High · published August 7, 2024
In the Linux kernel, the following vulnerability has been resolved:
wireguard: allowedips: avoid unaligned 64-bit memory accesses
On the parisc platform, the kernel issues kernel warnings because
swap_endian() tries to load a 128-bit IPv6 address from an unaligned
memory location:
Kernel: unaligned access to 0x55f4688c in wg_allowedips_insert_v6+0x2c/0x80 [wireguard] (iir 0xf3010df)
Kernel: unaligned access to 0x55f46884 in wg_allowedips_insert_v6+0x38/0x80 [wireguard] (iir 0xf2010dc)
Avoid such unaligned memory accesses by instead using the
get_unaligned_be64() helper macro.
[Jason: replace src[8] in original patch with src+8]
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 5.6, < 5.10.222 | 5.10.222 |
| linux/linux_kernel | ≥ 5.11, < 5.15.163 | 5.15.163 |
| linux/linux_kernel | ≥ 5.16, < 6.1.100 | 6.1.100 |
| linux/linux_kernel | ≥ 6.2, < 6.6.41 | 6.6.41 |
| linux/linux_kernel | ≥ 6.7, < 6.9.10 | 6.9.10 |