netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. ------------[ cut here ]------------ wlan1: Failed check-sdata-in-driver check, flags: 0x4 WARNING: CPU: 0 PID: 57548 at net/mac80211/driver-ops.h:172 drv_bss_info_changed+0x554/0x5f0 net/mac80211/driver-ops.h:172 Modules linked in: CPU: 0 PID: 57548 Comm: syz-executor.0 Not tainted 5.10.237 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:drv_bss_info_changed+0x554/0x5f0 net/mac80211/driver-ops.h:172 Code: 49 8b ac 24 a8 03 00 00 48 85 ed 74 3e e8 64 6d 8b fd e8 5f 6d 8b fd 8b 54 24 04 48 89 ee 48 c7 c7 20 e1 95 84 e8 55 0c 25 00 <0f> 0b e9 c7 fd ff ff 4c 89 ff e8 0d 73 b7 fd e9 97 fb ff ff 4c 89 RSP: 0018:ffff88804de575d0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff8129e6f3 RDI: ffffed1009bcaeac RBP: ffff88802019c000 R08: 0000000000000001 R09: ffff88806ce37b0f R10: 0000000000000000 R11: 0000000000000001 R12: ffff88802019cbc0 R13: 0000000000400000 R14: ffff88802019dda0 R15: ffff88802019dd98 FS: 00007fb0480ce700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001200 CR3: 000000004a096000 CR4: 0000000000350ef0 Call Trace: ieee80211_bss_info_change_notify+0x9a/0xc0 net/mac80211/main.c:212 ieee80211_ocb_leave+0x1ed/0x340 net/mac80211/ocb.c:228 rdev_leave_ocb net/wireless/rdev-ops.h:382 [inline] __cfg80211_leave_ocb+0x1d6/0x570 net/wireless/ocb.c:70 cfg80211_leave_ocb+0x4e/0x70 net/wireless/ocb.c:84 cfg80211_change_iface+0x843/0xf90 net/wireless/util.c:1064 nl80211_set_interface+0x67c/0x8f0 net/wireless/nl80211.c:3816 genl_family_rcv_msg_doit+0x22d/0x330 net/netlink/genetlink.c:739 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0x36a/0x5a0 net/netlink/genetlink.c:800 netlink_rcv_skb+0x14b/0x430 net/netlink/af_netlink.c:2485 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1307 [inline] netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1333 netlink_sendmsg+0x90f/0xe00 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0x154/0x190 net/socket.c:663 __sys_sendto+0x21c/0x320 net/socket.c:2005 __do_sys_sendto net/socket.c:2017 [inline] __se_sys_sendto net/socket.c:2013 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2013 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 57629 Comm: syz-executor.6 Not tainted 5.10.237 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 entry_SYSCALL_64_after_hwframe+0x67/0xd1 _copy_from_user+0x2e/0x1b0 lib/usercopy.c:15 copy_from_user include/linux/uaccess.h:192 [inline] move_addr_to_kernel.part.0+0x31/0x110 net/socket.c:198 RIP: 0033:0x7fb04ab0b8ac move_addr_to_kernel net/socket.c:196 [inline] __sys_sendto+0x166/0x320 net/socket.c:1996 Code: fa fa ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 20 fb ff ff 48 8b RSP: 002b:00007fb0480ccf80 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fb0480cd0f0 RCX: 00007fb04ab0b8ac __do_sys_sendto net/socket.c:2017 [inline] __se_sys_sendto net/socket.c:2013 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2013 RDX: 0000000000000024 RSI: 00007fb0480cd140 RDI: 0000000000000008 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fcbfe44c8ac RBP: 0000000000000000 R08: 00007fb0480ccfd4 R09: 000000000000000c Code: fa fa ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 20 fb ff ff 48 8b RSP: 002b:00007fcbfba0e020 EFLAGS: 00000293 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fcbfba0e110 RCX: 00007fcbfe44c8ac RDX: 0000000000000020 RSI: 00007fcbfba0e160 RDI: 0000000000000005 RBP: 0000000000000000 R08: 00007fcbfba0e074 R09: 000000000000000c R13: 00007fb0480cd140 R14: 0000000000000008 R15: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fcbfba0e0c8 R13: 00007fcbfba0e160 R14: 0000000000000005 R15: 0000000000000000 irq event stamp: 5257 hardirqs last enabled at (5265): [] console_unlock+0x92d/0xb40 kernel/printk/printk.c:2567 hardirqs last disabled at (5274): [] console_unlock+0x839/0xb40 kernel/printk/printk.c:2482 softirqs last enabled at (3590): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (3455): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace c0ca1f800be037f5 ]--- FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 57699 Comm: syz-executor.5 Tainted: G W 5.10.237 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x20 mm/slab_common.c:1200 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x5b/0x310 mm/slub.c:2909 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc_trace+0x151/0x320 mm/slub.c:2921 kmalloc include/linux/slab.h:552 [inline] kzalloc include/linux/slab.h:664 [inline] call_usermodehelper_setup+0xa2/0x2f0 kernel/umh.c:363 call_modprobe kernel/kmod.c:93 [inline] __request_module+0x3f9/0x920 kernel/kmod.c:170 ctrl_getfamily+0x1e0/0x5a0 net/netlink/genetlink.c:1046 genl_family_rcv_msg_doit+0x22d/0x330 net/netlink/genetlink.c:739 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0x36a/0x5a0 net/netlink/genetlink.c:800 netlink_rcv_skb+0x14b/0x430 net/netlink/af_netlink.c:2485 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1307 [inline] netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1333 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready netlink_sendmsg+0x90f/0xe00 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0x154/0x190 net/socket.c:663 __sys_sendto+0x21c/0x320 net/socket.c:2005 __do_sys_sendto net/socket.c:2017 [inline] __se_sys_sendto net/socket.c:2013 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2013 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f609fde58ac Code: fa fa ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 20 fb ff ff 48 8b RSP: 002b:00007f609d3a7020 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f609d3a7110 RCX: 00007f609fde58ac RDX: 0000000000000024 RSI: 00007f609d3a7160 RDI: 0000000000000004 RBP: 0000000000000000 R08: 00007f609d3a7074 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 00007f609d3a70c8 R13: 00007f609d3a7160 R14: 0000000000000004 R15: 0000000000000000 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=57745 comm=syz-executor.0 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready ---------------- Code disassembly (best guess), 3 bytes skipped: 0: ff 44 8b 4c incl 0x4c(%rbx,%rcx,4) 4: 24 2c and $0x2c,%al 6: 4c 8b 44 24 20 mov 0x20(%rsp),%r8 b: 89 c5 mov %eax,%ebp d: 44 8b 54 24 28 mov 0x28(%rsp),%r10d 12: 48 8b 54 24 18 mov 0x18(%rsp),%rdx 17: b8 2c 00 00 00 mov $0x2c,%eax 1c: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 21: 8b 7c 24 08 mov 0x8(%rsp),%edi 25: 0f 05 syscall * 27: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 2d: 77 34 ja 0x63 2f: 89 ef mov %ebp,%edi 31: 48 89 44 24 08 mov %rax,0x8(%rsp) 36: e8 20 fb ff ff callq 0xfffffb5b 3b: 48 rex.W 3c: 8b .byte 0x8b