Hello, syzbot found the following issue on: HEAD commit: f40ddce8 Linux 5.11 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11261a4cd00000 kernel config: https://syzkaller.appspot.com/x/.config?x=67894355b1dbeb07 dashboard link: https://syzkaller.appspot.com/bug?extid=ac5c11d2959a8b3c4806 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ac5c11d2959a8b3c4806@xxxxxxxxxxxxxxxxxxxxxxxxx netlink: 164 bytes leftover after parsing attributes in process `syz-executor.1'. Unable to handle kernel paging request at virtual address dfff800000000000 Mem abort info: ESR = 0x96000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 [dfff800000000000] address between user and kernel address ranges Internal error: Oops: 96000004 [#1] PREEMPT SMP Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 5366 Comm: syz-executor.1 Not tainted 5.11.0-syzkaller #0 Hardware name: linux,dummy-virt (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO BTYPE=--) pc : nla_len include/net/netlink.h:1148 [inline] pc : nla_parse_nested_deprecated include/net/netlink.h:1231 [inline] pc : nl802154_del_llsec_key+0x138/0x2c0 net/ieee802154/nl802154.c:1595 lr : genl_family_rcv_msg_doit+0x1b8/0x2a0 net/netlink/genetlink.c:739 sp : ffff000019c57280 x29: ffff000019c57280 x28: ffff80001aa29cc0 x27: ffff000019c576d0 x26: ffff000012280000 x25: 1fffe0000338aeb2 x24: 1fffe0000338ae84 x23: ffff800018380c80 x22: ffff000016174c10 x21: ffff00000fca8000 x20: 0000000000000000 x19: 1fffe0000338ae5a x18: 0000000000000001 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 1fffe0000338adf4 x13: 0000000000000000 x12: ffff60000338ae55 x11: 1fffe0000338ae54 x10: ffff60000338ae54 x9 : 000000000000f1f1 x8 : 000000000000f2f2 x7 : 00000000f3000000 x6 : 1fffe0000338ae90 x5 : 00000000f3f3f3f3 x4 : 0000000000000000 x3 : dfff800000000000 x2 : 0000000000000004 x1 : ffff000019c57450 x0 : 0000000000000001 Call trace: nla_data include/net/netlink.h:1139 [inline] nla_parse_nested_deprecated include/net/netlink.h:1231 [inline] nl802154_del_llsec_key+0x138/0x2c0 net/ieee802154/nl802154.c:1595 genl_family_rcv_msg_doit+0x1b8/0x2a0 net/netlink/genetlink.c:739 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0x24c/0x430 net/netlink/genetlink.c:800 netlink_rcv_skb+0x198/0x34c net/netlink/af_netlink.c:2494 genl_rcv+0x38/0x50 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x3e0/0x670 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x610/0xa20 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xc0/0xf4 net/socket.c:672 ____sys_sendmsg+0x548/0x6d0 net/socket.c:2345 ___sys_sendmsg+0xf4/0x170 net/socket.c:2399 __sys_sendmsg+0xbc/0x14c net/socket.c:2432 __do_sys_sendmsg net/socket.c:2441 [inline] __se_sys_sendmsg net/socket.c:2439 [inline] __arm64_sys_sendmsg+0x70/0xa0 net/socket.c:2439 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall arch/arm64/kernel/syscall.c:49 [inline] el0_svc_common.constprop.0+0x110/0x3c0 arch/arm64/kernel/syscall.c:159 do_el0_svc+0xa4/0xd0 arch/arm64/kernel/syscall.c:198 el0_svc+0x20/0x30 arch/arm64/kernel/entry-common.c:365 el0_sync_handler+0x1a4/0x1ac arch/arm64/kernel/entry-common.c:381 el0_sync+0x174/0x180 arch/arm64/kernel/entry.S:699 Code: f2fbffe3 92400a80 11000400 91001282 (38e36883) ---[ end trace dde92eef2b40d315 ]--- --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
