"value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntunnels: fix out of bounds access when building IPv6 PMTU error\n\nIf the ICMPv6 error is built from a non-linear skb we get the following\nsplat,\n\n BUG: KASAN: slab-out-of-bounds in do_csum+0x220/0x240\n Read of size 4 at addr ffff88811d402c80 by task netperf/820\n CPU: 0 PID: 820 Comm: netperf Not tainted 6.8.0-rc1+ #543\n ...\n kasan_report+0xd8/0x110\n do_csum+0x220/0x240\n csum_partial+0xc/0x20\n skb_tunnel_check_pmtu+0xeb9/0x3280\n vxlan_xmit_one+0x14c2/0x4080\n vxlan_xmit+0xf61/0x5c00\n dev_hard_start_xmit+0xfb/0x510\n __dev_queue_xmit+0x7cd/0x32a0\n br_dev_queue_push_xmit+0x39d/0x6a0\n\nUse skb_checksum instead of csum_partial who cannot deal with non-linear\nSKBs."
"value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: t\u00faneles: corrige el acceso fuera de los l\u00edmites al compilar el error IPv6 PMTU Si el error ICMPv6 se genera a partir de un skb no lineal, obtenemos el siguiente s\u00edmbolo, ERROR: KASAN: slab-out- fuera de los l\u00edmites en do_csum+0x220/0x240 Lectura de tama\u00f1o 4 en la direcci\u00f3n ffff88811d402c80 por tarea netperf/820 CPU: 0 PID: 820 Comm: netperf Not tainted 6.8.0-rc1+ #543 ... kasan_report+0xd8/0x110 do_csum+0x220 /0x240 csum_partial+0xc/0x20 skb_tunnel_check_pmtu+0xeb9/0x3280 vxlan_xmit_one+0x14c2/0x4080 vxlan_xmit+0xf61/0x5c00 dev_hard_start_xmit+0xfb/0x510 __dev_queue_xmit+0x7cd/0x32 a0 br_dev_queue_push_xmit+0x39d/0x6a0 Utilice skb_checksum en lugar de csum_partial, que no puede manejar SKB no lineales."