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: 1 PID: 29506 at net/mac80211/driver-ops.h:172 drv_bss_info_changed+0x554/0x5f0 net/mac80211/driver-ops.h:172 Modules linked in: CPU: 1 PID: 29506 Comm: syz-executor.0 Not tainted 5.10.232 #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 94 83 8c fd e8 8f 83 8c fd 8b 54 24 04 48 89 ee 48 c7 c7 80 c3 95 84 e8 9c 06 25 00 <0f> 0b e9 c7 fd ff ff 4c 89 ff e8 2d 79 b8 fd e9 97 fb ff ff 4c 89 RSP: 0018:ffff88805218f5c8 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff8129ea83 RDI: ffffed100a431eab RBP: ffff88801765c000 R08: 0000000000000001 R09: ffff88806cf37b0f R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801765cbc0 R13: 0000000000400000 R14: ffff88801765dda0 R15: ffff88801765dd98 FS: 00007f98b8aa4700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f98b8aa2ff8 CR3: 0000000052098000 CR4: 0000000000350ee0 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:3811 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+0x33c/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+0x549/0x7f0 net/netlink/af_netlink.c:1333 netlink_sendmsg+0x90f/0xdf0 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: 0033:0x7f98bb4e18ac 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:00007f98b8aa2f80 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f98b8aa30f0 RCX: 00007f98bb4e18ac RDX: 0000000000000024 RSI: 00007f98b8aa3140 RDI: 0000000000000006 RBP: 0000000000000000 R08: 00007f98b8aa2fd4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007f98b8aa3140 R14: 0000000000000006 R15: 0000000000000000 irq event stamp: 4963 hardirqs last enabled at (4973): [] console_unlock+0x92d/0xb40 kernel/printk/printk.c:2567 hardirqs last disabled at (4988): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (3326): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (3229): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 471799bb572ff9f3 ]--- 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 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 29517 Comm: syz-executor.5 Tainted: G W 5.10.232 #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 copyin lib/iov_iter.c:155 [inline] _copy_from_iter_full+0x201/0xa60 lib/iov_iter.c:785 copy_from_iter_full include/linux/uio.h:169 [inline] memcpy_from_msg include/linux/skbuff.h:3618 [inline] netlink_sendmsg+0x879/0xdf0 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0x154/0x190 net/socket.c:663 ____sys_sendmsg+0x70d/0x870 net/socket.c:2378 ___sys_sendmsg+0xf3/0x170 net/socket.c:2432 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2461 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f63084d9b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6305a4f188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f63085ecf60 RCX: 00007f63084d9b19 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000004 RBP: 00007f6305a4f1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe722159ff R14: 00007f6305a4f300 R15: 0000000000022000 EXT4-fs (loop3): fragment/cluster size (65536) != block size (4096) 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 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 29523 Comm: syz-executor.2 Tainted: G W 5.10.232 #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+0x159/0x310 mm/slub.c:2909 skb_clone+0x14f/0x3d0 net/core/skbuff.c:1457 dev_queue_xmit_nit+0x3a7/0xb00 net/core/dev.c:2343 xmit_one net/core/dev.c:3595 [inline] dev_hard_start_xmit+0xab/0x6f0 net/core/dev.c:3616 sch_direct_xmit+0x25f/0x790 net/sched/sch_generic.c:336 qdisc_restart net/sched/sch_generic.c:401 [inline] __qdisc_run+0x4aa/0x1570 net/sched/sch_generic.c:409 qdisc_run include/net/pkt_sched.h:127 [inline] qdisc_run include/net/pkt_sched.h:124 [inline] __dev_xmit_skb net/core/dev.c:3811 [inline] __dev_queue_xmit+0xd43/0x2690 net/core/dev.c:4167 neigh_hh_output include/net/neighbour.h:493 [inline] neigh_output include/net/neighbour.h:507 [inline] ip6_finish_output2+0x17b4/0x1fe0 net/ipv6/ip6_output.c:145 __ip6_finish_output.part.0+0x4f7/0xbc0 net/ipv6/ip6_output.c:216 __ip6_finish_output include/linux/skbuff.h:969 [inline] ip6_finish_output net/ipv6/ip6_output.c:226 [inline] NF_HOOK_COND include/linux/netfilter.h:285 [inline] ip6_output+0x3b8/0x7e0 net/ipv6/ip6_output.c:249 dst_output include/net/dst.h:436 [inline] ip6_local_out+0xb4/0x1a0 net/ipv6/output_core.c:161 ip6_send_skb+0x112/0x460 net/ipv6/ip6_output.c:1955 ip6_push_pending_frames+0xbd/0xf0 net/ipv6/ip6_output.c:1976 rawv6_push_pending_frames net/ipv6/raw.c:617 [inline] rawv6_sendmsg+0x2bcb/0x3b20 net/ipv6/raw.c:961 inet_sendmsg+0x11d/0x140 net/ipv4/af_inet.c:828 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0x13c/0x190 net/socket.c:663 ____sys_sendmsg+0x70d/0x870 net/socket.c:2378 __sys_sendmsg_sock+0x26/0x40 net/socket.c:2444 io_sendmsg+0x1e6/0x830 io_uring/io_uring.c:4823 io_issue_sqe+0x3b3/0x77b0 io_uring/io_uring.c:6778 __io_queue_sqe+0x90/0x9d0 io_uring/io_uring.c:7071 io_queue_sqe io_uring/io_uring.c:7122 [inline] io_submit_sqe io_uring/io_uring.c:7299 [inline] io_submit_sqes+0x44aa/0x8610 io_uring/io_uring.c:7405 __do_sys_io_uring_enter+0x6b2/0x1890 io_uring/io_uring.c:9943 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f84cf694b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f84ccc0a188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 00007f84cf7a7f60 RCX: 00007f84cf694b19 RDX: 0000000000000000 RSI: 00000000000058ab RDI: 0000000000000004 RBP: 00007f84ccc0a1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffc547b76df R14: 00007f84ccc0a300 R15: 0000000000022000