------------[ cut here ]------------ wlan1: Failed check-sdata-in-driver check, flags: 0x4 WARNING: CPU: 1 PID: 5320 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: 5320 Comm: syz-executor.6 Not tainted 5.10.240 #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 3c 8b fd e8 5f 3c 8b fd 8b 54 24 04 48 89 ee 48 c7 c7 20 f2 95 84 e8 fc 09 25 00 <0f> 0b e9 c7 fd ff ff 4c 89 ff e8 3d 4b b7 fd e9 97 fb ff ff 4c 89 RSP: 0018:ffff8880482cf5c8 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff8129f703 RDI: ffffed1009059eab RBP: ffff88801b034000 R08: 0000000000000001 R09: ffff88806cf37b0f R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801b034bc0 R13: 0000000000400000 R14: ffff88801b035da0 R15: ffff88801b035d98 FS: 00007f8109ada700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb2a3c0de60 CR3: 0000000046760000 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: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:2503 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] netlink_unicast+0x6ce/0xa00 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x90f/0xe00 net/netlink/af_netlink.c:1914 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 5327 Comm: syz-executor.3 Not tainted 5.10.240 #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 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0x154/0x190 net/socket.c:663 should_failslab+0x5/0x20 mm/slab_common.c:1200 __sys_sendto+0x21c/0x320 net/socket.c:2005 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 __build_skb+0x21/0x60 net/core/skbuff.c:318 build_skb+0x1a/0x220 net/core/skbuff.c:334 __tun_build_skb+0x2c/0x260 drivers/net/tun.c:1619 tun_build_skb+0x67a/0xfc0 drivers/net/tun.c:1747 tun_get_user+0x6c1/0x32f0 drivers/net/tun.c:1832 __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 tun_chr_write_iter+0xe1/0x1e0 drivers/net/tun.c:2059 call_write_iter include/linux/fs.h:2039 [inline] new_sync_write+0x42c/0x660 fs/read_write.c:518 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f810c5178ac vfs_write+0x7c0/0xb10 fs/read_write.c:605 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 ksys_write+0x12d/0x260 fs/read_write.c:658 RSP: 002b:00007f8109ad8f80 EFLAGS: 00000293 ORIG_RAX: 000000000000002c do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fd6588375ff RAX: ffffffffffffffda RBX: 00007f8109ad90f0 RCX: 00007f810c5178ac Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 RSP: 002b:00007fd655dfa150 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RDX: 0000000000000024 RSI: 00007f8109ad9140 RDI: 0000000000000004 RAX: ffffffffffffffda RBX: 00007fd658997f60 RCX: 00007fd6588375ff RDX: 000000000000002a RSI: 00000000200000c0 RDI: 00000000000000f0 RBP: 00007fd655dfa1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 RBP: 0000000000000000 R08: 00007f8109ad8fd4 R09: 000000000000000c R13: 00007fff0c5b700f R14: 00007fd655dfa300 R15: 0000000000022000 9pnet: Insufficient options for proto=fd R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007f8109ad9140 R14: 0000000000000004 R15: 0000000000000000 irq event stamp: 2381 hardirqs last enabled at (2391): [] console_unlock+0x92d/0xb40 kernel/printk/printk.c:2567 hardirqs last disabled at (2400): [] console_unlock+0x839/0xb40 kernel/printk/printk.c:2482 softirqs last enabled at (1930): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (1901): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 9041bdee1fe2ae75 ]--- EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir518619285/syzkaller.Lmcl4n/40/file0 supports timestamps until 2038-01-19 (0x7fffffff) 9pnet: Insufficient options for proto=fd 9pnet: Insufficient options for proto=fd FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 5336 Comm: syz-executor.3 Tainted: G W 5.10.240 #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 dst_alloc+0x9e/0x5d0 net/core/dst.c:89 rt_dst_alloc+0x73/0x440 net/ipv4/route.c:1676 ip_route_input_mc net/ipv4/route.c:1787 [inline] ip_route_input_rcu.part.0+0x5b2/0xd50 net/ipv4/route.c:2423 ip_route_input_rcu net/ipv4/route.c:2378 [inline] ip_route_input_noref+0x1c3/0x2f0 net/ipv4/route.c:2374 ip_rcv_finish_core.constprop.0+0x77c/0x1d20 net/ipv4/ip_input.c:361 ip_rcv_finish net/ipv4/ip_input.c:439 [inline] NF_HOOK include/linux/netfilter.h:296 [inline] NF_HOOK include/linux/netfilter.h:290 [inline] ip_rcv+0xd4/0x4a0 net/ipv4/ip_input.c:552 __netif_receive_skb_one_core+0x19b/0x1f0 net/core/dev.c:5395 __netif_receive_skb+0x27/0x1d0 net/core/dev.c:5509 netif_receive_skb_internal net/core/dev.c:5614 [inline] netif_receive_skb+0x12d/0x710 net/core/dev.c:5673 tun_rx_batched.isra.0+0x462/0x710 drivers/net/tun.c:1564 tun_get_user+0x191d/0x32f0 drivers/net/tun.c:2026 tun_chr_write_iter+0xe1/0x1e0 drivers/net/tun.c:2059 call_write_iter include/linux/fs.h:2039 [inline] new_sync_write+0x42c/0x660 fs/read_write.c:518 vfs_write+0x7c0/0xb10 fs/read_write.c:605 ksys_write+0x12d/0x260 fs/read_write.c:658 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fd6588375ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 RSP: 002b:00007fd655dfa150 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fd658997f60 RCX: 00007fd6588375ff RDX: 000000000000002a RSI: 00000000200000c0 RDI: 00000000000000f0 RBP: 00007fd655dfa1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007fff0c5b700f R14: 00007fd655dfa300 R15: 0000000000022000 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'. 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