netlink: 16602 bytes leftover after parsing attributes in process `syz-executor433'. ================================================================== BUG: KASAN: vmalloc-out-of-bounds in nla_get_u32 include/net/netlink.h:1541 [inline] BUG: KASAN: vmalloc-out-of-bounds in nl802154_dump_wpan_phy_parse net/ieee802154/nl802154.c:563 [inline] BUG: KASAN: vmalloc-out-of-bounds in nl802154_dump_wpan_phy+0x80e/0x8e0 net/ieee802154/nl802154.c:593 Read of size 4 at addr ffffc90001e09018 by task syz-executor433/7129 CPU: 0 PID: 7129 Comm: syz-executor433 Not tainted 5.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1f0/0x31e lib/dump_stack.c:118 print_address_description+0x66/0x5a0 mm/kasan/report.c:383 __kasan_report mm/kasan/report.c:513 [inline] kasan_report+0x132/0x1d0 mm/kasan/report.c:530 nla_get_u32 include/net/netlink.h:1541 [inline] nl802154_dump_wpan_phy_parse net/ieee802154/nl802154.c:563 [inline] nl802154_dump_wpan_phy+0x80e/0x8e0 net/ieee802154/nl802154.c:593 genl_lock_dumpit+0x86/0xa0 net/netlink/genetlink.c:575 netlink_dump+0x4be/0x10d0 net/netlink/af_netlink.c:2245 __netlink_dump_start+0x538/0x700 net/netlink/af_netlink.c:2353 genl_family_rcv_msg_dumpit net/netlink/genetlink.c:638 [inline] genl_family_rcv_msg net/netlink/genetlink.c:733 [inline] genl_rcv_msg+0xb03/0xe00 net/netlink/genetlink.c:753 netlink_rcv_skb+0x190/0x3a0 net/netlink/af_netlink.c:2469 genl_rcv+0x24/0x40 net/netlink/genetlink.c:764 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x786/0x940 net/netlink/af_netlink.c:1329 netlink_sendmsg+0xa57/0xd70 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x519/0x800 net/socket.c:2352 ___sys_sendmsg net/socket.c:2406 [inline] __sys_sendmsg+0x2b1/0x360 net/socket.c:2439 do_syscall_64+0x73/0xe0 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x441409 Code: Bad RIP value. RSP: 002b:00007ffca2622278 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441409 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000000a901 R08: 0000000100000000 R09: 0000000100000000 R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402220 R13: 00000000004022b0 R14: 0000000000000000 R15: 0000000000000000 Memory state around the buggy address: ffffc90001e08f00: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 ffffc90001e08f80: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 >ffffc90001e09000: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 ^ ffffc90001e09080: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 ffffc90001e09100: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 ==================================================================