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LIN1023-7635 : Security Advisory - linux - CVE-2024-42247

Created: Aug 7, 2024    Updated: Sep 15, 2024
Resolved Date: Aug 7, 2024
Found In Version: 10.23.30.1
Fix Version: 10.23.30.13
Severity: Standard
Applicable for: Wind River Linux LTS 23
Component/s: Kernel

Description

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]

CREATE(Triage):(User=admin) [CVE-2024-42247 (https://nvd.nist.gov/vuln/detail/CVE-2024-42247)

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