bisecting fixing commit since 92bf22614b21a2706f4993b278017e437f7785b3 building syzkaller on 2ce644fcea660c78bc6a3ce7e05079a730743671 testing commit 92bf22614b21a2706f4993b278017e437f7785b3 with gcc (GCC) 10.2.1 20210217 kernel signature: 656c6919f3cbfbcdb2f4fa9f0d9830947266cd0060d27900fc735569d105a044 all runs: crashed: WARNING in drv_remove_interface testing current HEAD f296bfd5cd04cbb49b8fc9585adc280ab2b58624 testing commit f296bfd5cd04cbb49b8fc9585adc280ab2b58624 with gcc (GCC) 10.2.1 20210217 kernel signature: 86c33489af710a9c4d8ad79f2484dc13ad8069d62356eb9922e1415c20f81982 all runs: crashed: WARNING in drv_remove_interface revisions tested: 2, total time: 21m49.882865259s (build: 13m50.974608609s, test: 7m28.258244884s) the crash still happens on HEAD commit msg: Merge tag 'nfs-for-5.12-2' of git://git.linux-nfs.org/projects/anna/linux-nfs crash: WARNING in drv_remove_interface ------------[ cut here ]------------ wlan0: Failed check-sdata-in-driver check, flags: 0x4 WARNING: CPU: 1 PID: 10435 at net/mac80211/driver-ops.c:97 drv_remove_interface+0x2dc/0x350 net/mac80211/driver-ops.c:97 Modules linked in: CPU: 1 PID: 10435 Comm: syz-executor.4 Not tainted 5.12.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drv_remove_interface+0x2dc/0x350 net/mac80211/driver-ops.c:97 Code: c1 e9 03 80 3c 01 00 75 75 48 8b 83 40 06 00 00 48 8d b3 60 06 00 00 48 c7 c7 20 4f 92 89 48 85 c0 48 0f 45 f0 e8 1d 24 61 00 <0f> 0b e9 63 ff ff ff e8 a8 b3 08 fa e9 fc fd ff ff 4c 89 ef e8 8b RSP: 0018:ffffc9000aba77c0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88801f7ccc00 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff88da7980 RDI: fffff52001574eea RBP: ffff888010d00d00 R08: 0000000000000001 R09: ffff8880ba1301a7 R10: ffffed1017426034 R11: 0000000000000001 R12: ffff888010d00d00 R13: ffff88801f7cd250 R14: dffffc0000000000 R15: ffff888010d01d70 FS: 00007f0ec809d700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff889d1850 CR3: 000000001202d000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_do_stop+0xcc2/0x1b70 net/mac80211/iface.c:616 ieee80211_stop+0x72/0xf0 net/mac80211/iface.c:644 __dev_close_many+0x18e/0x2a0 net/core/dev.c:1635 __dev_close net/core/dev.c:1647 [inline] __dev_change_flags+0x24f/0x650 net/core/dev.c:8655 dev_change_flags+0x86/0x150 net/core/dev.c:8728 devinet_ioctl+0x1030/0x16b0 net/ipv4/devinet.c:1142 inet_ioctl+0x1ac/0x2a0 net/ipv4/af_inet.c:971 sock_do_ioctl+0xc6/0x210 net/socket.c:1039 sock_ioctl+0x3bf/0x570 net/socket.c:1179 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x11f/0x190 fs/ioctl.c:739 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x465b09 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:00007f0ec809d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000020001000 RSI: 0000000000008914 RDI: 0000000000000003 RBP: 00000000004b069f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffd8ae7d26f R14: 00007f0ec809d300 R15: 0000000000022000