kernel: ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress()

A flaw was found in the Linux kernel's IPv6 Routing Protocol for Low-Power and Lossy Networks RPL segment routing header SRH decompression function, ipv6rplsrhdecompress. An integer overflow occurs when processing a specially crafted IPv6 packet, causing the header length calculation to truncate...

kernel: ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress()

A flaw was found in the Linux kernel's IPv6 Routing Protocol for Low-Power and Lossy Networks RPL segment routing header SRH decompression function, ipv6rplsrhdecompress. An integer overflow occurs when processing a specially crafted IPv6 packet, causing the header length calculation to truncate...

kernel: ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress()

A flaw was found in the Linux kernel's IPv6 Routing Protocol for Low-Power and Lossy Networks RPL segment routing header SRH decompression function, ipv6rplsrhdecompress. An integer overflow occurs when processing a specially crafted IPv6 packet, causing the header length calculation to truncate...

CVE-2026-63984: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: fix hdrlen overflow in ipv6rplsrhdecompress ipv6rplsrhdecompress computes: outhdr-hdrlen = n + 1 sizeofstruct in6addr 3; hdrlen is u8. For n = 127 the result exceeds 255 and silently truncates. With n=127 cmpri=15,...