netlink: 8 bytes leftover after parsing attributes in process `syz.1.88'. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4368 at net/wireless/core.h:220 wdev_lock+0xd0/0xe8 net/wireless/core.h:220 Modules linked in: CPU: 1 PID: 4368 Comm: syz.1.88 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : wdev_lock+0xd0/0xe8 net/wireless/core.h:220 lr : wdev_lock+0xd0/0xe8 net/wireless/core.h:220 sp : ffff8000219a6ca0 x29: ffff8000219a6ca0 x28: dfff800000000000 x27: dfff800000000000 x26: 1fffe0001affd000 x25: ffff0000d67d0c90 x24: 0000000000000000 x23: 1fffe0001acfa193 x22: ffff700004334d9c x21: 00000000000007d0 x20: 0000000000000000 x19: ffff0000d67d0c90 x18: 0000000000000000 x17: 0000000000000002 x16: ffff8000084c5eb8 x15: 0000000000000002 x14: ffff0000c21db680 x13: 0000000000ff0100 x12: 0000000000040000 x11: 000000000000396c x10: ffff80002125d000 x9 : 000000000000396d x8 : ffff80001131bdc0 x7 : 0000000000000000 x6 : 00000000000007d0 x5 : ffff0000c0ee0090 x4 : ffff8000219a6d04 x3 : ffff80000ab195c0 x2 : 0000000000000004 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: wdev_lock+0xd0/0xe8 net/wireless/core.h:220 nl80211_send_iface+0x68c/0xccc net/wireless/nl80211.c:3631 nl80211_dump_interface+0x38c/0x5cc net/wireless/nl80211.c:3735 netlink_dump+0x4a8/0xad0 net/netlink/af_netlink.c:2279 __netlink_dump_start+0x474/0x6d4 net/netlink/af_netlink.c:2382 genl_family_rcv_msg_dumpit net/netlink/genetlink.c:689 [inline] genl_family_rcv_msg net/netlink/genetlink.c:772 [inline] genl_rcv_msg+0xa80/0x1018 net/netlink/genetlink.c:792 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2503 genl_rcv+0x38/0x50 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1352 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1920 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2431 ___sys_sendmsg+0x214/0x294 net/socket.c:2485 __sys_sendmsg net/socket.c:2514 [inline] __do_sys_sendmsg net/socket.c:2523 [inline] __se_sys_sendmsg net/socket.c:2521 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2521 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 124 hardirqs last enabled at (123): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (124): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (88): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (82): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace a4a8b4dc18ade52e ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4368 at net/wireless/core.h:228 wdev_unlock+0xcc/0xe4 net/wireless/core.h:228 Modules linked in: CPU: 1 PID: 4368 Comm: syz.1.88 Tainted: G W 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : wdev_unlock+0xcc/0xe4 net/wireless/core.h:228 lr : wdev_unlock+0xcc/0xe4 net/wireless/core.h:228 sp : ffff8000219a6ca0 x29: ffff8000219a6ca0 x28: dfff800000000000 x27: dfff800000000000 x26: 1fffe0001affd000 x25: ffff0000d67d0c90 x24: 0000000000000001 x23: 0000000000000000 x22: ffff700004334d9c x21: 1fffe0001acfa1ca x20: 0000000000000000 x19: ffff0000d67d0c90 x18: 0000000000000000 x17: 0000000000000002 x16: ffff8000084c5eb8 x15: 0000000000000009 x14: 1ffff0000295806a x13: dfff800000000000 x12: 0000000000040000 x11: 000000000002382c x10: ffff80002125d000 x9 : 000000000002382d x8 : ffff80001131bea4 x7 : 0000000000000000 x6 : 0000000010101010 x5 : ffff0000c0ee009a x4 : ffff0000cda78d25 x3 : ffff80000ab195c0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: wdev_unlock+0xcc/0xe4 net/wireless/core.h:228 nl80211_send_iface+0x984/0xccc net/wireless/nl80211.c:3658 nl80211_dump_interface+0x38c/0x5cc net/wireless/nl80211.c:3735 netlink_dump+0x4a8/0xad0 net/netlink/af_netlink.c:2279 __netlink_dump_start+0x474/0x6d4 net/netlink/af_netlink.c:2382 genl_family_rcv_msg_dumpit net/netlink/genetlink.c:689 [inline] genl_family_rcv_msg net/netlink/genetlink.c:772 [inline] genl_rcv_msg+0xa80/0x1018 net/netlink/genetlink.c:792 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2503 genl_rcv+0x38/0x50 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1352 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1920 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2431 ___sys_sendmsg+0x214/0x294 net/socket.c:2485 __sys_sendmsg net/socket.c:2514 [inline] __do_sys_sendmsg net/socket.c:2523 [inline] __se_sys_sendmsg net/socket.c:2521 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2521 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 222 hardirqs last enabled at (221): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline] hardirqs last enabled at (221): [] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91 hardirqs last disabled at (222): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (216): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (216): [] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586 softirqs last disabled at (127): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (127): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (127): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (127): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace a4a8b4dc18ade52f ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4368 at net/wireless/core.h:220 wdev_lock+0xd0/0xe8 net/wireless/core.h:220 Modules linked in: CPU: 0 PID: 4368 Comm: syz.1.88 Tainted: G W 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : wdev_lock+0xd0/0xe8 net/wireless/core.h:220 lr : wdev_lock+0xd0/0xe8 net/wireless/core.h:220 sp : ffff8000219a6ca0 x29: ffff8000219a6ca0 x28: dfff800000000000 x27: dfff800000000000 x26: 1fffe0001b02b000 x25: ffff0000e6d54c90 x24: 0000000000000000 x23: 1fffe0001cdaa993 x22: ffff700004334d9c x21: 00000000000007d0 x20: 0000000000000000 x19: ffff0000e6d54c90 x18: 0000000000000000 x17: 0000000000000002 x16: ffff8000084c5eb8 x15: 0000000000000002 x14: ffff0000c21db680 x13: 0000000000ff0100 x12: 0000000000040000 x11: 000000000003ffff x10: ffff80002125d000 x9 : 0000000000040000 x8 : ffff80001131bdc0 x7 : 0000000000000000 x6 : 00000000000007d0 x5 : ffff0000c0ee012c x4 : ffff8000219a6d04 x3 : ffff80000ab195c0 x2 : 0000000000000004 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: wdev_lock+0xd0/0xe8 net/wireless/core.h:220 nl80211_send_iface+0x68c/0xccc net/wireless/nl80211.c:3631 nl80211_dump_interface+0x38c/0x5cc net/wireless/nl80211.c:3735 netlink_dump+0x4a8/0xad0 net/netlink/af_netlink.c:2279 __netlink_dump_start+0x474/0x6d4 net/netlink/af_netlink.c:2382 genl_family_rcv_msg_dumpit net/netlink/genetlink.c:689 [inline] genl_family_rcv_msg net/netlink/genetlink.c:772 [inline] genl_rcv_msg+0xa80/0x1018 net/netlink/genetlink.c:792 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2503 genl_rcv+0x38/0x50 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1352 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1920 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2431 ___sys_sendmsg+0x214/0x294 net/socket.c:2485 __sys_sendmsg net/socket.c:2514 [inline] __do_sys_sendmsg net/socket.c:2523 [inline] __se_sys_sendmsg net/socket.c:2521 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2521 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 1214 hardirqs last enabled at (1213): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (1213): [] _raw_spin_unlock_irqrestore+0xac/0x158 kernel/locking/spinlock.c:194 hardirqs last disabled at (1214): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (1206): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (1206): [] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586 softirqs last disabled at (225): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (225): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (225): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (225): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace a4a8b4dc18ade530 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4368 at net/wireless/core.h:228 wdev_unlock+0xcc/0xe4 net/wireless/core.h:228 Modules linked in: CPU: 0 PID: 4368 Comm: syz.1.88 Tainted: G W 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : wdev_unlock+0xcc/0xe4 net/wireless/core.h:228 lr : wdev_unlock+0xcc/0xe4 net/wireless/core.h:228 sp : ffff8000219a6ca0 x29: ffff8000219a6ca0 x28: dfff800000000000 x27: dfff800000000000 x26: 1fffe0001b02b000 x25: ffff0000e6d54c90 x24: 0000000000000001 x23: 0000000000000000 x22: ffff700004334d9c x21: 1fffe0001cdaa9ca x20: 0000000000000000 x19: ffff0000e6d54c90 x18: 0000000000000000 x17: 0000000000000002 x16: ffff8000084c5eb8 x15: 0000000000000009 x14: 1ffff0000295806a x13: dfff800000000000 x12: 0000000000040000 x11: 000000000003ffff x10: ffff80002125d000 x9 : 0000000000040000 x8 : ffff80001131bea4 x7 : 0000000000000000 x6 : 0000000010101010 x5 : ffff0000c0ee0136 x4 : ffff0000e6d60725 x3 : ffff80000ab195c0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: wdev_unlock+0xcc/0xe4 net/wireless/core.h:228 nl80211_send_iface+0x984/0xccc net/wireless/nl80211.c:3658 nl80211_dump_interface+0x38c/0x5cc net/wireless/nl80211.c:3735 netlink_dump+0x4a8/0xad0 net/netlink/af_netlink.c:2279 __netlink_dump_start+0x474/0x6d4 net/netlink/af_netlink.c:2382 genl_family_rcv_msg_dumpit net/netlink/genetlink.c:689 [inline] genl_family_rcv_msg net/netlink/genetlink.c:772 [inline] genl_rcv_msg+0xa80/0x1018 net/netlink/genetlink.c:792 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2503 genl_rcv+0x38/0x50 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1352 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1920 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2431 ___sys_sendmsg+0x214/0x294 net/socket.c:2485 __sys_sendmsg net/socket.c:2514 [inline] __do_sys_sendmsg net/socket.c:2523 [inline] __se_sys_sendmsg net/socket.c:2521 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2521 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 1466 hardirqs last enabled at (1465): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline] hardirqs last enabled at (1465): [] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91 hardirqs last disabled at (1466): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (1460): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (1460): [] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586 softirqs last disabled at (1217): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (1217): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (1217): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (1217): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace a4a8b4dc18ade531 ]---