux5.15.198 <= 5.15.*unaffected
LinuxLinux6.1.160 <= 6.1.*unaffected
LinuxLinux6.6.120 <= 6.6.*unaffected
LinuxLinux6.12.63 <= 6.12.*unaffected
LinuxLinux6.17.13 <= 6.17.*unaffected
LinuxLinux6.18.2 <= 6.18.*unaffected
LinuxLinux6.19 <= *unaffected

Weaknesses

References